如何计算牙医总数 [英] How to Count Total Dentist

问题描述

听到我的查询在下面给出 -

hear is my Query Given Below -

select  @UnderPartA as UnderPartA
       ,@UnderPartB as UnderPartB
       ,@DentalHysenist as DentalHysenist
       ,@DentalMachenist as DentalMachenist
       ,@UnderPartA + @UnderPartB as TotalDEntist

它不起作用我想知道如何计算Total Dentist

and it is not working i want to know how to count Total Dentist

推荐答案

您无法在查询中定义变量。您需要在使用之前使用声明语句并定义变量



请尝试使用此选项

选择@UnderPartA作为UnderPartA ，@ UnderPartB作为UnderPartB，（UnderPartA + UnderPartB）作为TotalDEntist



或者，

You cannot define variables in a query. You need to use declare statements and define variables before using them

Try this instead
select @UnderPartA as UnderPartA,@UnderPartB as UnderPartB, (UnderPartA + UnderPartB) as TotalDEntist

Alternately,

Declare @UnderPartA INT, 
Declare @UnderPartB INT, 
Declare @SumTot INT 
Declare @DentalHysenist INT

select @UnderPartA as UnderPartA,@UnderPartB as UnderPartB,@DentalHysenist as DentalHysenist,@DentalMachenist as DentalMachenist,
@SumTot = @UnderPartA + @UnderPartB;
PRINT @SumTot

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