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

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.

Error Type: ORA

• Additional information for ORA-30746: error occured while trying to drop column "[string]" in table "[string]"30746
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