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Over the last few years, the non-fungible token (NFT) ecosystem has become vast and dense. Now spanning multiple blockchains and dozens of platforms and marketplaces, it can be a daunting task to navigate the ins and outs of the weird wide world of NFTs.

Collectors and creators now have a wealth of avenues through which they can trade, flip, and invest in blockchain JPEGs. Gone are the days of just a few points of sale.

To help simplify the process, we’ve compiled a list of the top NFT marketplaces based on user numbers, sales volume, and general popularity — but presented in no particular order. Just as we brought you a guide to the top NFT blockchains, we now present a roadmap through the most prominent NFT trading platforms on the web.

OpenSea

Supported Blockchains: Ethereum, Polygon, Klatyn, and Solana

Supported Payment Methods: ETH/WETH, SOL, USDC, DAI, APE, Credit/Debit Card via MoonPay

OpenSea is widely regarded as the largest and most comprehensive NFT marketplace in existence. Founded in 2023, the platform has grown in leaps and bounds over the years to encompass a wide variety of photography, digital art, music, and more. It also hosts an array of tools for both NFT collectors and creators.

As far as trading is concerned, OpenSea takes a 2.5 percent fee off the final price of every NFT transaction. Other fees set by NFT creators are also regularly ensured and usually range from around 2.5 – 10 percent. Although the site’s infrastructure remains a major point of contention within the NFT community, OpenSea undoubtedly remains the top NFT marketplace.

LooksRare

Supported Blockchains: Ethereum

Supported Payment Methods: ETH/WETH

LooksRare is a relatively new NFT marketplace launched at the start of 2023 and is said to be the most direct competitor to OpenSea. Marketed as a “community-first NFT marketplace that actively rewards traders, collectors, and creators for participating,” LooksRare quickly became a favorite within the Ethereum NFT ecosystem.

LooksRare also rolled out an airdrop of its very own native token $LOOKS to collectors who traded 3 ETH or more on Opensea between June 16, 2023, and Dec. 16, 2023, further solidifying their position as an OpenSea competitor. Similarly, the platform takes two percent off NFT trades (0.5 percent less than OpenSea) and also allows NFT creators to set their own royalty fees, which usually mirror a range comparable to OpenSea.

Nifty Gateway

Supported Blockchains: Ethereum

Supported Payment Methods: Credit/Debit Card, Prepaid ETH, and Gemini Account

Nifty Gateway, founded in 2023 by Duncan and Griffin Cock Foster, is billed as a “digital art online auction platform” for NFTs. The platform is owned by crypto-exchange giant Gemini and is heralded by both collectors and creators as one of the most accessible of all NFT marketplaces.

Nifty Gateway hosts a vast selection of weekly curated NFT drops as well as a growing number of verified external collections (Bored Apes, Doodles, etc.). The marketplace itself is an outlier on this list because it is custodial in nature.

In short, this means that NFTs on the platform are stored in a secured Nifty Gateway Omnibus wallet rather than living in individual collectors’ wallets. While non-custodial platforms offer interoperability (i.e. you can view and trade a single NFT via OpenSea, LooksRare, Rarible, etc.) Nifty Gateway collectors must withdraw their NFTs out into an external wallet to trade on other platforms. You can read more on custodial vs noncustodial platforms here.

On top of this, Nifty Gateway has some of the highest fees of all NFT marketplaces with a five percent service fee (marketplace fee) and a 10 percent artist commission/creator fee taken off of the final sale price of NFT transactions.

Magic Eden

Supported Blockchains: Solana, Ethereum

Supported Payment Methods: SOL

Magic Eden is an NFT marketplace that was initially built on the Solana blockchain and later added other blockchains, such as Ethereum. It is billed as community-centric. Founded in late 2023, the platform is somewhat similar to LooksRare in the way that it was created by members of the NFT community as a marketplace competitor and as a solution to the problems with other existing NFT marketplaces.

Magic Eden is widely heralded for its simplistic and unique tools for both collectors and creators as well as its curated list of upcoming Solana collections that allow users to find, at a glance, what NFT drops are happening on the platform in the near future. Similar to LooksRare, Magic Eden employs a two percent sales fee and allows NFT creators to set their own royalty percentages.

Solanart

Supported Blockchains: Solana

Supported Payment Methods: SOL

Solanart is a newer Solana-based NFT marketplace that launched in 2023 and quickly gained popularity as one of the go-to platforms within the Solana NFT ecosystem. Although anyone can become a collector on Solanart, artists must apply for a creator account before being enabled to mint on the platform.

Despite its curatorial roadblocks, Solanart is home to a growing number of PFP, gaming, and metaverse-leaning NFT projects. Solanart employs a three percent sales fee and allows NFT creators to set their own royalty percentages.

AtomicHub

Supported Blockchains: Wax

Supported Payment Methods: WAX

AtomicHub is a one-stop solution for creating, trading, buying, and selling NFTs on the Wax blockchain. Launched in June 2023, AtomicHub is an interface for the NFT standard AtomicAssets, which was developed by blockchain tech company Pink.gg.

AtomicHub is split into an explorer that allows users to browse through all AtomicAssets NFTs, a marketplace where users can buy and sell NFTs, a trading section, and of course, an NFT creator portal that allows anyone to create their own NFTs without any required coding knowledge. AtomicHub takes two percent of the final price of every sale on the platform and fee and allows NFT creators to set their own royalty percentages.

