Solved

Turn a procedure to a user define function

Posted on 2014-11-12
3
151 Views
Last Modified: 2014-12-05
HI there how can I turn this procedure to a user define function?
DECLARE @ReturnCode int

declare @cmd sysname
declare @NumberKey sysname
set @NumberKey = 'B07-100001'
set @cmd = 'dir "E:\Adept Technologies\Documents\Building\'+@NumberKey+'\'+@NumberKey+'_Expired*.doc" /b'

exec @ReturnCode = master..xp_cmdshell @cmd, no_output

-- If @ReturnCode is 0, file exists
-- If @ReturnCode is 1, file does NOT exist
PRINT @ReturnCode

Open in new window

0
Comment
Question by:COHFL
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 66

Expert Comment

by:Jim Horn
ID: 40438035
User-defined Functions, 'Limitations and Restrictions' section, fifth bullet point, UDF's cannot call another stored procedure.

So, it appears the answer is 'You can't do that' if the requirements are to create a UDF with a call to xp_cmdshell
0
 
LVL 69

Accepted Solution

by:
Scott Pletcher earned 500 total points
ID: 40438188
XPs are an exception.  You should be fine:

CREATE FUNCTION Check_If_File_Exists (
    @NumberKey sysname
)
RETURNS int
AS
BEGIN
DECLARE @cmd nvarchar(4000)
DECLARE @return_code int
SET @cmd = 'dir /b "E:\Adept Technologies\Documents\Building\'+@NumberKey+'\'+@NumberKey+'_Expired*.doc"'
EXEC @return_code = master.sys.xp_cmdshell @cmd, NO_OUTPUT
RETURN @return_code
END --FUNCTION
0
 
LVL 69

Assisted Solution

by:Scott Pletcher
Scott Pletcher earned 500 total points
ID: 40438622
--Although personally I would make it generic enough to work for any file; it could
--still handle your current case by default:


CREATE FUNCTION Check_If_File_Exists (
     @NumberKey sysname = NULL,
     @FileName sysname = 'E:\Adept Technologies\Documents\Building\$NumberKey$\$NumberKey$_Expired*.doc'
 )
RETURNS int
AS
BEGIN
DECLARE @cmd nvarchar(4000)
DECLARE @return_code int
SET @cmd = 'dir /b "' + REPLACE(@FileName, '$NumberKey$', ISNULL(@NumberKey, '')) + '"'
EXEC @return_code = master.sys.xp_cmdshell @cmd, NO_OUTPUT
RETURN @return_code
END --FUNCTION
GO
0

Featured Post

PeopleSoft Has Never Been Easier

PeopleSoft Adoption Made Smooth & Simple!

On-The-Job Training Is made Intuitive & Easy With WalkMe's On-Screen Guidance Tool.  Claim Your Free WalkMe Account Now

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.
This post looks at MongoDB and MySQL, and covers high-level MongoDB strengths, weaknesses, features, and uses from the perspective of an SQL user.
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.
Viewers will learn how to use the SELECT statement in SQL and will be exposed to the many uses the SELECT statement has.

631 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question