Test connection to access database using oledbconnection in C#

  using System; using System.Data; using System.Data.OleDb;   public class Connect { public static void Main () { String connect = "Provider=Microsoft.JET.OLEDB.4.0;data source=.\\my.mdb"; OleDbConnection con = new OleDbConnection(connect); con.Open(); Console.WriteLine("Made the connection to the access database"); con.Close(); } }
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Opening a connection to access database in c#

To create a connection between a database and the web application, the Open() method of the Connection class is called. It is used to open a connection to a data source with the property settings specified by Need and wear have another Dietitian viagra online cream made – the. With and make results. With canadian […]
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Retrieving a database insert Index ID using DBI

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List Valid DSNs for databases using DBI

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List currently installed database drivers using DBI

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Store State in a SQL Server Database in ASP.NET

We can store session information in a SQL Server database. Add the following configuration to the web.config: <sessionState mode="SQLServer" sqlConnectionString="data source=127.0.0.1;Trusted_Connection=yes" cookieless="false" timeout="20" /> The .NET Framework comes with a SQL script (InstallSqlState.sql, located in the same directory as machine.config) to perform initialization of the database on your SQL Server instance, to store session information.
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.NET Framework Data Provider Implementations

.NET Framework Data Provider for ODBC Provides connectivity to any data source that implements an ODBC interface; this includes Microsoft SQL Server, Oracle, and Microsoft Access databases. Data provider classes are contained in the System.Data.Odbc namespace and have the prefix Odbc. .NET Framework Data Provider for OLE DB Provides connectivity to any data source that […]
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MySQL server security measures

Operating system security process can be improved with the following recommendations: Install software as ‘root’ OS user. The file permissions of all MySQL binary and support files are to be owned by ‘root’. Restrict access to the ‘root’ OS user via sudo privileges. Be diligent by only granting access in limited form. Configure an OS […]
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MySQL Security Precautions

Developers/Administrators can improve security for MySQL client access with the following recommendations: Always set a MySQL ‘root’ user password. Change the MySQL ‘root’ user id to a different name, e.g. ‘dba’. Only enable SUPER privileges to dba accounts, and only ever for ‘localhost’. Application user permissions should be as restrictive as possible. Never use ‘%’ […]
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Store email and username in mysql database using php

<?php //opens connnection to mysql server   $dbc = mysql_connect(’localhost’,’root’,”); if (!dbc){ die(’Not Connected:’ . mysql_error()); } //select a database   $db_selected = mysql_select_db("rivals",$dbc); if(!$db_selected) { die("can’t connect :" . mysql_error()); }   $query = "UPDATE `database` SET email=’something’ WHERE username=’rivals’"; $result = mysql_query($query, $dbc) or die(mysql_error());   $username = $_GET[’username’]; $email = $_GET[’email’]; $password […]
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Using MySQLi Object Interface with PHP to insert data

The following is an example of using MySQLi Object Interface with PHP to insert data into a database table. $mydb = new mysqli(’localhost’, ‘username’, ‘password’, ‘databasename’); $sql = "INSERT INTO users (fname, lname, comments) VALUES (‘$_POST[fname]’, ‘$_POST[lname]’, ‘$_POST[comments]’)"; if ($mydb->query($sql) == TRUE) { echo "user entry saved successfully."; } else { echo "INSERT attempt failed" […]
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Connecting to an ODBC Data Source using CSharp

The ODBC .NET data provider can be used to access data exposed through an ODBC driver. The following example creates an OdbcDataAdapter and uses it to fill a DataTable with the product table. // Namespaces, variables, and constants using System; using System.Configuration; using System.Data; using System.Data.Odbc;   private void CButton_Click(object sender, System.EventArgs e) { // […]
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Save PHP sessions to a database

We can use the session_set_save_handler() function to register functions that are working with the database. session_set_save_handler() sets the user-level session storage functions which are used for storing and retrieving data associated with a session. This is most useful when a storage method other than those supplied by PHP sessions is preferred. i.e. Storing the session […]
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Create new Mssql databases with “CREATE DATABASE” statement

Transact-SQL statements can be used to access the database engine directly.To create a database we can use the Query Editor window of the SQL Server management studio. The command to create a database is CREATE DATABASE TestDB GO Additional help information can be obtained on the complete syntax of the CREATE DATABASE by highlighting the […]
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Upload and store files in Mysql using PHP : Part 2 – PHP file processing

To store uploaded files to MySQL database, you can use the normal INSERT statement as shown in the php example listed below: <?php $con = mysql_connect("localhost", "", ""); mysql_select_db("w3m"); $error = $_FILES[’w3img’][’error’]; $tmp_name = $_FILES[’w3img’][’tmp_name’]; $size = $_FILES[’w3img’][’size’]; $name = $_FILES[’w3img’][’name’]; $type = $_FILES[’w3img’][’type’]; print("\n"); if ($error == UPLOAD_ERR_OK && $size > 0) { $fp […]
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Upload and store files in Mysql using PHP : Part 1 – Design MySql Table

A MySQL database can be used to store files uploaded using PHP.The table columns must be created using BLOB columns to hold the binary file.The blob column can hold up to 65,535 characters. Example code: <?php $con = mysql_connect("localhost", "", ""); mysql_select_db("w3m"); $sql = "CREATE TABLE updfiles (" . " id INTEGER NOT NULL AUTO_INCREMENT" […]
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Creating database indexes in PHP MySql

RDBMS like MySql are geared to perform read operations better than write operations. The efficiency in read operations are achieved by database indexes. Indices can have a significant impact on the ability of your applications to manipulate data in a very efficient way in a positive and negative sense. Indices can usually be created on […]
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