Rarible

Supported Blockchains: Ethereum, Tezos, Polygon, and Flow

Supported Payment Methods: ETH/WETH and Credit/Debit Card

Rarible is a Los Angeles-based NFT marketplace founded in November 2023. Possibly due to its longevity in the space, Rarible is seen as one of the top NFT marketplaces (especially when it comes to Ethereum-based collectibles) and houses a wide variety of different types of NFTs.

The platform is managed via the Rarible DAO and is backed by the governance token $RARI. Although the weekly $RARI distribution for trading NFTs on the Rarible marketplace was discontinued via DAO vote in January 2023, $RARI remains an interesting use case for trading rewards and one that undoubtedly inspired platforms like LooksRare to adopt similar models.

Similar to other marketplaces, Rarible employs a two percent sales fee and allows NFT creators to set their own royalty percentages. Considering Rarible is a collection aggregator, similar to OpenSea and LooksRare, many use this marketplace as a one-stop-shop for NFTs in place of OS and LR.

SuperRare

Supported Blockchains: Ethereum

Supported Payment Methods: ETH/WETH

SuperRare is one of the oldest and most prominent marketplaces existing within the NFT ecosystem. Launched in the Spring of 2023, the marketplace s billed as “Instagram meets Christie’s” and lives as the most popular curated NFT platform.

Due to its highly curatorial nature, SuperRare is a closed marketplace that accepts artist applications on a rolling basis. Some artists have waited months (even over a year) to be accepted by the platform, which has solidified SuperRare’s exclusivity in a somewhat similar fashion to Nifty Gateway.

One of the most unique features of SuperRare is that the platform only allows for the minting of 1/1 NFTs to be sold in an auction format. Yet, similar to Rarible, in 2023, the platform introduced a $RARE governance token that marked SuperRare’s transition to a similar DAO-led model.

There is a three percent transaction fee, paid by the buyer, for all purchases on SuperRare. Yet, the platform takes a hefty 15 percent commission off of the final sale price for all primary sales. For secondary sales, a 10 percent royalty is reserved and paid to creators.

Foundation

Supported Blockchains: Ethereum

Supported Payment Methods: ETH

Foundation is a marketplace that aims to aid in the building of a new creative economy through NFTs. Launched in February 2023, Foundation is invite-only for creators and, similar to SuperRare, runs on a 1/1 auction format.

While Foundation certainly embodies an air of exclusivity, its invite model has allowed a great many artists, especially those still waiting for acceptance to SuperRare, to mint and sell NFTs on a curatorial-style platform. Similar to SuperRare, Foundation only allows for the minting of images, videos, and 3D artwork, limiting the types of NFTs that can be sold on the platform.

Foundation takes five percent off of every final sale price for primary and secondary sales, which is significantly higher than most other marketplaces. For secondary sales, creators receive an automatic 10 percent royalty.

Objkt

Supported Blockchains: Tezos

Supported Payment Methods: XTZ

Objkt is the largest and most popular marketplace on the Tezos blockchain. Launched in early 2023, the platform is widely heralded as being the OpenSea of Tezos NFTs, and hosts everything from JPEGs to videos and songs.

Originally, Objkt began as a platform that offered extra tools and a different UI experience from Hic et Nunc (HEN) — the previous most popular Tezos NFT marketplace. When HEN was discontinued in November 2023, Objkt quickly took over as an aggregate for Tezos NFT collections and quickly became the one-stop shop for XTZ NFTs.

Similar to OpenSea, Objkt takes a 2.5 percent fee off of the final price of every NFT transaction. The platform also honors creator royalties and allows artists to set their own fee percentages.

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What Nft Marketplaces Support Creator Royalties? A Guide

Creator royalties: Love them or hate them, it cannot be denied that they provide central appeal for artists looking to make a blockchain-based living from their craft. Through royalties, creators receive recurring income whenever their works change hands through the various NFT marketplaces that populate the blockchain. This makes it possible for many in Web3, regardless of status, to sustain themselves from project to project.

In 2023, though, creator royalties came under fire. Emerging as a major point of contention within the NFT space, the decisions of major marketplaces effectively shook up the established Web3 royalty dynamic, making it clear that not everyone was on the same page. And as more prominent players joined the debate, the question was raised: where do the major NFT marketplaces — those that make trading NFTs possible in the first place — stand on this issue?

To answer the question and to alleviate some of the frustration users often feel in trying to chase down information regarding marketplace minting policies and fee structures, we’ve created this guide as a quick reference of where the top NFT marketplaces stand on creator royalties.

Platforms that do honor creator royalties OpenSea

Credit: OpenSea

OpenSea is widely regarded as the largest and most comprehensive NFT marketplace. Founded in 2023, the platform has grown in leaps and bounds over the years to encompass a wide variety of photography, digital art, music, and more. It also hosts an array of tools for both NFT collectors and creators.

As far as royalties are concerned, OpenSea made major waves in November 2023 when the platform began considering removing royalties altogether from existing collections. The move incited significant backlash throughout the NFT community, prompting the company to retract its commitment, updating the original blog post to reflect its continued support of creator royalties.

Creator royalties are honored on OpenSea. Not only are they still offered at a platform level, as they always have been, but royalties set by creators on-chain are also honored and enforced on the marketplace.

Nifty Gateway

Credit: Nifty Gateway

Nifty Gateway, founded in 2023 by Duncan and Griffin Cock Foster, is billed as a “digital art online auction platform” for NFTs. Owned by crypto-exchange giant Gemini, the platform is now helmed by Eddie Ma (technical leader) and Tara Harris (leader for non-tech) after the Cock-Foster brothers stepped down in early 2023.

