Table ALERT_QT contains one or more ALERT_TYPE columns.
Cannot export in PL/SQL Developer fromat
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用PL/SQL导出数据的问题
用PL/SQL导出数据时,选择tools->export tables 然后指定上当,选择export这时,先会分析,然后报错,错误界面的内容如下: Table ALERT_QT contains one or more ALERT_TYPE columns. Cannot export in PL/SQL Developer fromat