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How to view the database in mysql

王林
王林Original
2023-05-14 09:06:3615124browse

MySQL is an extremely popular relational database management system. If you are using MySQL, then you need to know how to view the database so that you can manage your data and tables. In this article, we will explore how to view a database in MySQL.

  1. Use the SHOW command to view all databases

The SHOW command is a very useful command in MySQL that can be used to view databases and tables and their properties. If you want to view all databases, you can open a MySQL terminal and enter the following command:

SHOW DATABASES;

This will list all databases on your MySQL server.

  1. Use the SELECT command to view a specific database

To view a specific database, you can use the following command:

SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = 'your_database_name';

Please replace "your_database_name" with The actual database name you want to view.

  1. Use the DESCRIBE command to view the database structure

If you want to view the structure of the database and the structure of the table, you can use the DESCRIBE command. Here's an example:

DESCRIBE your_table_name;

Please replace "your_table_name" with the actual table name you want to view.

  1. Use the SHOW TABLES command to view the tables in the database

If you want to view all tables in a specific database, you can use the following command:

SHOW TABLES FROM your_database_name;

Please replace "your_database_name" with the actual database name you want to view.

  1. Use INFORMATION_SCHEMA to view database information

MySQL has a database called INFORMATION_SCHEMA, which can be used to view detailed information about the server and database. Here is an example to view all databases:

SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA;

You can also use INFORMATION_SCHEMA to view details for a specific database and table. Here's an example:

SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'your_database_name';

Please replace "your_database_name" with the actual database name you want to view.

Summary

These are the main ways to view a database in MySQL. You can use the SHOW command to view all databases, you can use the SELECT command to view a specific database, you can use the DESCRIBE command to view the database structure and table structure, you can use the SHOW TABLES command to view all tables in a specific database, and you can use INFORMATION_SCHEMA to view more detailed information.

After mastering these methods, you can better manage your MySQL database.

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