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ALTER statement in MySQL

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Hello and welcome everyone. In this article, we will learn about the ALTER table statement in MySQL. Let’s go. MongoDB with .Net Core course link => https://www.udemy.com/mongodb-with-net-core-sagar-jaybhay/ C# basic course click on: https://www.udemy.com/learn-csharp-with-sagar-jaybhay/  Web API 2- .Net Core In depth In 5 Hours click on: https://www.udemy.com/web-api-2-net-core-in-depth-in-5-hrs-with-sagar-jaybhay/ MySQL ALTER command is used to modify the table, view an existing database. When you have completed your database design and after that, you realize some of the information was left out when creating a database. You want to change without losing existing data, and then you can change data using ALTER command. MySQL ALTER command is used to add a column with an existing table, add multiple columns, drop a column, modify a column, rename a column, and rename the table. ALTER command also used to add and drop constraints on the existing table. N
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Order By Clause in MySQL

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Hello and welcome everyone. In this article, we will learn about the Order By Clause in MySQL. Let’s go. MongoDB with .Net Core course link => https://www.udemy.com/mongodb-with-net-core-sagar-jaybhay/ C# basic course click on: https://www.udemy.com/learn-csharp-with-sagar-jaybhay/  Web API 2- .Net Core In depth In 5 Hours click on: https://www.udemy.com/web-api-2-net-core-in-depth-in-5-hrs-with-sagar-jaybhay/ MySQL Order by clause is used to sort the records or data in ascending or descending order. Order by clause allows us to sort records or data by a single column or multiple columns in ascending or descending order. There are two key using in Order by clause:          ASC: - sorting data or records by ascending order.          DESC: - sorting data or records by descending order. Syntax:          SELECT column_name_1, column_name_2, …          FROM table_name          WHERE condition ORDER BY column_name_1 [ ASC | DESC ], column_name_2 [ ASC
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MySQL Constraint – UNIQUE

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C# basic course click on: https://www.udemy.com/learn-csharp-with-sagar-jaybhay/  Web API 2- .Net Core In depth In 5 Hours click on: https://www.udemy.com/web-api-2-net-core-in-depth-in-5-hrs-with-sagar-jaybhay/ Hello everyone in the previous article we learn about MySQL Constraint – NOT NULL and in this article, we will learn UNIQUE constraint with example. Let’s go. What is a UNIQUE key? The MySQL UNIQUE key used to specify that you don’t want to see duplicate data in a given field means all the values in a column are different. In MySQL, UNIQUE key is implemented through a constraint that is called UNIQUE Constraint. MongoDB with .Net Core course link => https://www.udemy.com/mongodb-with-net-core-sagar-jaybhay/ What is a UNIQUE Constraint? MySQL UNIQUE constraint does not allow inserting a duplicate value in a column and each data value of a column that has the unique value. If you add to insert an already existing duplicate value in the unique colum
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