How do you use sql desc?

DESC is a keyword in SQL commands that is used to retrieve the structure and attributes of a database table. The usage is as follows:

1. Retrieve the structure information of a table using the DESC command.
2. Give me the description of the table named table_name.
3. The table_name is the name of the table to be viewed.
4. Retrieve the structure information of a table using the DESCRIBE command (DESC is an alias of DESCIBE and can be used interchangeably).
5. Could you provide a description of the table named table_name?

After executing the DESC command, a result set will be returned containing information such as the table’s column names, data types, lengths, and whether they allow null values, as well as any primary keys, foreign keys, and other constraint information (if applicable).

It is important to note that the DESC command is a database-specific command, and different database systems may have some differences. In some database systems, such as MySQL, you can also use the SHOW command to retrieve table structure information.

SHOW COLUMNS FROM table_name;

This has the same function as the DESC command.