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 Originally Posted by dhawanmansi
My understanding is that it should reflect back in the main parent table.
Wrong assumption - doesn't work that way.
The only reason you are not getting an error when updating STAFF.D_ID is because the new value already exists in DEPTT.D_ID
Pablo (Paul) Berzukov
Author of Understanding Database Administration available at amazon and other bookstores.
Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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