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标题: ORA-30055: NULL snapshot expression not [打印本页]

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作者: admin    时间: 2016-9-4 19:15
标题: ORA-30055: NULL snapshot expression not
ORA-30055: NULL snapshot expression not allowed here
Cause: The snapshotexpression is NULL.
Action: Specify a non-NULLsnapshot expression.

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