MySQL 如何正确使用 INSERT INTO SELECT 避免 Error 1064

首先，让我们创建一个表 –

mysql> create table DemoTable1
    -> (
    -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,
    -> FirstName varchar(100)
    -> );
Query OK, 0 rows affected (0.57 sec)

使用 insert 命令向表中插入一些记录 –

mysql> insert into DemoTable1(FirstName) values('John');
Query OK, 1 row affected (0.18 sec)

mysql> insert into DemoTable1(FirstName) values('Chris');
Query OK, 1 row affected (0.13 sec)

使用 select 语句从表中显示所有记录 –

mysql> select *from DemoTable1;

这将产生以下输出 –

+----+-----------+
| Id | FirstName |
+----+-----------+
|  1 | John      |
|  2 | Chris     |
+----+-----------+
2 rows in set (0.00 sec)

现在创建第二个表 –

mysql> create table DemoTable2
    -> (
    -> CustomerId int,
    -> CustomerName varchar(100)
    -> );
Query OK, 0 rows affected (0.43 sec)

现在您可以使用 INSERT INTO SELECT 命令向上述表中插入一些记录 –

mysql> insert into DemoTable2(CustomerId,CustomerName)
    -> select Id,FirstName from DemoTable1;
Query OK, 2 rows affected (0.17 sec)
Records: 2 Duplicates: 0 Warnings: 0

使用 select 语句从表中显示所有记录 –

mysql> select *from DemoTable2;

这将产生以下输出 –

+------------+--------------+
| CustomerId | CustomerName |
+------------+--------------+
|          1 | John         |
|          2 | Chris        |
+------------+--------------+
2 rows in set (0.00 sec)

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