php - 如何在 mysql 中使用不同的选择子查询在表中插入行？

Question

我正在尝试在一个查询中向表中添加多行，并且我想要插入的一些值来自不同的表。我怎么做？这是我试图组合的 sql 语句的想法:

INSERT INTO 
    finalTable (oneID, twoID, oneName, twoNAme, formValue) 
VALUES 
     ('1','a', SELECT oneName FROM tableOne WHERE id = '1' , SELECT twoName FROM tableTwo WHERE id = 'a', 'some value'),
     ('2','b', SELECT oneName FROM tableOne WHERE id = '2' , SELECT twoName FROM tableTwo WHERE id = 'b' ,'some other value')

选择子查询不能以这种格式工作，我该如何重写语句？

Answer 1

尝试此解决方案。这可能适合您的场景。

插入 FinalTable(oneID，twoID，oneName，twoNAme，formValue)

 SELECT * FROM (SELECT T1.id,T2.Id,T1.oneName,T2.twoName, 'some value' FROM tableOne T1 LEFT OUTER JOIN tableTwo T2 ON T2.id>0 WHERE T1.id = '1' AND T2.id='a' LIMIT 1) A

 UNION
 SELECT * FROM (SELECT T1.id,T2.Id,T1.oneName,T2.twoName, 'some other value' FROM tableOne T1 LEFT OUTER JOIN tableTwo T2 ON T2.id>0 WHERE T1.id = '2' AND T2.id='b'  LIMIT 1) B