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Trading in xp_cmdshell for SQLCLR (Part 2) - Export Data to Flat Files


Trading in xp_cmdshell for SQLCLR (Part 2) - Export Data to Flat Files

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marek.konecki
marek.konecki
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Dear Jonathan,
Can I run this SP (a bit changed to create XML file and return 0 if file is exorted w/o errors or 1 if not) in my transaction to check if the file was successfully exported and update Export flag if yes? The code would look like this:

BEGIN TRAN

some sql selects & inserts preparing the data to export and placing in @XML variable

DECLARE @ID INT
INSERT TrackingTable (XML, Export) VALUES (@XML,0)
SELECT @ID = SCOPE_IDENTITY()

DECLARE @CMD VARCHAR(50), @Result BIT
SET @CMD = 'SELECT XML FROM TrackingTable WHERE ID = ' + CAST(@ID AS VARCHAR)
EXECUTE @Result = [dbo].[WriteResultsToCsvFile] @CMD , 'SomeFileName.xml'

IF(@Result = 1)
BEGIN
ROLLBACK TRAN
RETURN 1 -- error code
END

-- file is exported so update the status
UPDTE TrackingTable SET EXPORT = 1 WHERE ID = ' + CAST(@ID AS VARCHAR)

COMMIT TRAN

Are there any disadvantages of this approach?

Thanks in advance,
Marek
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