Stored Procedure assign the calculated value to variable

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Please check the stored procedure where I did the mistake? I am trying to assign the calculated value to variable and I am not sure is it correct or no.

SQL

Alter Proc [dbo].[FindAnnualLeave1]
@Empid varchar(20)
as
Declare @AnnualPending int

Select @AnnualPending =(select (0.0821917808219178) *
DATEDIFF(d, e.doj,GETDATE())- l.Leaves where l.EmpLeaveCode='Annual')

 From EmployeeLeaves l
inner join EmployeeMaster e on l.EmpID=e.EmpID
where l.EmpID=e.EmpID
return @AnnualPending
Go

nothing returns this query , I want to show this variable to asp.net lable once the command button clicks. thanks

Posted 9-Nov-14 3:05am

tastini

Updated 9-Nov-14 3:15am

v2

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Kornfeld Eliyahu Peter 9-Nov-14 9:10am

How do you try to check the return value?

tastini 9-Nov-14 9:14am

I call this procedure from asp , and tried only select statement from sql

Maciej Los 9-Nov-14 16:29pm

Not clear!

1 solution

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Kornfeld Eliyahu Peter · Answer 1 · 2014-11-09T03:18:00

Solution 1

If you try to get the value from other parts of the SQL you have to run this SP like this:

SQL

DECLARE @RV AS INT
EXEC @RV = FindAnnualLeave1(1)
SELECT @RV

From code you should use the ExecuteScalar method: http://msdn.microsoft.com/en-us/library/37hwc7kt.aspx[^]
---
An other option is to do SELECT @AnnualPending instead of RETURN @AnnualPending, but it mostly depends on your design...

SQL

Alter Proc [dbo].[FindAnnualLeave1]
@Empid varchar(20)
as
Declare @AnnualPending int

Select @AnnualPending =(select (0.0821917808219178) *
DATEDIFF(d, e.doj,GETDATE())- l.Leaves where l.EmpLeaveCode='Annual')

 From EmployeeLeaves l
inner join EmployeeMaster e on l.EmpID=e.EmpID
where l.EmpID=e.EmpID
select @AnnualPending
Go

Posted 9-Nov-14 3:18am

Kornfeld Eliyahu Peter

Updated 9-Nov-14 3:25am

v2

Comments

tastini 9-Nov-14 9:23am

I am sorry to ask you , what I have to change in my query? its the same query am running except one that you mention (return to select) I tried that before but I got no column message. please edit it for me. just want to learn too.

Kornfeld Eliyahu Peter 9-Nov-14 9:25am

See update...

tastini 9-Nov-14 9:27am

i am getting null value using that query.

Kornfeld Eliyahu Peter 9-Nov-14 9:29am

Check the value of your select without the SP...

tastini 9-Nov-14 9:36am

No Column Name "NULL"

Kornfeld Eliyahu Peter 9-Nov-14 9:39am

NULL is not a column name!!! It's a special value of SQL identifies no-value (missing value)...
Run this query to see what the value it produces...
Select (select (0.0821917808219178) *
DATEDIFF(d, e.doj,GETDATE())- l.Leaves where l.EmpLeaveCode='Annual')

From EmployeeLeaves l
inner join EmployeeMaster e on l.EmpID=e.EmpID
where l.EmpID=e.EmpID

tastini 9-Nov-14 9:41am

5.0958904109589036 this is the value showing if no variable use.