Need to implement the Business rule row by row

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Need to implement the Business rule row by row

Saravanan_tvr

SSCarpal Tunnel

Points: 4558
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September 10, 2012 at 10:14 pm

#143881

Hi,
How can we agonize,Row by row like cursor in SSIS, what controls will be using,
Here am reading data from excel , now I want to apply all client business logic's one row at a time, once completed i want to move second row..
Please let me know how can i perform.. ?

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Mackers SSCrazy Points: 2935 More actions · Answer 1

What sort of thing are you trying to do? Depending on the size row by row updates could be slow

I guess you have a few options but I think if the business logic is complicated I'd be tempted to dump the data into a staging table then run a stored proc

The other option would be to use a script component in the data flow

If the logic is simple (eg first three characters of a column) then I guess you could use a derived column in SSIS or a slow option could be puting a SQL function on the import table 😀

Mack

Saravanan_tvr SSCarpal Tunnel Points: 4558 More actions · Answer 2

Yes, I decided to make as Sp and calling directly from Import tool...

Jeff Moden SSC Guru Points: 1004356 More actions · Answer 3

Saravanan_tvr (9/10/2012)
now I want to apply all client business logic's one row at a time, once completed i want to move second row..

Yes, I decided to make as Sp and calling directly from Import tool...

Did you end up using somme form of loop for this? If so, this is going to be much slower than writing a set based validation routine. Why are you insisting on the use of RBAR?

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

Change is inevitable... Change for the better is not.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

Saravanan_tvr SSCarpal Tunnel Points: 4558 More actions · Answer 4

Yes, We have a cross validations with 10 Master table then Update and Insertions based on the Logic. from excel one row at a time. as per the client requirements ..

Sean Lange SSC Guru Points: 286590 More actions · Answer 5

Saravanan_tvr (9/13/2012)
Yes, We have a cross validations with 10 Master table then Update and Insertions based on the Logic. from excel one row at a time. as per the client requirements ..

That does not sound like a reason to this RBAR. You can do all that using MERGE and OUTPUT.

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