select event,count(1) from gv$session group by event order by 2;exec dbms_workload_repository.create_snapshot;select 'alter system kill session '''||sid||','||serial#||''';' from v$session where event='latch free'; SET LINESIZE 200SET NEWPAGE NONECOL…
Complete list of Microsoft SQL Server trace flags (585 trace flags) REMEMBER: Be extremely careful with trace flags, test in your test environment first. And consult professionals first if you are the slightest uncertain about the effects of your cha…
数据库存储异常crash,首先控制文件出现问题 ORA-: ????? ???? ORA-: ???? : '/oracledata/oradata/orc11rac/orc11rac/system01.dbf' ORA-: ????????? - ?????? /home/oracle>oerr ora , , "file is more recent than control file - old control file" // *Cause: The control fi…
一.创建表空间与用户,因为数据文件没有指定路径,所以需要修改数据文件路径,才有了下面的需求. create tablespace wo datafile 'wo.dbf' size 20m;create user wo identified by "123abc" default tablespace wo;grant connect,resource to wo; 针对非系统表空间,对sysaux,users表空间同样适用select * from v$datafile;select…
从外部EXCEl文件导入sqlserver数据库操作命令 reconfigure reconfigure go select * into abc1_1 from OPENROWSET('MICROSOFT.JET.OLEDB.4.0' ,'Excel 5.0;HDR=YES;DATABASE=文件路径',SQLResults$) 注意:文件路径到excel下某个固定的sheet,sheet名字不要有空格 数据库合并 insert into [新数据库名(合并后的)] select [字段] F…