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In this tutorial, our goal is to explore the concept of multiple primary keys for a table in MySQL. Many times, businesses and organizations have to assign certain columns as primary keys. This primary key has multiple uses and reasons to b...

In this tutorial, we aim to explore how to display foreign keys for tables and columns in MySQL. The type of key that references a primary key, also known as the primary key of another table, is called a foreign key. Understanding the forei...

Sometimes, you have to select first N rows of MySQL database according to your project requirements. n The value of varies according to the requirement; it can be TOP 1 row or TOP 30 rows. We will learn how to select top N rows using the cl...

Creating a copy of an existing database is known as the MySQL Clone method. Cloning involves creating a copy of the table structure, constraints, functions, procedures, triggers, and all functionality associated with the table in one go. Th...

As a database administrator, there are certain situations and circumstances where you have to search the entire database for the occurrence of a pattern or a string. For example, how many employees use Gmail accounts in your office, or you...

Today's topic is about duplicating rows in MySQL database. We will learn how to copy a row and paste it into the same table with auto increment ID and custom ID. We will also see how to copy multiple fields from multiple rows of one table a...

In this article, we will learn about schema and database and the basic difference between them. schema and database are two of the most important terms in Database Management Systems (DBMS). Every organization, school, college and other ins...

Remote connectivity is required when we work in a distributed environment. This tutorial is a step-by-step guide on how to connect to a remote MySQL database using the command line. Connect to a remote MySQL database using the command line...

This tutorial shows you how to reset the auto increment in a MySQL table. Most businesses and organizations using MySQL need to insert values ​​into multiple tables simultaneously. While it is not possible to make all fields of the inse...

This tutorial explains the refresh permissions operation and its implementation with examples. Implementing refresh permissions in MySQL MySQL implements user management through grant tables to ensure security and access control in the serv...

In this tutorial, we aim to explore how to set NULL the value in MySQL. If there is no value, then the specific table field in MySQL has to be updated NULL . This NULL value addition helps in data storage, accessibility, and analysis. You m...

We will learn about different ways to copy data from one database to another. This strategy of replicating data 数据复制 is very useful in . Due to data replication, data can be served to different servers and made available to all user...

This tutorial aims to understand how to shuffle or sort the values ​​or records of a table in MySQL. Most businesses and organizations that use MySQL for data analysis or visualization need to sort different table values ​​of their...

MySQL provides a variety of convenient data types for storing expected input into its database. Knowing the correct data type to use to store special data is key to ensuring an optimized and efficient database. This tutorial explains the fo...

This tutorial article will introduce two CSV methods to import data from a comma separated value ( ) file into a MySQL database and insert it into a table. We will look at different ways to import CSV files into MySQL. This task can be done...