Hi
(I am new to SSIS and I am not that much of a programer. )
Why is'nt there a decent method in SSIS to calculate a HASH function or CRC function for a given set of columns?
Every time I try to use one or other fucntionality I get an other dead end!
Events:
Started with CRC function, if I wanted to use then I have to create my own Custom Script Transformation,
then created the HASH function from the below weblink
http://www.sqlservercentral.com/articles/Integration+Services+%28SSIS%29/69766/
very nice article very helpful, only when I implemented it, I came to know SSIS has issues with Buffer and hash gets re-calculated if it exceeds over 10,000 rows. (I know programming but, I am not an hard-core developer) its hard for audience like us to use SSIS effectively when it claims to me a "ETL" tool to load data warehouse
I also came across 3rd party tools which claims and do good job on the Change data capture,
* SSISmultiplehash (3rd)
* Checksum transformation konesans (3rd)
but again these are 3rd party tools, and once there comes an issue we are kinda stuck.
Can't Microsoft SSIS developers look into this and come up with their own GUI HASH or CRC trasformation which is user friendly?Since this is a very fundamental buildingblock for any Data warehouse process.
bottom Line, I completed the steps from the article below,
http://www.sqlservercentral.com/articles/Integration+Services+%28SSIS%29/69766/
and I am keep getting issues with the different HASH values for same rows.This makes me not to trust that process any more, since it might mess the data warehouse load. I was wondering
Can you please help me to resolve this issue?
Thanks a tone for you help.