Commands to view tables in mysql

Commands to view MySQL table information include: DESC: Displays the schema of the table, including column information. SHOW COLUMNS: Provides DESC-like information, including comments and character sets. SHOW CREATE TABLE: Displays the SQL statement that creates the table. EXPLAIN: Displays the query execution plan. INFORMATION_SCHEMA: Contains information about database objects.

Commands to view the MySQL table

To view the information of the MySQL table, you can use the following command:

1. DESC

DESC table_name

This command displays the schema of the table, including column names, data types, constraints, and default values and other information.

2. SHOW COLUMNS

SHOW COLUMNS FROM table_name

This command is provided with the DESC command Similar information, but also includes table comments and character set information.

3. SHOW CREATE TABLE

SHOW CREATE TABLE table_name

This command displays the SQL statement that creates the table. It is useful for understanding the structure and setup of tables.

4. EXPLAIN

EXPLAIN SELECT * FROM table_name

This command displays the query execution plan, including how the query will be used Tables and indexes. It helps to understand the performance bottlenecks of queries.

5. INFORMATION_SCHEMA

The INFORMATION_SCHEMA database contains metadata about objects in the MySQL database. You can use the following query to view the table's information:

<code>SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'table_name';
SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'table_name';</code>

The above is the detailed content of Commands to view tables in mysql. For more information, please follow other related articles on the PHP Chinese website!