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Need to implement the Business rule row by...
Need to implement the Business rule row by row
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Saravanan_tvr
Saravanan_tvr
Posted Monday, September 10, 2012 10:14 PM
SSC Veteran
Group: General Forum Members
Last Login: Thursday, April 25, 2013 7:04 AM
Points: 269,
Visits: 1,110
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.. ?
Many Thanks!
S.saravanan
“I am a slow walker, but I never walk backwards-
Abraham Lincoln”
Post #1357127
Mackers
Mackers
Posted Wednesday, September 12, 2012 1:52 AM
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Group: General Forum Members
Last Login: Tuesday, May 21, 2013 3:16 AM
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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
Post #1357826
Saravanan_tvr
Saravanan_tvr
Posted Wednesday, September 12, 2012 4:30 AM
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Last Login: Thursday, April 25, 2013 7:04 AM
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Yes, I decided to make as Sp and calling directly from Import tool...
Many Thanks!
S.saravanan
“I am a slow walker, but I never walk backwards-
Abraham Lincoln”
Post #1357880
Jeff Moden
Jeff Moden
Posted Wednesday, September 12, 2012 8:42 PM
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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 "
R
ow-
B
y-
A
gonizing-
R
ow".
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."
For better, quicker answers on T-SQL questions, click on the following...
http://www.sqlservercentral.com/articles/Best+Practices/61537/
For better answers on performance questions, click on the following...
http://www.sqlservercentral.com/articles/SQLServerCentral/66909/
Post #1358305
Saravanan_tvr
Saravanan_tvr
Posted Thursday, September 13, 2012 10:56 PM
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Last Login: Thursday, April 25, 2013 7:04 AM
Points: 269,
Visits: 1,110
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 ..
Many Thanks!
S.saravanan
“I am a slow walker, but I never walk backwards-
Abraham Lincoln”
Post #1359041
Sean Lange
Sean Lange
Posted Friday, September 14, 2012 8:00 AM
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Last Login: Yesterday @ 2:33 PM
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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.
_______________________________________________________________
Need help? Help us help you.
Read the article at
http://www.sqlservercentral.com/articles/Best+Practices/61537/
for best practices on asking questions.
Need to split a string? Try Jeff Moden's
splitter
.
Cross Tabs and Pivots, Part 1 – Converting Rows to Columns
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs
Post #1359296
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