数据库源代码

‘壹’ asp连接sql server 2000数据库的源代码

ASP连接SQL
，这个一般是在程序内用语句实现。建议是这样去做。
给你一个我自己的参考代码。
这个是ASP连接SQL
SERVER
2000的。
strConn
=
"provider=sqloledb.1;server=数据库服务器;uid=用户名;pwd=密码;database=数据库名"
Set
conn
=
Server.CreateObject("ADODB.Connection")
conn.open
strConn
希望能对你有所帮助。
这个是ASP连接ACCESS的。
connectionStr
=
"provider=microsoft.jet.oledb.4.0;data
source="
&
Server.MapPath("ACCESS数据库路径")
conn.Open
connectionStr

‘贰’ 如何下载mysql数据库源代码

看有没有SQL类，有的话重写成MYSQL的类就行了，如果没有的话，操作就多了；如果是想把SQLSE

‘叁’ 求java 注册登录 连接到数据库的源代码。

package cc.icoc.javaxu.;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;public class MySQLOprea { /** * 增加记录 INSERT INTO 表名(字段名，字段名) VALUES (值，值)； * 删除记录 DELETE FROM 表名 WHERE 条件() * 修改记录 UPDATE 表名 SET 字段=值，字段=值 WHERE 条件 * 查询记录 SELECT 字段，字段 FROM 表名 WHERE 条件 */ ResultSet rs = null; Connection conn = null; Statement statement = null; //链接 public Connection connSQL() { String DRIVER = "com.mysql.jdbc.Driver";// 数据库驱动 String URL = "jdbc:mysql://localhost:3306/mydata?useUnicode=true&characterEncoding=gb2312";// String DBNAME = "root";// 用户名 String DBPASS = "341341";// 密码 try { Class.forName(DRIVER).newInstance();// 注册驱动 conn = DriverManager.getConnection(URL, DBNAME, DBPASS); statement = conn.createStatement(); } catch (Exception e) {} return conn; } //增 /** * 插入新记录的操作 * @param table 表名 * @param userName 插入的用户名 * @param passWord 插入的用户密码 * @return true代表插入成功，false代表插入失败 */ public String insert(String table, String userName, String passWord) { connSQL(); String s = "注册成功"; try { String insert = "insert into "+table+"(userName,passWord) values ("+"'"+userName+"'"+","+"'"+passWord+"'"+")"; statement.executeUpdate(insert); closeDB(); } catch (Exception e) { // TODO: handle exception s = "注册失败"+e.toString(); } return s; } //删 public void delete(String table, String whereValue) throws SQLException { String delete = "Delete from "+table+" where userName = "+whereValue; statement.executeUpdate(delete); } //改 public void update(String table, String whereValue , String newValue) throws SQLException { String update = "Update "+table+" set passWord ="+newValue+" where userName ="+whereValue; statement.executeUpdate(update); } //查 public String query(String table , String whereValue1 ,String whereValue2, String whatCol1, String whatCol2) throws SQLException { connSQL(); String query = null;// ResultSet set= null; try { query = "select "+whatCol1+","+whatCol2+" from "+table +" where "+whatCol1+"="+'"'+whereValue1+'"'+" and "+whatCol2+"="+'"'+whereValue2+'"'; rs = statement.executeQuery(query); closeDB(); } catch (Exception e) { // TODO: handle exception return "false exception:"+e.toString(); } if(rs.next()) { return "true:"; } return "false:"; } private void closeDB() { // TODO Auto-generated method stub try { if(rs != null) { rs.close(); } if(statement != null) { statement.close(); } if(conn != null) { conn.close(); } } catch (Exception e) { // TODO: handle exception System.out.println("数据库关闭时出现异常"); } }}

