解决Oracle 11g空表无法导出的问题
Oracle 11g 新增参数deferred_segment_creation ,建库的时候默认值为true,意思是延时加载,当表中不存在数据的时候,不为这个表
Oracle 11g 新增参数deferred_segment_creation,建库的时候默认值为true,,意思是延时加载,当表中不存在数据的时候,不为这个表创建空间,当你导出的时候会发现很多表不存在
使用show parameter deferred deferred_segment_creation; 命令可以查看deferred_segment_creation的值,如果想让空表导出
方法一:像库表中插入值
方法二:1、执行sql修改deferred_segment_creation的值 :alter system set deferred_segment_creation=false;
2、执行sql: select 'alter table '||table_name||' allocate extent;' from user_tables where num_rows=0;
用pl/sql将结果 ——右键 —— 复制到Excel... 将结果复制到sql窗口中运行 然后就可以导出了
Oracle 11g表空间dbf文件迁移
移动Oracle表空间数据文件方案
删除临时表空间ORA-25152错误
Oracle表空间增长异常解决又一例
Oracle表空间Offline的三种参数详述
Oracle 11g下加密表空间的使用
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