oracle删除死锁的session
查看锁表进程SQL语句1:
select sess.sid,
sess.serial#,
lo.oracle_username,
lo.os_user_name,
ao.object_name,
lo.locked_mode
from v$locked_object lo,
dba_objects ao,
v$session sess
where ao.object_id = lo.object_id and lo.session_id = sess.sid;
杀掉锁表进程:
alter system kill session 'sid,serial#';
如有记录则表示有lock,记录下SID和serial# ,将二者连接起来,就可以kill。如下:
alter system kill session '1458,15829';
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本译文采用知识共享署名-非商业性使用-相同方式共享 3.0 Unported许可协议发布,转载请保留此信息
译者:马齿苋 | 链接:http://www.dbabeta.com/2010/oracle-sql-server-comparison-i.html
作者:Sadequl Hussain | 原文:http://www.sql-server-performance.com/articles/dba/oracle_sql_server_comparison_p1.aspx
一 ......
1.绝对值
S:select abs(-1) value
O:select abs(-1) value from dual
2.取整(大)
S:select ceiling(-1.001) value
O:select ceil(-1.001) value from dual
3.取整(小)
S:select floor(-1.001) value
O:select floor(-1.001) value from dual
4.取整(截取)
......
ORACLE日期时间函数大全
TO_DATE格式(以时间:2007-11-02 13:45:25为例)
Year:
yy two digits 两位年   ......
数学函数:
1.绝对值
S:SELECT abs(-1) value
O:SELECT abs(-1) value from dual
2.取整(大)
S:SELECT ceiling(-1.001) value
O:SELECT ceil(-1.001) value from dual
3.取整(小)
S:SELECT floor(-1.001) value
O:SELECT floor(-1.001) value from dual
4.取整(截取)
S:SELECT cast(-1.002 as int) value
O ......