‘肆’ MFC数据库编程源代码

10.Sql Server7.0/2000数据库
/*
#import "c:\Program Files\Common Files\System\ADO\msado15.dll" \
no_namespace rename("EOF", "EndOfFile")
*/
CoInitialize(NULL); // 初始化OLE/COM库环境 ，为访问ADO接口做准备
_RecordsetPtr m_pRecordset("ADODB.Recordset");
_ConnectionPtr m_pConnection("ADODB.Connection");
_bstr_t bstrSQL("select * from stu_info"); //查询语句
char * query_cmd = "DELETE FROM stu_info WHERE sname = ’本拉登’";
try
{
// 创建Connection对象
m_pConnection.CreateInstance("ADODB.Connection");
// 设置连接字符串，必须是BSTR型或者_bstr_t类型
_bstr_t strConnect= "Provider=SQLOLEDB;Server=(local);Database=db2; uid=; pwd=;";
//若数据库在网络上则Server为形如(192.168.1.5,3340)
//用户sa和密码123只是针对我的库
m_pConnection->Open(strConnect,"","",adModeUnknown);
if(m_pConnection==NULL)
cerr<<"Lind data ERROR!\n";
// 创建记录集对象
m_pRecordset.CreateInstance(_uuidof(Recordset));
// 取得表中的记录
m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),
adOpenDynamic,adLockOptimistic,adCmdText);
_variant_t vsnum,vsname,vsage,vssex,vsmajor; //对应库中的snum,sname,sage,ssex,smajor
cout << "学号 姓名 年龄 姓别 专业";
cout << "\n----------------------------------------------------------------\n";
while (!m_pRecordset->EndOfFile)
{
vsnum = m_pRecordset->GetCollect(_variant_t((long)0));//这儿给字段编号和字段名都可以
vsname = m_pRecordset->GetCollect("sname");
vsage = m_pRecordset->GetCollect("sage");
vssex = m_pRecordset->GetCollect("ssex");
vsmajor = m_pRecordset->GetCollect("smajor");
if (vsnum.vt != VT_NULL && vsname.vt != VT_NULL && vsage.vt != VT_NULL
&& vssex.vt != VT_NULL && vsmajor.vt != VT_NULL)
{
cout.setf(ios::left);
cout << setw(14) << (char*)(_bstr_t)vsnum;
cout << setw(14) << (char*)(_bstr_t)vsname;
cout << setw(8) << vsage.lVal;
cout << setw(8) << (char*)(_bstr_t)vssex;
cout <<setw(20) << (char*)(_bstr_t)vsmajor;
cout.unsetf(ios::left);
cout << endl;
}
m_pRecordset->MoveNext(); ///移到下一条记录
}
cout << "\n----------------------------------------------------------------\n";
cout << "\n请输入你要添加的学生信息\n";
cout << "学号:";
cin >> student.snum;
cout << "\n姓名:";
cin >> student.sname;
cout << "\n年龄:";
cin >> student.sage;
cout << "\n姓别:";
cin >> student.ssex;
cout << "\n专业:";
cin >> student.smajor;
m_pRecordset->MoveFirst(); //移动到第一条记录
m_pRecordset->AddNew(); ///添加新记录
m_pRecordset->PutCollect("snum",_variant_t(student.snum));
m_pRecordset->PutCollect("sname",_variant_t(student.sname));
m_pRecordset->PutCollect("sage",_variant_t(student.sage));
m_pRecordset->PutCollect("ssex",_variant_t(student.ssex));
m_pRecordset->PutCollect("smajor",_variant_t(student.smajor));
m_pRecordset->Update();
m_pConnection->Execute(query_cmd,NULL,1); //用Execute执行sql语句来删除
m_pRecordset->Close(); // 关闭记录集
}
// 捕捉异常
catch(_com_error e)
{
// 显示错误信息
cerr << "\nERROR:" << (char*)e.Description();//抛出异常
}
if(m_pConnection->State)
m_pConnection->Close();
::CoUninitialize();

