mysql數據庫查詢之對應庫對應表中的註釋信息查詢以及加字段查詢
除了上述方法外還可以加上字段查詢
使用mysql -uyourroot -pyourpassword 登錄數據庫
再使用use database；選中數據庫
就可以在mysql查詢表中包含有該字段中的行對應的註釋信息
其中‘WH_BU_ORDER_RELATION‘為數據庫表名稱（可以查詢其他表WH_BU_WORK_ORDER、WH_BU_EVENT）
其中‘order_relation_id‘數據庫查詢的字段名稱（可以查詢其他的字段apply_code、work_order_code等）
mysql> select* from information_schema.columns where table_name=‘WH_BU_ORDER_RELATION‘and COLUMN_NAME=‘order_relation_id‘；
+---------------+---------------+----------------------+-------------------+------------------+----------------+-------------+-----------+--------------------------+------------------------+-------------------+---------------+--------------------+-----------------+-------------+------------+-------+---------------------------------+-----------------------+
|TABLE_CATALOG | TABLE_SCHEMA |TABLE_NAME | COLUMN_NAME | ORDINAL_POSITION | COLUMN_DEFAULT |IS_NULLABLE | DATA_TYPE | CHARACTER_MAXIMUM_LENGTH | CHARACTER_OCTET_LENGTH |NUMERIC_PRECISION | NUMERIC_SCALE | CHARACTER_SET_NAME | COLLATION_NAME | COLUMN_TYPE | COLUMN_KEY | EXTRA |PRIVILEGES |COLUMN_COMMENT |
+---------------+---------------+----------------------+-------------------+------------------+----------------+-------------+-----------+--------------------------+------------------------+-------------------+---------------+--------------------+-----------------+-------------+------------+-------+---------------------------------+-----------------------+
|NULL | whitehole | WH_BU_ORDER_RELATION | order_relation_id| 1 | NULL | NO | varchar | 36 | 108 | NULL | NULL | utf8 | utf8_general_ci | varchar(36) |PRI | | select,insert,update,references | 申請單關系主鍵 |
|NULL | whitehole_dev |WH_BU_ORDER_RELATION | order_relation_id | 1 | NULL | NO | varchar | 36 | 108 | NULL | NULL | utf8 | utf8_general_ci | varchar(36)| PRI | | select,insert,update,references | 申請單關系主鍵 |
+---------------+---------------+----------------------+-------------------+------------------+----------------+-------------+-----------+--------------------------+------------------------+-------------------+---------------+--------------------+-----------------+-------------+------------+-------+---------------------------------+-----------------------+
2rows in set (0.00 sec)
mysql數據庫查詢之對應庫對應表中的註釋信息查詢以及加字段查詢