标题: ORA-22289: cannot perform string operation [打印本页] 作者: admin 时间: 2016-8-31 17:02 标题: ORA-22289: cannot perform string operation ORA-22289: cannotperform string operationon an unopened file or LOB Cause: The file or LOB is not open for the required operationto be performed. Action: Precedethe current operation with a successful open operation on the file
or LOB.