mysql數據查詢表名和註釋

• 查詢所有表名

  • select table_name from information_schema.tables where table_schema='數據庫名稱';

• 查詢數據庫表名的註釋:

  • select table_name 表名,TABLE_COMMENT 表註釋 from INFORMATION_SCHEMA.TABLES Where table_schema = '數據庫名稱' AND table_name ="表名"

• 查詢所有表名的表註釋:

  • select table_name 表名,TABLE_COMMENT 表註釋 from INFORMATION_SCHEMA.TABLES Where table_schema = '數據庫名稱' AND table_name IN (select table_name from information_schema.tables where table_schema='數據庫名稱'); 

• 查詢指定數據的所有表字段 及註釋等信息

  • SELECT
    a.table_name 表名,
    a.table_comment 表說明,
    b.COLUMN_NAME 字段名,
    b.column_comment 字段說明,
    b.column_type 字段類型,
    b.column_key 約束
    FROM
    information_schema. TABLES a
    LEFT JOIN information_schema.COLUMNS b ON a.table_name = b.TABLE_NAME
    WHERE
    a.table_schema = '數據庫名稱'
    ORDER BY
    a.table_name;