blogjava-凯发k8网页登录

blogjava-凯发k8网页登录http://www.blogjava.net/jack2007/commentsrss.aspxjava, c , linux c, c#.net 技术,软件架构,领域建模,it 项目管理 zh-cnsat, 20 nov 2010 15:47:14 gmtsat, 20 nov 2010 15:47:14 gmtcnblogsre: c#与java之比较http://www.blogjava.net/jack2007/archive/2010/11/16/194230.html#338215纯粹路过的纯粹路过的tue, 16 nov 2010 15:09:00 gmthttp://www.blogjava.net/jack2007/archive/2010/11/16/194230.html#338215因为win32上的虚拟机就是c 实现的，函数库自然是扔dll了，jdk自带的native方法指引着你瞄瞄jdk带的dll。

纯粹路过的 2010-11-16 23:09

]]>re: flex 视频大全『可下载』http://www.blogjava.net/jack2007/archive/2010/09/26/227125.html#332973sssssun, 26 sep 2010 08:59:00 gmthttp://www.blogjava.net/jack2007/archive/2010/09/26/227125.html#332973

ss 2010-09-26 16:59

]]>re: nesqq 项目控制文件分享http://www.blogjava.net/jack2007/archive/2010/09/05/158835.html#331069觉得糊精觉得糊精sun, 05 sep 2010 02:57:00 gmthttp://www.blogjava.net/jack2007/archive/2010/09/05/158835.html#331069

觉得糊精 2010-09-05 10:57

]]>re: 软件架构设计--好书推荐http://www.blogjava.net/jack2007/archive/2010/07/29/199646.html#327424douglassdouglassthu, 29 jul 2010 06:01:00 gmthttp://www.blogjava.net/jack2007/archive/2010/07/29/199646.html#327424

douglass 2010-07-29 14:01

]]>关于”where后面的条件顺序影响“这一段，是不是有问题？http://www.blogjava.net/jack2007/archive/2010/07/14/211728.html#326083yangzhjyangzhjwed, 14 jul 2010 06:36:00 gmthttp://www.blogjava.net/jack2007/archive/2010/07/14/211728.html#326083where后面的条件顺序影响
oracle从下到上处理where子句中多个查询条件，所以表连接语句应写在其他where条件前，可以过滤掉最大数量记录的条件必须写在where子句的末尾。
where子句后面的条件顺序对大数据量表的查询会产生直接的影响，如
select * from zl_yhjbqk where dy_dj = '1kv以下' and xh_bz=1
select * from zl_yhjbqk where xh_bz=1 and dy_dj = '1kv以下'
以上两个sql中dy_dj（电压等级）及xh_bz（销户标志）两个字段都没进行索引，所以执行的时候都是全表扫描，第一条sql的dy_dj = '1kv以下'条件在记录集内比率为99%，而xh_bz=1的比率只为0.5%，在进行第一条sql的时候99%条记录都进行dy_dj及xh_bz的比较，而在进行第二条sql的时候0.5%条记录都进行dy_dj及xh_bz的比较，以此可以得出第二条sql的cpu占用率明显比第一条低。

“可以过滤掉最大数量记录的条件必须写在where子句的末尾”
而作者举的例子中，显然第一条sql更符合这个条件，
但得出的结果是：“以此可以得出第二条sql的cpu占用率明显比第一条低。
”

yangzhj 2010-07-14 14:36

]]>re: flex 视频大全『可下载』http://www.blogjava.net/jack2007/archive/2010/07/08/227125.html#325533阿曼阿曼thu, 08 jul 2010 03:11:00 gmthttp://www.blogjava.net/jack2007/archive/2010/07/08/227125.html#325533谢谢了！！

阿曼 2010-07-08 11:11

]]>re: flex 视频大全『可下载』http://www.blogjava.net/jack2007/archive/2010/05/10/227125.html#320522梁远华梁远华mon, 10 may 2010 12:24:00 gmthttp://www.blogjava.net/jack2007/archive/2010/05/10/227125.html#320522或
leung@techsailor.com

我也需要下载这个视频学习。
谢谢

梁远华 2010-05-10 20:24

]]>re: flex 视频大全『可下载』http://www.blogjava.net/jack2007/archive/2010/04/20/227125.html#318876李子李子tue, 20 apr 2010 09:24:00 gmthttp://www.blogjava.net/jack2007/archive/2010/04/20/227125.html#318876先谢谢啦

