Oracle 数据导入到新库出现中文乱码的原因:旧库和新库的字符集不一致引起的.1.查询字符集的值select parameter,value from nls_database_parameters where parameter='NLS_CHARACTERSET';2.更改字符集SQL> SHUTDOWN IMMEDIATE;SQL> STARTUP MOUNT;SQL> ALTER SESSION SET SQL_TRACE=TRUE;SQL> ALTER SYSTEM E
oracle数据中删除数据时提示“记录被另一个用户锁住” 解决方法: 1.查看数据库锁,诊断锁的来源及类型: select object_id,session_id,locked_mode from v$locked_object; 或者用以下命令: select b.owner,b.object_name,l.session_id,l.locked_mode from v$locked_object l, dba_objects b where b.object_id=l.object_id