XML combile tag in ATG repository

Question

Hi All,
  Below are the few commonly used tags in repository.xml in ATG. I wanted to know at wich all levels its used and why its used in different levels?? wats the difference???
1)item descriptor level
2)property level
3) <gsa-template> 
xml-combine="replace"
xml-combine="remove"
xml-combine="append"

Answer 1

Hi,
As mentioned by Shaik, the effect of these tags is the same no matter which level they are added to.
Your requirements decide at which level you need to add these tags.
Below are the common ones.
1. We use xml-combine="append" to the gsa-template when we extend the ATG OOB repository ex: Productcatalog or order repository
2. Lets say you need to store your CC information alone in a custom table. then you can add xml-combine="replace" to the creditcard item descriptor alone and you can define your own item descriptor.
3. More specifically if you need to just store the CC number alone in the custom table, you can add xml-combine="replace" to the cc number property alone and make it to point to the column in your custom table.
These are few examples. We may have much more.
Hope this helps.
Keep posting the questions / updates.
Thanks,
Gopinath Ramasamy