Although Nifty Gateway has some of the highest marketplace fees, creator royalties are honored on the platform. As the Nifty Gateway help section dictates, the company believes that “secondary market fees are part of what makes NFTs special.” It offers enforceable royalties at a platform level while also honoring on-chain royalties set by creators.

AtomicHub

Credit: AtomicHub

AtomicHub is a one-stop solution for creating, trading, buying, and selling NFTs on the Wax blockchain. Launched in June 2023, AtomicHub is an interface for the NFT standard AtomicAssets, which blockchain tech company chúng tôi developed.

Currently, creator royalties are honored on the platform and are enforced at the contract level (similar to other WAX marketplaces), thanks to the Atomic Asset standard.

Rarible

Credit: Rarible

Rarible is a Los Angeles-based NFT marketplace founded in November 2023. Possibly due to its longevity in the space, Rarible is seen as one of the top NFT marketplaces (especially when it comes to Ethereum-based collectibles) and houses a wide variety of different types of NFTs.

The platform is managed via the Rarible DAO and is backed by the governance token $RARI. Currently, creator royalties are honored on the platform. Like other Ethereum-based marketplaces, Rarible honors royalties on-chain and allows users to set royalties at a platform level.

SuperRare

Credit: SuperRare

SuperRare is one of the oldest and most prominent marketplaces within the NFT ecosystem. Launched in the Spring of 2023, the marketplace is billed as “Instagram meets Christie’s” and lives as the most popular curated NFT platform. Currently, creator royalties are honored on the platform. 

Although the platform is invite only and takes a hefty 15 percent commission off of the final sale price for all primary sales, for secondary sales, a 10 percent royalty is automatically reserved and paid to creators. In addition to creator royalties, SuperRare stands out amongst its peers by offering collectors a shot at royalties-based benefits.

Foundation

Credit: Foundation

Foundation is a marketplace that aims to aid in the building of a new creative economy through NFTs. Launched in February 2023, Foundation is invite-only for creators and, similar to SuperRare, runs on a 1/1 auction format.

Foundation takes five percent off every final sale price for primary and secondary sales, which is significantly higher than most other marketplaces. But even so, currently, creator royalties are honored on the platform, as creators receive an automatic 10 percent royalty from all secondary sales.

Objkt

Credit: Objkt

Objkt is the largest and most popular marketplace on the Tezos blockchain. Launched in early 2023, the platform is widely heralded as being the OpenSea of Tezos NFTs and hosts everything from JPEGs to videos and songs. Creator royalties are honored on the platform, and similar to other marketplaces, Objkt allows artists to set their fee percentages.

Blur

Credit: Blur

Blur is an NFT marketplace created by an enigmatic Web3 developer, Pacman. Launched in October 2023, Blur initially received widespread support and investment from prominent names in the NFT space. It was billed as one of the fastest NFT aggregators and trade platforms on Ethereum.

Currently, creator royalties are honored on the platform through the filter registry. Similarly, at the beginning of 2023, Blur began enforcing a minimum royalty of 0.5 percent on immutable collections that cannot use the filter registry. The percentage is also set to increase by 0.5 percent over time, to be modified accordingly with how the Blur developers observe the effects of each increase.

Gem

Credit: Gem

Gem is an NFT aggregator (not quite a marketplace), launched in January 2023, that enables the batch sale of NFTs, allowing users to save on gas fees. OpenSea acquired the platform after sexual misconduct allegations were brought against its co-founder. The platform’s functionality has remained the same, with creator royalties still honored on the platform even after becoming a part of the OpenSea NFT ecosystem.

X2Y2

Credit: X2Y2

X2Y2 is an NFT marketplace that launched in January 2023 with the goal of building a truly decentralized NFT market and giving it back to the greater NFT community. Having been one of the first marketplaces to drop creator royalties, the platform emerged as a prominent voice in the debate against royalties before changing directions a few months later to start honoring and enforcing royalties on all collections.

Platforms that don’t honor creator royalties LooksRare

Credit: LooksRare

LooksRare, launched at the beginning of 2023, was initially heralded as potentially the most direct competitor to OpenSea. Marketed as a “community-first NFT marketplace that actively rewards traders, collectors, and creators for participating,” LooksRare quickly became a favorite within the Ethereum ecosystem and remains a popular choice for NFT enthusiasts.

However, creator royalties are not honored on LooksRare. Starting in October 20022, LooksRare opted to remove standard creator royalties, instead directing 25 percent of protocol fees to creators and allowing buyers to opt-in to pay optional royalties at checkout if desired.

Magic Eden

Credit: Magic Eden

Magic Eden is an NFT marketplace that was initially built on the Solana blockchain and later expanded to other blockchains, such as Ethereum. Billed as community-centric, it was founded in late 2023 and was created by members of the NFT community as a marketplace competitor and as a solution to problems with other existing NFT marketplaces.

Magic Eden has remained at the forefront of the creator royalties debate, first rolling out a controversial royalty protection tool for creators, before backtracking weeks later, following the example of others, and making royalties optional. Currently, creator royalties are not honored on the platform. Instead, buyers get to decide what percentage of royalties they pay instead of creators setting an automatic threshold themselves.

