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标题: ORA-54031: column to be dropped or modified is used in a virtual column expre... [打印本页]

作者: 曾春华 时间: 2016-9-4 09:51
标题: ORA-54031: column to be dropped or modified is used in a virtual column expre...

ORA-54031: column to be dropped or modifiedis used in a virtual column

expression

Cause: Attempted to drop or modify acolumn that was used in a virtual column

expression.

Action: Drop the virtual column firstor change the virtual column expression to

eliminate dependency on the column to be dropped.

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