在一个语句中组合两个SQL查询

Question

如何将两个SQl查询合并为一个

在我的案例中3表名称

Remain_cotton，add_cotton，Sell_Table

 conn.Execute _
    "INSERT INTO Remain_Cotton(No_Of_Bottle) " & _
    "SELECT sum(No_Of_Bottle)" & _
    "FROM add_cotton Where Cateogry='Large'"

   conn.Execute _
    "INSERT INTO Remain_Cotton(Quantity) " & _
    "SELECT sum(Quantity)" & _
    "FROM Sell_Detail Where Cateogry='Large'"

我想要什么

     conn.Execute _
    "INSERT INTO Remain_Cotton(No_Of_Bottle)(Quantity) " & _
    "SELECT sum(No_OF_Bottle),sum(Quantity)" & _
    "FROM add_cotton,Sell_Detail Where Cateogry='Large'"

我问类似的问题之前但它的时间是一个SQL语句所以请不要将它与前一个连接

Answer 1

如果您使用的是SQL Server，则可以使用EXCEPT

Select Sum() From Table 1 Where Table=....** 
EXCEPT
Select Sum() From Table 2 Where Table 2=........**