列乘以select语句MSSQL [英] Column multiply with select statement MSSQL

问题描述

Need multiply two column with select statement MSSQL

错误是列数量2不存在



我的尝试：

Error is column quantity2 not exist

What I have tried:

INSERT INTO dbo.table1 (quantity1, quantity2, result)

SELECT quantity1,

(select kolicina as quantity2 from dbo.radni_nalog_roba where id_fakture=(select max(id) from dbo.radni_nalog_lista)),

(quantuty1*quantity2) as ukupno

FROM dbo.table2

推荐答案

在不知道你的表格和它们之间的相互作用的情况下，我不能具体而准确。但你想要做的是加入。

尝试

Without knowing your tables and the interaction between them, I can't be specific and accurate. But what you want to do is a JOIN.
Try

SELECT a.quantity1, b.quantity2 , (a.quantuty1 * b.quantity2) AS ukupno
FROM dbo.table2 a
JOIN (SELECT kolicina AS quantity2 FROM dbo.radni_nalog_roba 
      WHERE id_fakture = (SELECT MAX(id) FROM dbo.radni_nalog_lista)) b
ON a.ID = b.id_fakture

或类似。

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