• 博客访问: 136386
  • 博文数量: 68
  • 用 户 组: 普通用户
  • 注册时间: 2008-05-04 11:19
个人简介

暂无介绍

ITPUB论坛APP

ITPUB论坛APP



APP发帖 享双倍积分

文章分类
文章存档

2010年(35)

2009年(32)

2008年(1)

我的朋友
微信关注

IT168企业级官微



微信号:IT168qiye



系统架构师大会



微信号:SACC2013

订阅
热词专题

发布时间:2010-07-07 16:58:16

If you've been developing applications on Oracle for a while, you've no doubt come across the concept of «Bind Variables». Bind variables are one of those Oracle concepts that experts frequently cite as being key to application performance, but it's often not all that easy to pin down exactly what they are and how you need to alter your programming style to use them. To understand bind variables, consider an application that generates thousands of SELECT statements against a table; f......【阅读全文】

阅读(1818) | 评论(0) | 转发(0)

发布时间:2010-07-07 11:36:59

Trevor -- Thanks for the question regarding "Parse CPU to Parse Elapsed", version 8.1.7Submitted on 1-Jun-2003 20:12 Central time zoneTom's latest followup | Bookmark | BottomLast updated 26-May-2010 7:38You Asked Hi Tom, I got given a statspack report to check out. The Parse CPU to Parse Elapsed seems terrible. In you book Expert 1 on 1 page 481 your example was 87.88% and you say for every CPU second it spent about 1.13 seconds of wall clock time. How did you work out 1.13 ......【阅读全文】

阅读(2335) | 评论(0) | 转发(0)

发布时间:2010-06-30 11:14:03

razvan -- Thanks for the question regarding "in and out variables - whats the difference", version 7.3.2Submitted on 19-Jun-2000 9:36 Central time zoneTom's latest followup | Bookmark | BottomLast updated 4-Mar-2008 7:31You Asked hello tom, can you explain me what is the diference between variables in and out in pl/sql? thanks a lot razvan and we said...An IN parameter can be read but not written to in plsql. If I attempt to modify an IN parameter -- it will fail at compile t......【阅读全文】

阅读(11127) | 评论(0) | 转发(0)
给主人留下些什么吧!~~
留言热议
请登录后留言。

登录 注册