mysql中查询表和字段注释
MySQL [moneta]> SELECT table_name 表名,table_comment 表说明 FROM information_schema.TABLES WHERE table_schema = "moneta" ORDER BY table_name;+--------------------+--------------------------+
| 表名 | 表说明 |
+--------------------+--------------------------+
| biz_rule | 业务规则表 |
| biz_rule_action | 业务规则动作表 |
| biz_rule_condition | 业务规则条件表 |
| buyer_tag | 买家标签表 |
| query | 用户query表 |
| store_rule_group | 店铺业务规则组表 |
+--------------------+--------------------------+
6 rows in set (0.00 sec)
查询某表字段注释
SQL:
select COLUMN_NAME 字段名, column_comment 字段说明, column_type 字段类型,column_key 约束 from information_schema.columns where table_schema = "moneta" and table_name = "query";
MySQL [moneta]> select COLUMN_NAME 字段名, column_comment 字段说明, column_type 字段类型,column_key 约束 from information_schema.columns -> where table_schema = "moneta" and table_name = "query";
+----------------+--------------+------------------+--------+
| 字段名 | 字段说明 | 字段类型 | 约束 |
+----------------+--------------+------------------+--------+
| id | 主键 | int(10) unsigned | PRI |
| store_id | 店铺id | int(11) | MUL |
| buyer_nick | 买家昵称 | varchar(128) | MUL |
| assistant_nick | 客服昵称 | varchar(64) | |
| query | query内容 | text | |
| query_time | query时间 | datetime | MUL |
| create_time | 创建时间 | datetime | |
| update_time | 修改时间 | datetime | |
+----------------+--------------+------------------+--------+
8 rows in set (0.00 sec)
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