标题: ORA-30746: error occured while trying to drop column [打印本页] 作者: admin 时间: 2016-9-5 11:24 标题: ORA-30746: error occured while trying to drop column ORA-30746: error occured while trying to drop column "string" in table"string" Cause: The user tried todrop a subtype with VALIDATE option which tried to
check for stored instances of the type in the stated table Action: Delete all instancesof this subtype and then drop the type.