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u010620626:
foreach是最快的,因为php的array内部元素之间有指 ...
[流言终结者] PHP for / foreach / while 性能比较 -
ostrich_sun:
谢楼主
Sybase PowerDesigner 12.5 破解补丁/序列号/注册码 -
xuxueqin29:
为什么我这边用不上
Sybase PowerDesigner 12.5 破解补丁/序列号/注册码 -
sdpfoue:
http://www.php-internals.com/bo ...
[流言终结者] PHP for / foreach / while 性能比较 -
nakupanda:
lovelease 写道nakupanda 写道你应该去阅读一 ...
java调用microsoft translate api webservice
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问题描述:
数据表中有记录的time字段(属性为timestamp)其值为:“0000-00-00 00:00:00”
程序使用select 语句从中取数据时出现以下异常:
java.sql.SQLException:Value '0000-00-00' can not be represented as java.sql.Date
后查资料发现 “0000-00-00 00:00:00”在mysql中是作为一个特殊值存在的
但 java.sql.Date 将其视为 不合法的值 格式不正确
解决办法:
给jdbc url加上 zeroDateTimeBehavior参数:
...
转自:
http://www.iteye.com/topic/1052822
mysql> (select "yes" from dual where 5 between 1 and 10) union (select "no") limit 1;
+-----+
| yes |
+-----+
| yes |
+-----+
1 row in set (0.02 sec)
mysql> (select "yes" from dual where 5 between 10 and 1) union (select "no") limit 1;
+-----+
| yes |
+- ...
假设有数据库db1和db2 , 表db1.t_task_msg, db2.t_task_msg
现在同步db1.t_task_msg数据到db2.t_task_msg
1, 在db2建立到db1的连接source_link
create database link source_link
connect to db1_user identified by db1_pwd
using
'(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521) ...
1, 建立连接
drop database link source_link;
create database link source_link
connect to user identified by password
using
'(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl)
)
)'
;
2, 查询 ...
http://www.lambdaprobe.org
安装过程中遇到不少问题,记录一下:
wayne@wayne-laptop:~/.ssh$ ssh -X holly@10.8.66.201
holly@10.8.66.201′s password:
Linux ubuntu108 2.6.24-19-server #1 SMP Wed Jun 18 14:44:47 UTC 2008 x86_64
The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are descri ...
cat /proc/swaps | awk '{if(NR==2)print $3/1024"MB"}'
suse linux 安装 apache2 php5 出现
Cannot load /usr/local/apache2/modules/libphp5.so into server: /usr/local/apache2/modules/libphp5.so: undefined symbol:
到PHP源码目录make clean , 再重新安装一次
rpm 查询 安装 卸载
- 博客分类:
- LINUX
rpm -q xxxx 查询
rpm -ivh xxxx 安装
rpm -e xxxx 卸载
select *
from
(
select * from your_table order by dbms_random.value
)
where rownum <= 10
1 create or replace procedure p_test
2 as
3 v_G VARCHAR2(10);
4 begin
5 begin
6 select name into v_G from test where id =1;
7 exception
8 when no_data_found then
9 v_G:= 'hhh ';
10 end;
11 ...
apache:
转自 http://blog.csdn.net/loverwind/archive/2008/10/12/3064356.aspx
1. 下载apache, http://httpd.apache.org/download.cgi 通过这个官方网站,我们可以下到最新的版本。现在版本都是以这样的方式表达的:httpd-*.*.*.tar.gz
2. 例如, ...
导出:
exp username/password@database file=/var/bak/oracle.dmp
导入
imp username/password file=/var/bak/oracle.dmp full=y
package test;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class TestThreadPool {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
...