Solanart

Credit: Solanart

Like Magic Eden, Solanart is a Solana-based NFT marketplace that launched in 2023 and quickly gained popularity as one of the go-to platforms within the Solana NFT ecosystem. Although anyone can become a collector on Solanart, artists must apply for a creator account before being enabled to mint on the platform. Despite its curatorial roadblocks, Solanart is home to a growing number of PFP, gaming, and metaverse-leaning NFT projects.

While once Solanart employed a three percent sales fee and allowed NFT creators to set their royalty percentages, in response to the growing debate, the platform opted to drop all fees. Currently, creator royalties are not honored on the platform.

Sudoswap

Credit: Sudoswap

Sudoswap is a decentralized exchange (DEX) protocol (not quite a marketplace) that enables royalty-free NFT swapping. Creator royalties are not honored on the platform. Launched in May 2023, the platform gained significant traction throughout the summer and fall as an alternative to traditional NFT marketplaces. It has emerged as a prominent place where collectors can circumvent creator royalties.

Yawww

Credit: Yawww

Originally launched as a peer-to-peer NFT lending platform, Yawww made headlines in July 2023 by morphing into a community-owned NFT marketplace. Billed as the “first democratized NFT marketplace,” Yawww put the power to dictate royalty percentages in the hands of the buyer rather than the creator — essentially launching a marketplace that does not honor creator royalties, as the default for royalties on the platform is zero percent.

10 Best Nft Music Marketplaces And Web3 Streaming Services

As the NFT music industry continues to grow, so does the number of NFT music marketplaces and web3 streaming services. These platforms allow artists to sell their NFTs and give fans a way to stream and purchase NFT music. These platforms not only provide a way for fans to enjoy music and purchase their favorite artist’s NFTs, but also serve as a means for artists to showcase their work and gain an additional source of income.

NFTs are one-of-a-kind assets that are stored and traded on a blockchain. They are unchangeable, scarce, and publicly provable. For example, in the music industry, artists can sell restricted digital content to fans who pay with cryptocurrency. You can now create any music content that no one can copy.

Sound.XYZ

Sound.XYZ is the best place to find and stream NFT music. chúng tôi is a web3 streaming service that allows users to stream NFT music directly from their favorite artists’ websites. chúng tôi also has a built-in wallet so users can store their NFTs in one place.

If you’re looking for the best NFT music marketplace and web3 streaming service, look no further than chúng tôi chúng tôi is the leading platform in the NFT music industry and provides artists with a way to sell their NFTs and give fans a way to stream and purchase NFT music.

Origin Story

Origin Story

Origin Story powers marketplaces spanning across industries, including Real Estate, Web3 collections, and Music NFTs. The platform launched the record-breaking 3LAU NFT auction, breaking the record for the most valuable music NFT mint at $11.7 million. Origin Story is partnered with Exceed to bring Music NFTs massive utility, from streaming royalties to real-world experiences for fans. Origin’s first collection with Exceed consists of NFTs from grammy-nominated artist Lil Durk, and the digital assets provide unique utility outside of being a collectible for fans. The platform’s native token OGN is used as a value-accrual token, and users can stake the token to earn revenue generated by Origin Story’s marketplace fees.

Async Music

Async music is a new type of music that is created using asynchronous programming. Async music is composed of small snippets of sound that are played in sequence. The small snippets of sound are called “tasks,” and they play in parallel.

Async music is similar to traditional music in its melody and harmony. However, async music is more experimental and can be more complex. Async pieces are created using any sound, including synthesizers, drum machines, and field recordings.

Async music is worth checking out if you’re looking for something new and different. Async music is still in its early stages but has a lot of potential. We’re excited to see what the future of async music holds.

Royal

Royalty-free music is a type of music that does not require a license for use. Anyone can use royalty-free music for personal or commercial purposes without paying royalties. It is often used in YouTube videos, video games, and other digital media.

If you’re looking for royalty-free music, there are a few places you can look. The best place to find royalty-free music is through a site called Jamendo. Jamendo is a site that offers a wide variety of royalty-free music. Another great place to find royalty-free music is through the Creative Commons website.

When searching for royalty-free music, be sure to read the licensing terms carefully. Some royalty-free music is only licensed for non-commercial use. Others may require you to give credit to the artist in your project. Be sure to check the licensing terms before using any royalty-free music in your project.

OneOf

OneOf is a revolutionary, eco-conscious NFT platform that allows users to stream, buy, and sell NFTs. OneOf is the first NFT platform to offer a sustainable, eco-friendly solution for the NFT industry. In addition, OneOf uses a portion of the proceeds from each transaction to plant trees and offset carbon emissions.

OneOf is also one of the only NFT platforms that allow users to stream NFT music. OneOf’s web3 streaming service will enable users to stream NFT music directly from their favorite artists’ websites. OneOf also has a built-in wallet so users can store their NFTs in one place.

Objkt

Discover the latest and greatest in NFT music with Objkt. Objkt is a web3 streaming service that allows users to stream NFT music directly from their favorite artists’ websites. Objkt also has a built-in wallet so users can store their NFTs in one place.

Objkt is the leading platform in the NFT music industry and provides artists with a way to sell their NFTs and give fans a way to stream and purchase NFT music. Objkt is also one of the only NFT platforms that allow users to stream NFT music.

Kalamint

Kalamint is the best NFT marketplace and web3 streaming service. Kalamint provides artists with a way to sell their NFTs and gives fans a way to stream and purchase NFT music. Kalamint is also one of the only NFT platforms that allow users to stream NFT music.

