让我们首先创建一个表-
mysql> create table DemoTable1 -> ( -> StudentId int, -> StudentName varchar(20) -> );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable1 values(10,'John'); mysql> insert into DemoTable1 values(11,'Chris');
使用select语句显示表中的所有记录-
mysql> select *from DemoTable1;
输出结果
+-----------+-------------+ | StudentId | StudentName | +-----------+-------------+ | 10 | John | | 11 | Chris | +-----------+-------------+ 2 rows in set (0.00 sec)
以下是创建第二个表的查询-
mysql> create table DemoTable2 -> ( -> CustomerId int, -> CustomerName varchar(100) -> );
这是查询从一个表中的SELECT字段并插入到另一个表中的查询-
mysql> insert into DemoTable2(CustomerId,CustomerName) select StudentId,StudentName from DemoTable1 where StudentId=11; Records: 1 Duplicates: 0 Warnings: 0
让我们再次检查第二个表中的所有记录-
mysql> select *from DemoTable2;
输出结果
+------------+--------------+ | CustomerId | CustomerName | +------------+--------------+ | 11 | Chris | +------------+--------------+ 1 row in set (0.00 sec)