从多个 sources/tables 插入

Question

我有一个 table FinalTable 包含这些列：

name, lastName, pesel, position, id_operator

我想用其他 2 个 table 的值填充我的 FinalTable：

AAA - 此 table 包含姓名、姓氏、姓氏、位置等列
BBB - 这个 table 有列名称，id_operator，pesel

我想在 pesel 列加入 AAA 和 BBB

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;

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

我要插入一个连接查询：

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

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 3

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 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 sources/tables 插入

INSERT INTO from multiple sources/tables

sql

postgresql

insert-select

sql-insert