I am inserting data into target table on daily basis(once in a day) from source table. I want to insert only new records into target table to avoid duplicate. I want to keep old record in target table if data changes in one field, It should insert new record and expire old record in Target table. I want to keep old record as well. I think this problem is related to CDC. I am using only Teradata, no other third party tools. Could you please help me to solve this problem using SQL?
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