jsp连接sql2005
在管理工具里面有数据源 选择sql数据源
在代码中：
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@page import="java.sql.*"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<%
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:Ybz");
Statement stat=con.createStatement();
ResultSet rs=stat.executeQuery("select * from [case] ");
//或者
// PreparedStatement pstat=con.prepareStatement("select * from 数据库表的名称 where ID=?");
// pstat.setString(1,值);
// ResultSet rs=pstat.executeQuery();
%>
<table border="1">
<%
while(rs.next())
{
%>
<tr>
<td>
<%=rs.getString(1)%>
&n
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上周接到一个奇怪的bug，一个曾经运行得很好的存储过程突然产生了错误的结果。
负责维护的兄弟们很负责任的对错误进行了跟踪，并把错误定位一个如下的语句：
SELECT *
into SomeTable
from A join B on A.id=B.id
join C on A.id=C.id
他们发现从SomeTable做查询的 ......
The following tables describe certain SQL
limits. Adhering to the most restrictive case can help the programmer
design application programs that are easily portable.
Table 7. Identifier Length Limits
Description
Limit in Bytes
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name (can only be single-byte characters) ......
1．SQL并行查询
alter session enable parallel dml execute immediate 'alter session enable parallel dml'; --修改会话并行DML select /*+parallel(a,4)*/ * from table_name a select /*+parallel(a,8)*/ * from table_name a &nbs ......
(1)数据记录筛选：
sql="select*from数据表where字段名=字段值orderby字段名[desc]"
sql="select*from数据表where字段名like'%字段值%'orderby字段名[desc]"
sql="selecttop10*from数据表where字段名orderby字段名[desc]"
sql="select*from数据表where字段名in('值1','值2','值3')"
sql="select*from数据表where� ......
1.部署三种方式：
(1) 在server.xml的Host标签内新建一个Context标签
<Context path="/learn1" reloadable="true" docBase="E:\work\tech\project\learn1\WebRoot" workDir="E:\work\tech\project\learn1\WebRoot\work" />
* workDir是指To ......
