I have a query in marketing cloud that run daily to add data in a data extension.
What should be the "UPDATE TYPE" if i want to add new records in my target data extension.
I do not want to update or overwrite.
Should i select APPEND? what exactly does append do compared to the overwrite and update types?
Update: Yes my question is for Add only but i was just asking about update case in the comments. Just to confirm, the append won't add duplicates correct? There is a chance that my query may encounter records that already exists in my target data extension, and I do not want duplicates. I have the subscriberKey as primary key so I hope query won't error out if it sees any incoming records same as what i have in target DE.