MySQL 如何提取列名和类型

为了提取列名和类型，请使用INFORMATION_SCHEMA.COLUMNS –

select concat(column_name,'=',data_type) as anyAliasName from information_schema.columns
where table_schema= yourDatabaseName and table_name= yourTableName;

让我们先创建一个表 –

mysql> create table DemoTable1812
     (
     Id int,
     FirstName varchar(20),
     Age int,
     isMarried boolean,
     status ENUM('ACTIVE','INACTIVE')
     );
Query OK, 0 rows affected (0.00 sec)

这是从MySQL中提取列名和类型的查询 –

mysql> select concat(column_name,'=',data_type) as COLUMNNAMEANDTYPE from information_schema.columns
     where table_schema= 'web' and table_name= 'DemoTable1812';

这将产生以下输出 –

+-------------------+
| COLUMNNAMEANDTYPE |
+-------------------+
| Id=int            |
| FirstName=varchar |
| Age=int           |
| isMarried=tinyint |
| status=enum       |
+-------------------+
5 rows in set (0.00 sec)

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