In the NFT music industry, Kalamint is the leading platform. Kalamint offers a wide variety of NFTs for sale, as well as a web3 streaming service that allows users to stream NFT music directly from their favorite artists’ websites. Kalamint also has a built-in wallet so users can store their NFTs in one place.

Audius Music

Audius is a decentralized music streaming and downloading platform built on the Ethereum blockchain. Audius allows artists to upload, manage, and monetize their music. Audius also allows fans to stream and download songs.

Audius is one of the only NFT platforms that allow users to stream NFT music. Audius also has a built-in wallet so users can store their NFTs in one place. Audius is on top of the latest and greatest in NFT music.

Emanate

Emanate is a music collaboration, sharing, and distribution platform that runs on the Ethereum blockchain. Emanate allows artists to create, share, and monetize their music. Emanate also allows fans to stream and download songs.

Emanate is one of the only NFT platforms that allow users to stream NFT music. Emanate also has a built-in wallet so users can store their NFTs in one place. As a result, emanate is the best platform for music collaboration, sharing, and distribution.

Emanate provides artists with a way to sell their NFTs and gives fans a way to stream and purchase NFT music. Emanate is also one of the only NFT platforms that allow users to stream NFT music.

OPUS

OPUS is a decentralized platform allowing artists to upload, store, and share music. OPUS also allows fans to stream and download songs.

OPUS is one of the only NFT platforms that allow users to stream NFT music. OPUS also has a built-in wallet so users can store their NFTs in one place. As a result, OPUS is the best platform for music sharing.

OPUS provides artists with a way to sell their NFTs and gives fans a way to stream and purchase NFT music. OPUS is one of the only NFT platforms allowing users to stream NFT music.

BPM

BPM is a music NFT Discord bot that allows artists to sell their NFTs and gives fans a way to stream and purchase NFT music. BPM also has a built-in wallet so users can store their NFTs in one place.

Although BPM isn’t a traditional  NFT marketplace, it’s one of the only NFT platforms that allow users to stream NFT music. As a result, BPM is the best Discord bot for music NFTs.

BPM provides artists with a way to sell their NFTs and gives fans a way to stream and purchase NFT music. BPM is also one of the only NFT platforms that allow users to stream NFT music.

Additional NFT resources:

A Complete Guide To Pl/Sql With

Introduction to PL/SQL WITH

PL/SQL WITH clause is used for doing the subquery refactoring in complex queries that involve usage of the same result set of a particular query again and again. It is similar to the subqueries that are used in SQL but using the with a clause in the query reduces the complexity of debugging and execution of your query when it is very complex. The usage of with clause is also being done when we need a certain temporary table that will hold the data to be used by our query once or multiple times even without having any of the view or temporary table.

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Syntax of PL/SQL WITH

WITH clause can be used which any of the sql statements of SELECT, INSERT, UPDATE or DELETE. The syntax of WITH clause is given below:

WITH new temp table (list of new columns) as (statement for filling temp table), statement(s) which use the temp table;

In the above syntax, the new temp table is the temporary table that can be referenced for retrieving the temporary result that is acquired by executing the statement for filling the temp table. The list of the columns that are specified is the names of the columns of the temporary table which should be the same as that of the number column values retrieved from the statement for filling the temp table. The keyword is used to alter mentioning the list of columns inside the brackets for the temporary table. The other statements using the result of the new temp table should be specified after giving a comma after filling the query.

Execution of Statement Containing WITH Clause

The execution of the query statement containing the with clause gives the preference for calculating the result set of the clause which holds the with in it and retrieve the temporary result set in the new temp table.

After this, the statement or statements which are specified other than the with clause are executed. These statements can make the use of the new temp table in it as many times as required. They will be executed after retrieving the result in the new temp table.

The temporary table that is the new temp table is also called CTE which is a common table expression.

Usage of WITH Clause

There are many scenarios in which the usage of with clause may prove helpful in query execution and data management.

Here are some of the key cases where it can be used most probably to make efficient usage of executing and debugging the complex queries that are listed below:

When it is not possible for creating a view in a database for using it in query statements.

When we have to make use of the same result set multiple times inside the query statement.

When we have to use the recursion while retrieving the result set.

Examples of PL/SQL WITH

Given below are the examples of PL/SQL WITH:

Example #1

Suppose we have a table named employee_details which contains the records as shown in the output of the below query statement.

Code:

SELECT * FROM [employee_details]

Output:

Now suppose, that we have to find out how much does salary the owner of the fruits and vegetable stores is to all the employees working in that particular store. In that case, the total salary for each store can be calculated as follows by using the with a clause for storing temporary results.

WITH temp_table AS ( SELECT store_id as "store", SUM(salary) salary FROM employee_details WHERE store_id IS NOT NULL GROUP BY store_id ) SELECT store, salary as "storewise salary" FROM temp_table WHERE store IN ("VEGETABLES","FRUITS");

Output:

The execution of the above query statement will be done firstly for the with statement query to store the details of all the stores and their total salaries I the table temp_table. After this, the execution of the other statement of retrieving the results for only those stores whose store id column will contain vegetables and fruits will be done. The output of the execution of the above query statement is as shown below showing the two stores and the total salary to be given by the owner for each of the stores respectively.

Example #2

Using the temporary result of WITH clause multiple times.

Let’s take one more example to understand the usage of with clause. There is one more table containing alternative contact mobile numbers of the employees named contact_details. The contents of this table can be retrieved by using the following query statement.

