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标题: ORA-54004: resultant data type of virtual column is not supported [打印本页]

作者: 曾春华 时间: 2016-9-4 10:00
标题: ORA-54004: resultant data type of virtual column is not supported

ORA-54004: resultant data type of virtualcolumn is not supported

Cause: The data type of theunderlying expression is not supported. Only scalar

data types are supported for virtual columns. LONG, BLOB,REF, and BFILE data

types are not supported for virtual columns.

Action: Specify the expression ofvirtual column to return a supported scalar data

type.

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