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PLSQL_性能优化系列15_Oracle Connection Management连接管理
2014-09-25 BaoXinjian一、摘要在官方文档《oracle performance tuning guide》中提到Connecting to the database is an expensive operation that is highly unscalable。数据库的连...
分类:数据库   时间:2014-10-14 22:50:39    阅读次数:222
Android Exception 13(Can't create handler inside thread that has not called Looper.prepare())
10-12 17:02:55.500: E/AndroidRuntime(28343): FATAL EXCEPTION: Timer-210-12 17:02:55.500: E/AndroidRuntime(28343): java.lang.RuntimeException: Can't cr...
分类:移动开发   时间:2014-10-14 19:03:09    阅读次数:268
java jdbc----mysql的select、insert、update、delete
//-----------------------------------select----------------------------------import java.sql.Connection;import java.sql.DriverManager;import java.sql....
分类:数据库   时间:2014-10-14 17:02:49    阅读次数:235
线程池
一】原理 ·传统的: 1)JDBC传统方式找DriverMannager要连接,而这个连接的数目是有限的。 2)传统方式的close(),并未将Connection重用,只是切断应用程序和数据库的桥梁,即无SQL语句发送到数据库。 3)项目中,对于Connection不会直接使用Driver...
分类:编程语言   时间:2014-10-14 14:24:08    阅读次数:243
poj3040(双向贪心)
Allowance Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 1540   Accepted: 637 Description As a reward for record milk production, Farmer John has decided to...
分类:其他好文   时间:2014-10-14 14:22:38    阅读次数:505
Leetcode: Text Justification
Given an array of words and a length L, format the text such that each line has exactly L characters and is fully (left and right) justified.You shoul...
分类:其他好文   时间:2014-10-14 07:58:57    阅读次数:237
根据properties配置文件加载DB-Util帮助类
Technorati 标记: util,properties package cn.itcast.utils; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import j...
分类:数据库   时间:2014-10-14 03:59:07    阅读次数:220
POJ 2112 最大流+二分+(建图:最重要的)
Optimal MilkingTime Limit:2000MSMemory Limit:30000KTotal Submissions:12521Accepted:4524Case Time Limit:1000MSDescriptionFJ has moved his K (1 15, a r....
分类:其他好文   时间:2014-10-14 02:27:17    阅读次数:253
running android lint has encountered a problem
最近写学习android编程的的时候,每次保存.java文件的时候,总会跳出如下错误解决:
分类:移动开发   时间:2014-10-13 23:06:37    阅读次数:257
UVA 10910 Marks Distribution(组合数学 或 递推)
Marks Distribution Time limit: 3.000 seconds In an examination one student appeared in N subjects and has got total T marks. He has passed in all the Nsubjects where minimum mark for passing i...
分类:其他好文   时间:2014-10-13 21:55:37    阅读次数:259
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