Code:

SELECT * FROM [contact_details]

Now, consider that we need to retrieve the records from the employee_details table that have a salary greater than the average salary. Along with that we also have to retrieve the mobile number present in the contact details table for that corresponding employee. In this case, we have to make use of the temporary table created by the with clause twice. One will be while calculating the average salary and the other one while retrieving the result set of it for getting the column details of those employees.

Code:

WITH temp_table AS( SELECT f_name, l_name, contact_number, mobile_number, salary FROM employee_details INNER JOIN contact_details ON employee_details.employee_id = contact_details.employee_id ORDER BY f_name ) SELECT f_name as "First Name", l_name as "Last Name", contact_number as "Contact Number 1", mobile_number as "Contact Number 2", salary FROM temp_table WHERE

Output:

Conclusion

We can make use of the with a clause to get the result so that it can be used inside the particular query statement as a temporary table. The result set of the with clause can be referenced single or multiple times inside the same query statement. The with clause is most often used in complex query statements for efficient and easy execution and debugging of the query statement.

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We hope that this EDUCBA information on “PL/SQL WITH” was beneficial to you. You can view EDUCBA’s recommended articles for more information.

Complete Guide To A Decentralized Exchange – Pancakeswap

This article was published as a part of the Data Science Blogathon.

Introduction

our assets. Traditionally, we use a centralized exchange to trade our assets. These centralized exchanges are the middlemen. Our crypto assets are stored on these exchanges, and the exchanges have control over our keys. If these exchanges decide to suspend withdrawals or any features on the exchange, our assets will be stuck on the exchange. This was a similar case that happened to exchanges such as Celsius, Voyager, and Vauld. Due to this, many users’ funds to date are stuck in these exchanges.

Blockchain resolves the above issues by introducing the concept of decentralization. Blockchain technology eliminates the middlemen, giving users control of their assets.

In this guide, I will walk you through how to use one of the most popular decentralized exchanges in the space – PancakeSwap.

What is a Decentralized Exchange (DEX)?

Decentralization brings power into the hands of the people. A decentralized exchange is a decentralized application (dapp) built on a blockchain that allows users to trade their assets in a decentralized manner. As a result, a user does not have to deposit their funds on the exchange. A DEX places control in the hands of the user. All the transactions that a user wants to perform take place via a crypto wallet, and for these transactions to take place, a user must pay fees which is very little compared to a centralized exchange. Hence, users can trade assets without actually depositing these assets on the exchange.

Every DEX is built on a blockchain. For example, UniSwap is a DEX built on the Ethereum blockchain, Raydium is a DEX built on the Solana blockchain, and PancakeSwap is a DEX built on the balance smart chain network. For interacting with a DEX, some fees are required. These fees are in very small amounts as compared to a CEX. The fees are paid in the underlying blockchain native token.

For example, to interact with UniSwap, a user is supposed to pay fees in ETH. For Raydium a user is supposed to pay fees in SOL and for PancakeSwap, a user is supposed to pay fees in BNB.

What is PancakeSwap?

PancakeSwap is a decentralized exchange that is built on the Binance Smart Chain Network (BSC). PancakeSwap allows users to easily swap, stake, farm their crypto assets, participate in contests, and offer many more features.

To access PancakeSwap, a user must use a wallet connected to the Binance Smart Chain Network.

Furthermore, Users are supposed to pay fees in the form of BNB tokens, to perform any transaction on the dapp.

Wallet Used in PancakeSwap

As specified above, we are supposed to use a crypto wallet to interact with a decentralized application. In this guide, I will use the MetaMask web extension wallet to perform any transactions with the DEX.

MetaMask is a crypto wallet where users can send, receive, swap, store, and buy digital assets easily and securely.

Connect your Web3 Wallet to the Dapp

The first step to accessing a DEX is to connect your crypto wallet; here, in our case, the MetaMask wallet. You can connect your crypto wallet by following the steps below:

Select your preferred wallet.

Your wallet will now open on your browser. Select which account of your wallet you want to connect to the DEX.

Once connected, you will notice your wallet address on the home page as well as in the top right-hand corner of the application.

Your wallet is now connected to the DEX. Hence you can now interact with the DEX features.

Swap Tokens

Swapping refers to the process of converting one token to another. For example, converting BNB to ETH.

Users can swap their tokens the following way:

Since we are on the home page, hover over the Trade option in the navbar.

Select the Swap option.

Select or search for the token with which you want to swap the respective token.

Enter the amount of the token you want to swap.

Once the swap is complete, in your wallet, you will notice a decrease in the quantity of the tokens you swapped with and an increase in the quantity of the tokens you swapped it for.

Limit Orders

The limit option in pancake swap is the same as in trading. Limit here refers to a particular price you want to swap the respective token. You can set the price you want to perform the swap in the limit option. Only if the price is met then will the transaction get executed.

For example, you can set the limit price to $200 to swap BNB for BUSD. Only if the price of BNB reaches $200 will the transaction take place.

Used can swap their tokens using the limit option in the following way:

Select the Limit option below the navbar.

Select or search for the token with which you want to swap the respective token.

Enter the amount of the token you want to swap.

Enter the price at which you want the swap to take place.

Scroll down to see your open orders. Your open orders are the orders which are still pending to be executed.

The order history option shows you all your past executed swaps using the limit option.

Once the limit price is met, the swap will be executed, and in your wallet, you will notice a decrease in the quantity of the tokens you swapped with and an increase in the quantity of the tokens you swapped for.

