mysql中檢視所有表、表字段、表註釋、欄位註釋

檢視所有表和表註釋

select 
	TABLE_NAME, 
	TABLE_COMMENT 
from 
	INFORMATION_SCHEMA.Tables
where 
	table_schema = '某資料庫名稱'

INFORMATION_SCHEMA.Tables:
TABLE_SCHEMA，TABLE_NAME，CREATE_TIME，UPDATE_TIME，CHECK_TIME，TABLE_COMMENT

檢視所有欄位和欄位註釋

select 
	COLUMN_NAME，
	COLUMN_COMMENT 
from 
	INFORMATION_SCHEMA.Columns
where 
	table_name = '表名'  
	and table_schema='資料庫名'
 

INFORMATION_SCHEMA.Columns:
TABLE_SCHEMA，TABLE_NAME，COLUMN_NAME, COLUMN_TYPE, COLUMN_KEY