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...
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数据库 时间:
2014-10-14 22:50:39
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222
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...
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移动开发 时间:
2014-10-14 19:03:09
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268
//-----------------------------------select----------------------------------import java.sql.Connection;import java.sql.DriverManager;import java.sql....
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数据库 时间:
2014-10-14 17:02:49
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235
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...
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编程语言 时间:
2014-10-14 14:24:08
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243
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...
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其他好文 时间:
2014-10-14 14:22:38
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505
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...
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其他好文 时间:
2014-10-14 07:58:57
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237
Technorati 标记: util,properties package cn.itcast.utils; import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import j...
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数据库 时间:
2014-10-14 03:59:07
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220
Optimal MilkingTime Limit:2000MSMemory Limit:30000KTotal Submissions:12521Accepted:4524Case Time Limit:1000MSDescriptionFJ has moved his K (1 15, a r....
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其他好文 时间:
2014-10-14 02:27:17
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253
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:
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移动开发 时间:
2014-10-13 23:06:37
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257
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...
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其他好文 时间:
2014-10-13 21:55:37
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259