Question

我有一个带有这些列的表FinalTable：

name, lastName, pesel, position, id_operator

我想用另外2个表中的值填充我的FinalTable：

AAA-该表具有诸如name，lastName，pesel，position之类的列
BBB-该表具有列名称，id_operator，比塞尔

我想加入AAA列上的BBB和pesel

insert into FinalTable (name, lastName, pesel, position, id_operator)
    select 
        name, lastName, pesel, position, 
        (select id_operator from BBB b where b.pesel = a.pesel) 
    from 
        AAA a;

该怎么做？我想将最后一列id_operator设置为BBB中的值。上面的SQL查询不正确。

Answer 1

我要插入一个联接查询：

INSERT INTO FinalTable  (name, lastName, pesel, position, id_operator)
SELECT a.name, a.lastName, a.pesel, a.position, b.id_operator
FROM   AAA a
JOIN   BBB b ON pesel = a.pesel;

Answer 2

insert into FinalTable  (name, lastName, pesel, position, id_operator)
select name, lastName, pesel, position, id_operator from AAA a join BBB b on a.pesel=b.pesel;

Answer 3

在两个表之间使用join

insert into FinalTable  (name, lastName, pesel, position, id_operator)
select name, lastName, pesel, position, id_operator    
from AAA a join BBB b on b.pesel = a.pesel

Answer 4

您可以使用内部联接

insert into FinalTable  (name, lastName, pesel, position, id_operator)
select  a.name, a.lastName, a.pesel, a.position, b.id_operator 
from AAA a
INNER JOIN BBB b ON  b.pesel = a.pesel 
;

从多个来源/表插入

4 个答案: