常用的数据库连接程序
以下是工作中收集几个的数据库连接程序,可用于测试数据库。 access 2003连接程序(asp): % dim dbpath,connstr,conn dbpath="#bjbaidu.mdb" connstr="DRIVER=Microsoft Access Driver (*.mdb);DBQ="server.mappath(dbpath) Set conn = Server.CreateObject(
dbpath="#bjbaidu.mdb"
connstr="DRIVER=Microsoft Access Driver (*.mdb);DBQ="&server.mappath(dbpath)
Set conn = Server.CreateObject("ADODB.Connection")
conn.Open connstr
%>
dbpath="123.accdb"
connstr="DRIVER=Microsoft Access Driver (*.mdb, *.accdb);DBQ="&server.mappath(dbpath)
Set conn = Server.CreateObject("ADODB.Connection")
conn.Open connstr
%>
* 创建ADO连接
*/
$conn = @new COM("ADODB.Connection") or die ("ADO Connection faild.");
$connstr = "DRIVER={Microsoft Access Driver (*.mdb)}; DBQ=" . realpath("#bjbaidu.mdb");
$conn->open($connstr);
/*
* 创建记录集
*/
$rs = @new COM("ADODB.RecordSet");
$rs->open("select * from bj_link",$conn,1,3);
/*
* 循环读取数据
*/
while(!$rs->eof){
echo $rs->fields['Title']->Value;
echo "
";
$rs->movenext(); //将记录集指针下移
}
$rs->close();
?>
$mysql_server_name="222.76.214.216"; //数据库服务器名称
$mysql_username="sunhillscn"; // 连接数据库用户名
$mysql_password="123"; // 连接数据库密码
$mysql_database="sunhillscn"; // 数据库的名字
// 连接到数据库
$conn=mysql_connect($mysql_server_name, $mysql_username,
$mysql_password);
// 从表中提取信息的sql语句
$strsql="select * from cnscms_article limit 5";
// 执行sql查询
$result=mysql_db_query($mysql_database, $strsql, $conn);
// 获取查询结果
$row=mysql_fetch_row($result);
echo '';
echo '
'. mysql_field_name($result, $i); echo " | \n";
'; echo "$row[$i]"; echo ' | ';
echo "";
// 释放资源
mysql_free_result($result);
// 关闭连接
mysql_close();
?>

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











Is the clock app missing from your phone? The date and time will still appear on your iPhone's status bar. However, without the Clock app, you won’t be able to use world clock, stopwatch, alarm clock, and many other features. Therefore, fixing missing clock app should be at the top of your to-do list. These solutions can help you resolve this issue. Fix 1 – Place the Clock App If you mistakenly removed the Clock app from your home screen, you can put the Clock app back in its place. Step 1 – Unlock your iPhone and start swiping to the left until you reach the App Library page. Step 2 – Next, search for “clock” in the search box. Step 3 – When you see “Clock” below in the search results, press and hold it and

Are you getting "Unable to allow access to camera and microphone" when trying to use the app? Typically, you grant camera and microphone permissions to specific people on a need-to-provide basis. However, if you deny permission, the camera and microphone will not work and will display this error message instead. Solving this problem is very basic and you can do it in a minute or two. Fix 1 – Provide Camera, Microphone Permissions You can provide the necessary camera and microphone permissions directly in settings. Step 1 – Go to the Settings tab. Step 2 – Open the Privacy & Security panel. Step 3 – Turn on the “Camera” permission there. Step 4 – Inside, you will find a list of apps that have requested permission for your phone’s camera. Step 5 – Open the “Camera” of the specified app

Apple's latest releases of iOS18, iPadOS18 and macOS Sequoia systems have added an important feature to the Photos application, designed to help users easily recover photos and videos lost or damaged due to various reasons. The new feature introduces an album called "Recovered" in the Tools section of the Photos app that will automatically appear when a user has pictures or videos on their device that are not part of their photo library. The emergence of the "Recovered" album provides a solution for photos and videos lost due to database corruption, the camera application not saving to the photo library correctly, or a third-party application managing the photo library. Users only need a few simple steps

To handle database connection errors in PHP, you can use the following steps: Use mysqli_connect_errno() to obtain the error code. Use mysqli_connect_error() to get the error message. By capturing and logging these error messages, database connection issues can be easily identified and resolved, ensuring the smooth running of your application.

How to use MySQLi to establish a database connection in PHP: Include MySQLi extension (require_once) Create connection function (functionconnect_to_db) Call connection function ($conn=connect_to_db()) Execute query ($result=$conn->query()) Close connection ( $conn->close())

Using the database callback function in Golang can achieve: executing custom code after the specified database operation is completed. Add custom behavior through separate functions without writing additional code. Callback functions are available for insert, update, delete, and query operations. You must use the sql.Exec, sql.QueryRow, or sql.Query function to use the callback function.

JSON data can be saved into a MySQL database by using the gjson library or the json.Unmarshal function. The gjson library provides convenience methods to parse JSON fields, and the json.Unmarshal function requires a target type pointer to unmarshal JSON data. Both methods require preparing SQL statements and performing insert operations to persist the data into the database.

PHP database connection guide: MySQL: Install the MySQLi extension and create a connection (servername, username, password, dbname). PostgreSQL: Install the PgSQL extension and create a connection (host, dbname, user, password). Oracle: Install the OracleOCI8 extension and create a connection (servername, username, password). Practical case: Obtain MySQL data, PostgreSQL query, OracleOCI8 update record.