20.数据库存入二进制字段数据
/*
#import "c:\Program Files\Common Files\System\ADO\msado15.dll" \
no_namespace rename("EOF", "EndOfFile")
*/
CoInitialize(NULL);
_RecordsetPtr pRs=NULL;
_StreamPtr pStream=NULL;
pRs.CreateInstance(_uuidof(Recordset));
pStream.CreateInstance(__unidof(Stream));
_bstr_t ConnectString(("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=%%1;Persist Security Info=False"); //C:\\mydb.mdb
pRs->Open(_bstr_t("Blob"),ConnectString,adOpenKeyset,adLockOptimistic,adCmdTable);
_variant vtSource;
vtSource.vt=VT_ERROR;
_bstr_t bstrUser(L"");
_bstr_t bstrPass(L"");
pStream->Type=adTypeBinary;
pStream->Open(vtSource,adModeUnknown,adOpenStreamUnspecified,bstrUser,bstrPass);
pStream->LoadFromFile(_bstr_t(%%3)); //"C:\\mypic.bmp"
pRs->AddNew();
pRs->Fields->GetItem(_variant_t(%%2))->put_Value(_variant_t(pStream->Read(adReadAll))); //"Image"
pRs->();
pStream->Close();
pRs->Close();
CoUninitialize();

21.数据库取出二进制字段数据
/*
#import "c:\Program Files\Common Files\System\ADO\msado15.dll" \
no_namespace rename("EOF", "EndOfFile")
*/
CoInitialize(NULL);
_RecordsetPtr pRs=NULL;
_StreamPtr pStream=NULL;
pRs.CreateInstance(_uuidof(Recordset));
pStream.CreateInstance(__unidof(Stream));
_bstr_t ConnectString(("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=%%1;Persist Security Info=False");//C:\\mydb.mdb
pRs->Open(_bstr_t("Blob"),ConnectString,adOpenKeyset,adLockOptimistic,adCmdTable);
pStream->Write(_variant_t(pRs->Fields->GetItem(_variant_t(%%2))->GetValue())); //"Image"
pStream->SaveToFile(_bstr_t(%%3),adSaveCreateOverWrite); //"C:\\mypic.bmp"
pStream->Close();
pRs->Close();
CoUninitialize();

‘伍’ 用JAVA编程的通过SQL连接数据库的商品库存管理系统的源代码

package com.company.;
import java.sql.Connection;import java.sql.DriverManager;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;public class BaseDao {
// 数据库驱动
String driver = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
//url
String url = "jdbc:sqlserver://数据库ip:端口号;databaseName=数据库名;";
//用户名
String uname = "数据库用户名";
//密码
String pwd = "数据库密码";

/**
* 获得连接对象
* @return
*/
protected Connection getCon(){
//返回的连接
Connection con = null;

try {
//载入驱动
Class.forName(driver);
//得到连接
con = DriverManager.getConnection(url, uname, pwd);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
return con;
}

/**
* 关闭数据库
* @param con
* @param stmt
* @param rs
*/
protected void closeDB(Connection con, Statement stmt, ResultSet rs){
if(rs != null){
try {
//关闭结果集
rs.close();
rs = null;
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(stmt != null){
try {
//关闭语句对象
stmt.close();
stmt = null;
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(con != null){
try {
//关闭连接对象
con.close();
con = null;
} catch (SQLException e) {
e.printStackTrace();
}
}
}

protected void closeDB(Connection con, PreparedStatement pstmt, ResultSet rs){
if(rs != null){
//关闭结果集
try {
rs.close();
rs = null;
} catch (SQLException e) {
e.printStackTrace();
}
}
if(pstmt != null){
try {
pstmt.close();
pstmt = null;
} catch (SQLException e) {
e.printStackTrace();
}
}
if(con != null){
try {
con.close();
con = null;
} catch (SQLException e) {
e.printStackTrace();
}
}
}
这个是我写的一个基本的连接sql2005数据库的代码,.! 不知道你能不能用,! 你看一下吧, 连接的时候需要sqljdbc.jar数据库驱动,!

‘陆’ php 怎么显示数据库中的数据 求源代码

读数据库，以表格输出的示例代码：

<?php
header('Content-type:text/html;charset=utf-8');
$db = new mysqli('localhost','root','root','books');
$rows = $db->query('SELECT * FROM customers');
echo '<table border="1"><tr><td>姓名</td><td>年龄</td></tr>';
while($row = $rows->fetch_assoc()){
echo '<tr><td>'.$row['name'].'</td>';
echo '<td>'.$row['address'].'</td></tr>';
}
?