Chapter 13 SQL Statements

13.8 Utility Statements实用工具语句

13.8.1 DESCRIBE ~~Statement~~语句
13.8.2 EXPLAIN ~~Statement~~语句
13.8.3 HELP ~~Statement~~语句
13.8.4 USE ~~Statement~~语句

13.8.1 DESCRIBE Statement

13.8.2 EXPLAIN Statement

13.8.3 HELP Statement

13.8.4 USE Statement