SQL Stored Procedure Problem

Question

1.00/5 (2 votes)

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Dear All,

I have two Database
1.ta
2.Theorem_Analytics_database.
In ta Database, Client_Master Table
Client_ID Client_Name Client_Alias
4 Theorem Analytics ta2

In Theorem_Analytics_database , User_Master Table
User_ID User_Name User_Password Email Client_ID
1 Admin user123 admin@gmail.com 4

I have a stored Procedure in ta
Where I will fetch all information of client from client_master.
If client name is not match with Client ,display invalid client.
If client name is match ,then it will create dynamically database from client_name like Theorem_ Analytics_database,
Then it will select Email from User_Master from Theorem_Analytics_database, and compare if email is equal with admin@gmail.com, a messageas output display’Success’ else ‘unsuccess.’

PLEASE Help me.
This is my procedure.

SQL

ALTER PROCEDURE [dbo].[LoginProcedure]

(

@Username VARCHAR(50)

,@password VARCHAR(50)

,@Client varchar(50)

,@Response varchar(max) out

)

AS

declare @Client_ID int;

declare @Client_Name varchar(100);

BEGIN TRY

--Get Client Information from Client_Master

  Select @Client_ID=Client_ID,@Client_Name=Client_Name FROM Client_Master WHERE Client_Alias= @Client or Client_Name=@Client;

 

  IF @Client_ID is null

        SET @Response='Invalid Client Name'

  ELSE

    BEGIN

      declare @NewDB varchar(MAX); 

      SET  @NewDB=Replace(@Client_Name,' ','_')+'_database';

set @NewDB='['+@NewDB+'].dbo.User_Master';

 

declare @sqlQuery varchar(MAX),@EMAIL VARCHAR(MAX)

SET @EMAIL='User_Email'

set @sqlQuery='select '+@EMAIL+' AS COL1 from '+ @NewDB+' where User_Name=''admin''';
exec (@sqlQuery);
if @EMAIL='admin@gmail.com'
 SET @Response = 'success'+@EMAIL;
else
SET @Response = 'UNsuccess'+@EMAIL;
--SET @Response = @EMAIL;

END

END TRY

BEGIN CATCH

SELECT ERROR_NUMBER() AS ErrorNumber,ERROR_MESSAGE() as ERRORMSG

END CATCH

Posted 27-Jul-13 23:37pm

connect2manas

Updated 28-Jul-13 9:34am

Maciej Los

v2

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CHill60 28-Jul-13 17:10pm

Please help you with what? Explain your problem

1 solution

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Raja Sekhar S · Answer 1 · 2013-07-28T21:55:00

Instead of Using exec(@SqlQuery)
Use this:

SQL

execute sp_executesql @sqlQuery, N'@EMAIL VARCHAR(MAX) OUTPUT', @EMAIL = @EMAIL output;

SQL

ALTER PROCEDURE [dbo].[LoginProcedure]
 @Username VARCHAR(50),
 @password VARCHAR(50),
 @Client varchar(50),
 @Response varchar(max) out
 
AS
Declare @Client_ID int, @Client_Name varchar(100);
declare @sqlQuery varchar(MAX),@EMAIL VARCHAR(MAX)
declare @NewDB varchar(MAX),@UserEmail varchar(100) 
 
BEGIN TRY
 
--Get Client Information from Client_Master

  Select @Client_ID=Client_ID,@Client_Name=Client_Name FROM Client_Master WHERE Client_Alias= @Client or Client_Name=@Client;
 
   IF @Client_ID is null
        SET @Response='Invalid Client Name'
  ELSE
  BEGIN
      
      SET  @NewDB=Replace(@Client_Name,' ','_')+'_database';
	  set @NewDB='['+@NewDB+'].dbo.User_Master';
	  SET @EMAIL='User_Email'
	  set @sqlQuery='select '+@EMAIL+' AS COL1 from '+ @NewDB+' where User_Name=''admin''';
	  Execute sp_executesql @sqlQuery, N'@EMAIL VARCHAR(MAX) OUTPUT', @EMAIL = @EMAIL output;

	  If @EMAIL='admin@gmail.com'
		  SET @Response = 'success'+@EMAIL;
	  Else
		  SET @EMAIL = 'UNsuccess'+@EMAIL;
--SET @Response = @EMAIL;
 END
END TRY
 
BEGIN CATCH
	SELECT ERROR_NUMBER() AS ErrorNumber,ERROR_MESSAGE() as ERRORMSG
END CATCH

Hope this Helps...