如何在MySQL中查找列名？
为此，您可以使用SHOWCOLUMNS或INFORMATION_SCHEMA.COLUMN。
让我们首先创建一个表-
mysql> create table DemoTable603
(
ClientId int NOT NULL AUTO_INCREMENT,
ClientName varchar(100),
ClientAge int,
ClientAddress varchar(100),
ClientCountryName varchar(100),
ClientEducationDetails varchar(200),
PRIMARY KEY(ClientId)
);案例1 - 使用SHOW命令
这是查找MySQL中列名称的查询-
mysql> SHOW COLUMNS FROM DemoTable603;
这将产生以下输出-
+------------------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +------------------------+--------------+------+-----+---------+----------------+ | ClientId | int(11) | NO | PRI | NULL | auto_increment | | ClientName | varchar(100) | YES | | NULL | | | ClientAge | int(11) | YES | | NULL | | | ClientAddress | varchar(100) | YES | | NULL | | | ClientCountryName | varchar(100) | YES | | NULL | | | ClientEducationDetails | varchar(200) | YES | | NULL | | +------------------------+--------------+------+-----+---------+----------------+ 6 rows in set (0.00 sec)
案例2-使用information_schema.column-
mysql> select column_name from information_schema.columns where table_schema='web' and table_name='DemoTable603';
这将产生以下输出-
+------------------------+ | COLUMN_NAME | +------------------------+ | ClientAddress | | ClientAge | | ClientCountryName | | ClientEducationDetails | | ClientId | | ClientName | +------------------------+ 6 rows in set (0.00 sec)
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