ORA-54056：unsupported operation on sensitive column
错误码
错误描述：unsupported operation on sensitive column
错误原因：An attempt was made to either alter the visibility of a sensitive column or change the sensitive column to vector encode.
解决方法：Specify the name of a non-sensitive column, or use the DROP_SENSITIVE_COLUMN PL/SQL procedure in the DBMS_TSDP_MANAGE package to remove the sensitivity of the column before altering it.
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