Provide Liquidity

Liquidity refers to lending your crypto to the exchange to increase the liquidity of the protocol. A protocol having high liquidity will be able to execute transactions (swap) very easily.

Users are required to provide liquidity in the form of two tokens. Both tokens are required to be in 50-50 weightage.

For example, if you are providing liquidity to the USDT-BUSD pair, you are required to supply the same quantity of BUSD and USDT.

For liquidity, users have rewarded LP tokens that they can stake and earn a good yield. Furthermore, users are also rewarded 0.17% of the fees generated by the respective trading pair.

Users can provide liquidity by following the steps below:

Since we are on the limit page, hover over the Trade option in the navbar.

Select the Liquidity option.

Select the pair to which you want to add liquidity.

Enter the amount of liquidity you want to provide.

Once the transaction is processed, you will notice the number of tokens you used to supply liquidity is decreased, and you will notice a new token in your wallet, the LP token.

Earn Features

Lets us now put our crypto to work. In the Earn section, we can earn yield for staking our tokens or LP tokens. This is similar to the concept of dividends in the stock market. Users are required to stake their tokens for a particular time (fixed) or flexible time and, depending on the yield rates, will earn the respective returns.

Farms (LP Staking)

The farm option is similar to the pool option. The only difference is that users are required to stake their LP tokens in the farm option. By staking their LP tokens, users can earn a good additional yield on their tokens.

Users can stake their LP tokens by following the steps below:

Hover over the Earn option in the navbar.

Select the Farm option.

On the Farm page, select the LP tokens you wish to stake.

Enter the amount of LP tokens you want to stake.

To calculate your ROI follow the steps below:

Enter your investment amount.

Select the duration of your lockup period.

Select the compounding period of your profits.

These are your results.

Whatever returns are shown are not guaranteed. The APR fluctuates from day to day. So you can expect your results to be higher or lower.

Pools (Token Staking)

The pool section is used to stake your tokens to earn yield. You can stake your tokens for a fixed amount of time or variable time. The yield rates for fixed staking are much higher than flexible staking.

Users can stake their tokens by following the steps below:

Select the Pool option from below the navbar.

On the Pool page, select the token you wish to stake.

Follow the steps below for staking via locked or flexible method.

Flexible:

In flexible staking, users can withdraw their staked tokens whenever they please.

Enter the number of tokens you want to stake.,

Locked:

In locked staking, users stake their tokens for a fixed time. Users will not be able to withdraw their tokens until maturity (similar to FD). Locked staking provides higher rates.

Enter the number of tokens you want to stake.,

Select the duration you want to lock your tokens for.

Once the transaction has been confirmed, you will notice the number of tokens you allocated to staking has been decreased in your wallet. Once the duration of your staking is complete, the tokens, along with interest will be automatically transferred to your wallet.

To calculate your ROI follow the steps below:

Enter your investment amount.

Select the duration of your lockup period.

These are your results.

Whatever returns are shown are not guaranteed. The APR fluctuates from day to day. So you can expect your results to be higher or lower.

Prediction

The prediction section is like gambling. Users can bet whether the price of $CAKE or $BNB will go up or down in 5 minutes. If the user predicts the right answer, they will receive their investment x the payout. If the user bets the wrong way, they will lose the entire investment.

For example, if a user invests $10, the payout is 2, and the user’s prediction is UP. If, after 5 minutes, the asset price goes up from the price the user entered, the user will earn 3*10 = $20.

Users can predict by following the steps below:

Hover over the Win option in the navbar.

Select the Prediction option.

On the Prediction page, you will notice the current and next predictions.

You can see the payouts for both predictions.

You can notice the time remaining for the next round to start.

Enter the amount you wish to invest.

If you win, you will receive the payout and your initial investment directly in your wallet.

Bonus Tip!

You must have noticed a slippage option when performing any transaction, such as swapping or adding liquidity.

Slippage refers to the price change between the expected order price and the executed order price.

For example, if your slippage is 10% and you wish to swap an asset, the asset may get swapped when the asset price is +10% or -10%.

To edit the slippage, follow the steps below:

Enter or select your preferred slippage percent.

Conclusion

Also, before visiting any dapp site, ensure that the URL is correct. You may do this by visiting the protocol’s social media profiles, such as Twitter, and using the links in the bio. There have been several scams as a result of phishing links.

Key Takeaways

Decentralized exchange gives control to the people.

A decentralized exchange allows users to trade assets without depositing them on the exchange.

PancakeSwap is a decentralized exchange built on the Binance Smart Chain (BSC) network. Transaction fees on the exchange are paid in the BNB coin.

PancakeSwap allows users to swap, stake, farm, and participate in contests and lottery and offers many more features.

Decentralized applications have risks associated with them. Please conduct intensive research before connecting to any decentralized platform.

Lastly, stay safe in crypto and remember, “not your key, not your crypto.”

The media shown in this article is not owned by Analytics Vidhya and is used at the Author’s discretion.

Related

Complete Guide To Java Datagramsocket

Introduction to Java DatagramSocket

Java DatagramSocket class represents a type of network socket that is connectionless and used for sending the packets of the datagram and receiving the packets of the datagram; for delivery of any packet, the datagram socket is the sending and receiving point of the service, and each and every packet sent or received using datagram socket is addressed individually and then routed to the destination, and if multiple packets are transmitted between two machines, the routing of the packets may be different, and they can arrive in any order, and the SO_BROADCAST option is enabled in a newly constructed datagram socket which allows transmission of broadcast diagrams.

