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Question : drop index does not work for unique keys
what is the reason DROP index syntax is disabled for deleting unique keys (non PKs)
thanks
Answer : drop index does not work for unique keys
if you have a PK and a UK, you will also have 2 indexes, 1 index per UK or PK constraint.
for the rest, it's the same situation: the database engine will not allow to drop the index.
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