李子 2010-04-20 17:24

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时磊 2010-04-12 13:00

]]>re: 软件架构设计参考文件http://www.blogjava.net/jack2007/archive/2010/03/31/299238.html#317074robrobwed, 31 mar 2010 08:34:00 gmthttp://www.blogjava.net/jack2007/archive/2010/03/31/299238.html#317074........what's that?
advertising？ --!

rob 2010-03-31 16:34

]]>re: 计算字符串相似度的简易算法http://www.blogjava.net/jack2007/archive/2010/03/25/251984.html#316499szxszxthu, 25 mar 2010 01:18:00 gmthttp://www.blogjava.net/jack2007/archive/2010/03/25/251984.html#316499

szx 2010-03-25 09:18

]]>re: sso单点登录凯发天生赢家一触即发官网的解决方案[转载][未登录]http://www.blogjava.net/jack2007/archive/2010/03/22/191795.html#316223gongmingwindgongmingwindmon, 22 mar 2010 15:37:00 gmthttp://www.blogjava.net/jack2007/archive/2010/03/22/191795.html#316223

gongmingwind 2010-03-22 23:37

]]>re: nesqq 项目控制文件分享http://www.blogjava.net/jack2007/archive/2010/03/12/158835.html#315294lixufenglixufengfri, 12 mar 2010 08:50:00 gmthttp://www.blogjava.net/jack2007/archive/2010/03/12/158835.html#315294

lixufeng 2010-03-12 16:50

]]>re: sso单点登录凯发天生赢家一触即发官网的解决方案[转载]http://www.blogjava.net/jack2007/archive/2010/03/04/191795.html#314492宋标宋标thu, 04 mar 2010 02:47:00 gmthttp://www.blogjava.net/jack2007/archive/2010/03/04/191795.html#314492谢谢！

宋标 2010-03-04 10:47

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duduppp 2010-01-29 10:58

]]>re: flex 视频大全『可下载』http://www.blogjava.net/jack2007/archive/2010/01/22/227125.html#310540leegangleegangfri, 22 jan 2010 08:44:00 gmthttp://www.blogjava.net/jack2007/archive/2010/01/22/227125.html#310540

leegang 2010-01-22 16:44

]]>re: flex 视频大全『可下载』[未登录]http://www.blogjava.net/jack2007/archive/2010/01/21/227125.html#310394梁健梁健thu, 21 jan 2010 07:11:00 gmthttp://www.blogjava.net/jack2007/archive/2010/01/21/227125.html#310394

梁健 2010-01-21 15:11

]]>re: google 架构之学习http://www.blogjava.net/jack2007/archive/2010/01/16/186980.html#309786happyhappysat, 16 jan 2010 10:03:00 gmthttp://www.blogjava.net/jack2007/archive/2010/01/16/186980.html#309786http://blog.sina.com.cn/mpl398235717

happy 2010-01-16 18:03

]]>re: flex 视频大全『可下载』http://www.blogjava.net/jack2007/archive/2010/01/16/227125.html#309757李星星李星星sat, 16 jan 2010 01:22:00 gmthttp://www.blogjava.net/jack2007/archive/2010/01/16/227125.html#309757

李星星 2010-01-16 09:22

]]>re: sso单点登录凯发天生赢家一触即发官网的解决方案[转载]http://www.blogjava.net/jack2007/archive/2010/01/14/191795.html#309474张敏张敏thu, 14 jan 2010 08:51:00 gmthttp://www.blogjava.net/jack2007/archive/2010/01/14/191795.html#309474

张敏 2010-01-14 16:51

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scotte 2010-01-14 12:07

]]>re: 软件架构设计参考文件http://www.blogjava.net/jack2007/archive/2010/01/08/299238.html#308788geenaprgeenaprfri, 08 jan 2010 15:05:00 gmthttp://www.blogjava.net/jack2007/archive/2010/01/08/299238.html#308788buy" target="_new" rel="nofollow">http://www.primethesis.com">buy thesis services was to purchase the the best legal dissertation about this good post at the dissertation services.

geenapr 2010-01-08 23:05

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5566 2010-01-08 01:41

]]>re: flex 视频大全『可下载』http://www.blogjava.net/jack2007/archive/2010/01/04/227125.html#308132yueliangyueliangmon, 04 jan 2010 01:51:00 gmthttp://www.blogjava.net/jack2007/archive/2010/01/04/227125.html#308132

yueliang 2010-01-04 09:51

]]>re: nesqq 项目控制文件分享[未登录]http://www.blogjava.net/jack2007/archive/2009/12/20/158835.html#306718天天天天sun, 20 dec 2009 01:34:00 gmthttp://www.blogjava.net/jack2007/archive/2009/12/20/158835.html#306718

天天 2009-12-20 09:34

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