SQL Query Error

Question

0.00/5 (No votes)

See more:

Help ,

@exist bit output,
@SQL1 VarChar(max)

AS
DECLARE @query nvarchar(4000)
BEGIN
       
 @query =' if not exists( ' + @SQL1 + ' )
     Begin
        set '+ @exist=0 +'
      End
else
     Begin
        set'+ @exist=1 +'
        
     End '
EXEC(@query )
END

Error:Msg 134, Level 15, State 1, Procedure usp_chkMasterExist, Line 10
The variable name '@sql1' has already been declared. Variable names must be unique within a query batch or stored procedure.
Msg 102, Level 15, State 1, Procedure usp_chkMasterExist, Line 22
Incorrect syntax near 'END'.

Posted 27-Dec-10 19:32pm

NITHIN INDIA

Updated 27-Dec-10 20:20pm

Dalek Dave

v3

Add a Solution

Comments

Dalek Dave 28-Dec-10 2:20am

Edited for Readability.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Al-Farooque Shubho · Answer 1 · 2010-12-27T19:37:00

Solution 1

There may be several errors in your SQL, but the error you mentioned is due to the fact that, the two variables @sql1 and @SQL1 are being considered as same by the SQL Server (Despite the fact that one is upper case and another is lower case).

Try renaming the @sql1 (Say, @sql2)

Posted 27-Dec-10 19:37pm

Al-Farooque Shubho

Comments

Dalek Dave 28-Dec-10 2:20am

Good Answer.

Igor Kushnarev · Answer 2 · 2010-12-27T19:53:00

Solution 2

Hm, strange procedure...
First, you have the argument and the variable with same names.
Second, you should use 'SET' to assign a variable:

set @sql = ...

Third, your @exist = ... must be inside the string

I would recommend you to read some tutorials about T-SQL

Posted 27-Dec-10 19:53pm

Igor Kushnarev

Comments

Dalek Dave 28-Dec-10 2:20am

Good Advice.