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Syntax

The syntax of java DatagramSocket is as follows:

DatagramSocket variable_name = new DatagramSocket(); How DatagramSocket work in Java?

Datagram Sockets are created on the client program side and server program side by using the DatagramSocket class for communication link and for sending and receiving the data packets.

DatagramSocket() constructor can be chosen to create a datagram socket on the client program side, and the DatagramSocket(int port) constructor can be chosen to create a datagram socket on the server program side.

SocketException object is thrown by either of the constructors if they cannot create the datagram sockets or if the datagram socket cannot be bound to the port.

Once the program creates the datagram socket object, send(DatagramPacket dgp) is called by the program to send the datagram packets and receive(DatagramPacket dgp) to receive datagram packets, respectively.

Consider the below program to send and receive datagram packets by using the DatagramSocket class:

Code:

import java.net.*; public class Sender { public static void main(String[] args) throws Exception { DatagramSocket datasoc = new DatagramSocket(); String strn = "Welcome to DatagramSocket class"; InetAddress ipaddr = InetAddress.getByName("127.0.0.1");                 DatagramPacket dpac = new DatagramPacket(strn.getBytes(), strn.length(), ipaddr, 3000); datasoc.send(dpac); datasoc.close(); } } import java.net.*; public class Receiver { public static void main(String[] args) throws Exception { DatagramSocket datasoc = new DatagramSocket(3000); byte[] buff = new byte[1024]; DatagramPacket dpac = new DatagramPacket(buff, 1024); datasoc.receive(dpac); String strn = new String(dpac.getData(), 0, dpac.getLength()); System.out.println(strn); datasoc.close(); } }

Output:

Explanation: In the above program, two sets of programs are created: sending data packets using the DatagramSocket class and one for receiving data packets using the DatagramSocket class. In the program for sending data packets using DatagramSocket class, an instance of a DatagramSocket class is created. Then the string is assigned to the variable strn. Then the internet IP address is assigned to a variable. Then, the datagram packet is created, and the send method of the DatagramSocket class is used to send the data packets to the destination IP address.

In the program for receiving data packets using DatagramSocket class, an instance of a DatagramSocket class is created. Then the instance of byte class is created. Then, the datagram packet is created, and the receive method of DatagramSocket class is used to receive the data packets to the source IP address.

Constructors

There are several constructors of the DatagramSocket class. They are:

DatagramSocket(): A datagram socket is constructed using the DatagramSocket() constructor, and it is bound to the available port on the local host machine.

DatagramSocket(int): A datagram socket is constructed using the DatagramSocket() constructor, and it is bind to the specified port on the local host machine.

DatagramSocket(int, InetAddress): A datagram socket is created using the DatagramSocket() constructor, and it is bound to the specified local internet address.

Example to Implement Java DatagramSocket

Below are the example mentioned:

Example

Demonstrate the usage of various methods of DatagramScoket class.

Code:

import java.io.IOException; import java.net.DatagramSocket; public class program { public static void main(String[] args) throws IOException { DatagramSocket sock = new DatagramSocket(1235); sock.setSendBufferSize(20); System.out.println("The buffer size sent is : " + sock.getSendBufferSize()); sock.setReceiveBufferSize(20); System.out.println("The buffer size received is : " + sock.getReceiveBufferSize()); sock.setReuseAddress(false); System.out.println("The SetReuse address is set to : " + sock.getReuseAddress()); sock.setBroadcast(true); System.out.println("The setBroadcast is set to : " + sock.getBroadcast()); sock.setTrafficClass(45); System.out.println("The Traffic class is set to : " + sock.getTrafficClass()); System.out.println("The Channel is set to : " + ((sock.getChannel()!=null)?sock.getChannel():"null")); sock.setDatagramSocketImplFactory(null); sock.close(); System.out.println("If the Socket Is Closed : " + sock.isClosed()); } }

Output:

Explanation: In the above program, a class called program is defined. Then an instance of the datagram socket class is created. The method setSendBufferSize() method of the datagram socket class is called, which sends the buffer size. Then the method getSendBufferSize() method of datagram socket class is called, which receives the buffer size.

Then the method setReceiveBufferSize() method of datagram socket class is called, and then the method getReceiveBufferSize() method of datagram socket class is called, which are used to send and receive the buffer sizes. Then the method setReuseAddress() method of datagram socket class is called, and then the method getReuseAddress() method of datagram socket class is called to send and receive the reused address.

Then the method setBroadcast() method of datagram socket class is called, and then the method getBroadcast() method of datagram socket class is called to set and get the broadcast. Then the method setTrafficClass() method of datagram socket class is called, and then the method getTrafficClass() method of datagram socket class is called to set and get the traffic classes.

Then the method getChannel() method of datagram socket class is called, which returns a true or false. Then the method close() method of datagram socket class is called to close the socket. Then the method isClosed() method of datagram socket class is called to check if the socket is closed or not, and it returns a true if the socket is closed otherwise false.

Conclusion

In this tutorial, we understand the concept of DatagramSocket class in Java through definition, the syntax of DatagramSocket class in Java, working of DatagramSocket class in Java through examples and their outputs.

Recommended Articles

This is a guide to Java DatagramSocket. Here we discuss an introduction to DatagramSocket along with constructors, syntax, working, and respective example. You can also go through our other related articles to learn more –

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