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############################################### Log4J /u914d/u7f6e/u6587/u4ef6##############################################
# /u5b9a/u4e49/u7f3a/u7701/u7684/u65e5/u5fd7/u7ea7/u522b/u548c/u8f93/u51fa/u5bf9/u8c61log4j.rootLogger=INFO, logfile
# /u8bbe/u5b9a/u63a7/u5236/u53f0/u8f93/u51fa/u6a21/u5f0fl ...
- 2011-04-12 17:18
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1.问题描述:
ECSS中有一条BI ETL的SQL语句(如下),当S_ETL_I_IMG_26表的数据量达到15W, S_ETL_R_IMG_26表有150W后,这条SQL语句将会执行10多个小时.
DELETE FROM S_ETL_R_IMG_26
WHERE EXISTS
( SELECT 'X'
FROM S_ETL_I_IMG_26
WHERE S_ETL_R_IMG_26.ROW_ID = S_ETL_I_IMG_26.ROW_ID
)
- 2011-04-12 17:17
- 浏览 442
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Prune days and Change Capture in DAC
By Vimarsh Ganju on May 27th, 2008 under Siebel General, Siebel Street.
Here is a question I often get from customers regarding change capture by DAC when it is used for extracting Siebel data. The problem is equally valid for non-Siebel data sources if the defa ...
- 2011-04-11 17:49
- 浏览 359
- 评论(0)
1.问题描述:
ECSS中有一条BI ETL的SQL语句(如下),当S_ETL_I_IMG_26表的数据量达到15W, S_ETL_R_IMG_26表有150W后,这条SQL语句将会执行10多个小时.
DELETE FROM S_ETL_R_IMG_26
WHERE EXISTS
( SELECT 'X'
FROM S_ETL_I_IMG_26
WHERE S_ETL_R_IMG_26.ROW_ID = S_ETL_I_IMG_26.ROW_ID
- 2011-04-11 17:48
- 浏览 345
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publicclassReadFromFile{/***以字节为单位读取文件,常用于读二进制文件,如图片、声音、影像等文件。*/publicstaticvoidreadFileByBytes(StringfileName){Filefile=newFile(fileName);InputStreamin=null;try{System.out.println("以字节为单位读取文件内容,一次读一个字节:");//一次读一个字节in=newFileInputStream(file);inttempbyte;while((tempbyte=in.read())!=
- 2011-04-08 13:36
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<%@ page language="java" import="java.util.*,com.*,org.apache.log4j.Logger" pageEncoding="UTF-8"%><%@page import="java.sql.*;"%><% boolean flag=true; Connection con=null; ResultSet rs=null; String filePath=""; Logger logger=Logger. ...
java 字符串解析
Java code
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StringTokenizer tokenizer = new StringTokenizer(number, ",");
boolean bool = true;
while (tokenizer.hasMoreTokens()) {
...
遗传算法
Java code
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import java.util.*;
public class Tsp {
private String cityName[]={"北京","上海","天津","重庆","哈尔滨","长 ...
/** * 人民币转成大写 * * @param value * @return String */ public static String hangeToBig(double value) { char[] hunit = { '拾', '佰', '仟' }; // 段内位置表示 char[] vunit = { '万', '亿' };
java哈弗曼编码的实现
Java code
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//哈弗曼编码的实现类
public class HffmanCoding {
private int charsAndWeight[][];// [][0]是 字符,[][1]存放的是字符的权值(次数)
private int hfmcoding[][];// 存放哈弗曼树
...
点到线段的最短距离
Java code
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private double pointToLine(int x1, int y1, int x2, int y2, int x0,
int y0) {
double space = 0;
double a, b, c;
...
JEditorPane使用技巧此组件使用 EditorKit 的实现来完成其操作。对于给予它的各种内容,它能有效地将其形态变换为适当的文本编辑器种类。该编辑器在任意给定时间的内容类型都由当前已安装的 EditorKit 确定。如果将内容设置为新的 URL,则使用其类型来确定加载该内容所应使用的 EditorKit。 有多种方式可将内容加载到此组件中。 1. 可使用 setText 方法来初始化字符串组件。在这种情况下,将使用当前的 EditorKit,且此类型为期望的内容类型。 2. 可使用 read 方法来初始化 Reader 组件。注意,如果内容类型为 HTML ...
java dos输入输出
Java code
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import java.util.*;
public class DaoXu {
/**
* @param args
*/
public static void main(String[] args) {
// TODO 自动生成方法存根
...
java访问xml文件
Java code
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import java.io.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w ...
C语言,C++,C#,VC++语言学习,及应用网址
http://download.chinaitlab.com/special/CYYdowmload.htm
- 2011-04-07 09:58
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