如何查看mysql客户端的字段注释？

Question

我想看到个别领域的评论。通常是我期望从“描述”参数中得到的东西。

mysql> describe metrics;
+-------+---------------------+------+-----+---------+----------------+
| Field | Type                | Null | Key | Default | Extra          |
+-------+---------------------+------+-----+---------+----------------+
| id    | int(10) unsigned    | NO   | PRI | NULL    | auto_increment |
| ty    | int(10) unsigned    | NO   |     | NULL    |                |
| t     | bigint(20) unsigned | NO   |     | NULL    |                |
| s     | int(10) unsigned    | NO   |     | 60000   |                |
| e     | int(10) unsigned    | NO   |     | NULL    |                |
| c     | int(10) unsigned    | NO   |     | NULL    |                |
+-------+---------------------+------+-----+---------+----------------+

Answer 1

show full columns from <table_name>

这是输出：

| Field | Type | Collation | Null | Key | Default | Extra | Privileges | Comment

我希望这对您有用

Answer 2

此查询将为您提供比 describe 语句更多的信息：

SELECT * 
FROM information_schema.columns 
WHERE table_name = 'metrics'
AND table_schema = '...' -- Optionally, filter the schema as well, to avoid conflicts

Answer 3

总是你可以使用：

show create table <tablename>