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鸟儿的翅膀系上黄金,它就飞不起来了.declarebegindbms_lock.sleep(120);end;grant execute on dbms_lock to scottselect sid,event,total_waits,average_wait from v$session_wait where sid=144insert into stats$begin_dc select * from v$rowcache;A collection of wait events provides information on the sessions that had to wait o 阅读全文
posted @ 2012-09-26 16:42
dujilu
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The Alert log file contains the following information which can be used in tuning the database:Checkpoint start and end times.Incomplete checkpointsTime to perform archivingCrash recovery start and complete times.egg:conn sys/oracle as sysdbashow parameter log_checkpoint_interalshow parameter log_ch 阅读全文
posted @ 2012-09-26 14:56
dujilu
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=============oralce安装===============基本位置:Oracle安装在哪一个目录(注意不同版本的区别)%driver_name%\app\username目标驱动器:一般Oracle自动选择剩余空间最多的驱动器Oracle主目录:用于设置环境变量OracleHome,一般指向Oracle 程序文件所在的目录(db_1)类型:版本区别与操作系统无关个人版标准版企业版选择Oracle产品时,是与OS有关的。win32,unix/linux、Mac OS、visita附加启动数据库如果不选,只安装软件,没有数据库如果选,需要设置数据库名全局数据库名:在网络上唯一标识数据 阅读全文
posted @ 2012-09-26 14:11
dujilu
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志存当高远,功到自然成。 阅读全文
posted @ 2012-09-26 13:38
dujilu
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