Question

我需要执行以下操作：

将INERT INTO表1（field1，field2，field3，field4，field5）值（“ customvalue1”，SELECT field2，field3，field4，field5 FROM table2 WHERE condition = true）

有办法吗？最好的方法是什么？

Answer 1

您可以使用select语句定义常量值：

INSERT INTO table1 (field1,field2,field3,field4,field5) 
   SELECT "customvalue1", field2, field3, field4, field5 
   FROM table2 
   WHERE condition=true;

Answer 2

这称为根据条件将数据从一个表插入到另一表

create table table1
(id int,
name varchar(100)
)
;
create table table2
(id int,
 name varchar(100),
 salary double(10,2)
)
;
insert into table1 values(1,'A'),(2,'B'),(3,'C');

insert into table2(id,name,salary) 
select id,name,6000 from table1 where table1.name='A'

http://sqlfiddle.com/#!9/8b30fb/1

Answer 3

我认为这对您有帮助

  INSERT INTO firsttable (field1,field2,field3,field4,field5) 
   SELECT "customvalue1", field2, field3, field4, field5 
   FROM secondtable
   WHERE condition;

MySQL INSERT INTO…VALUE和SELECT与几个字段

3 个答案: