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ORA-30746: error occured while trying to drop column
"string" in table "string"



ORA-30746: error occured while trying to drop column "string" in table "string"..

Answer / guest

Cause: The user tried to drop a subtype with VALIDATE option
which tried to check for stored instances of the type in the
stated table

Action: Delete all instances of this subtype and then drop
the type.

Please add more information about this Error

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