select /*+ full(t) */ t.id from tablename t where t.id<10; select t.id from tablename t where t.id<10; 这两条语句到底有什么区别,能否详细的解释一下呢? 谢谢!
by zeronumber - Oracle - 2007-12-14 16:07:07 阅读(1703) 回复(1)
我的操作系统是solaris 8, 现在/ 分区总的空间大小是201Mb,已用空间170Mb, 剩余空间11Mb,94%已用。我检查下来,没有什么大的垃圾文件或临时文件。同时我把这个分区的所有目录下的文件大小加起来只有87Mb。有90Mb的空间不知道到那去了。请问那位碰到过类似情况,希望给与帮助。 十分感谢!
This is one of those posts that’s for me to remember (cause I always forget it) and perhaps could come in handy for you too. From time to time I need to setup full Text Indexing (yes I know there’s lots of alternative) and I hate using the IDE if I don’t have to. Setting Up full Text Indexing sp_fulltext_database 'enable' –-need to have SP3 installed IF EXISTS ( SELECT * FROM sys.fulltext...
Job Descriptions 1. Work at Bejing 2. Focused on Eclipse workspace development for SYBASE Adaptive Server Enterprise 3. full time The candidates are expected to meet following qualifications: 1. A holder of Bachelor or above degree in CS or EE major 2. Having at least 1 year working experiences in Java language and be familiar with OO. 3. Excellent language skills in written and oral English is ...
在一太老机器上实战安装了freebsd6.0,先安装了第一张盘里的ALL packages 然后进系统用sysinstall安装gnome2,开始很顺利,最后出现刷屏一堆的write fail,filesystem is full. 我du了下看见/var和/home都是0%,而/目录却是109%,这是怎么回事???怎么解决???:D:D:D
改写full OUTER JOIN 说起数据库的表JOIN,一直是SQL语句开发中最为关注的重点,特别是在OLAP的DW领域。 关注JOIN主要关注JOIN的性能,一般来说数据库都会支持为不同场合不同的代价实现MERGE、HASH以及NESTED-LOOP等JOIN的实现方式。这个非常重要,但这个不是本文主题,以后我想好好的阐述这方面的内在以及优化,不过可能需要根据数据库的不同而分开描述,在此不必熬述。 今天要想说的是JOIN的类型。根据需求,一般来说JOIN有如下...
我的是AIX5.1加SYBASE11.92,1到2个月就来一次tempdb库慢,挂了,重起,郁闷啊,各位有什么好办法啊,tempdb满了后所有的操作都做不了,我该怎么看在TEMPDB满之前谁做过那些查询或者操作呢?好像SYBASE.LOG里不会记载SQL语句查询的。
我在终端执行lynx后没有关闭该程序,而是直接关闭的终端,结果就提示: “/:write failed,filesystem in full” 我的 / 是分的248M,用df查看显示用了108%,汗啊。盼高手指点。 到/root里找.core类的文件,一个也没有找到,实在纳闷!
Anyone hit this erorr before. I saw it under db2diag.log. Anyone know how to solve it? FYI, I had change my num_ioservers same with my phsical disk but this error still occur. Please advise 2005-06-01-10.38.32.492465 Instance:db2inst Node:000 PID:21372(db2agent (ITEPS)) Appid:0A140A33.8121.050601022819 buffer_pool_services sqlbIsContInRange Probe:20 Database:ITEPS sqlbKeepPagesPinned...