C Simple Connection to sql Database
- 2021-10-16 02:26:05
- OfStack
In this paper, an example is given to describe the simple connection method of C # to sql database. Share it for your reference, as follows:
using System;
using System.Collections.Generic;
using System.Text;
// Database operation object library
using System.Data;
using System.Data.SqlClient;
using worddic;
namespace testDB
{
class Program
{
static void Main(string[] args)
{
//char[] array = new char[2] ;
string [] a = new string[2];
FileOp words = new FileOp();
words.openfile("worddic.txt");
words.getwords(ref a);
/* Console.WriteLine(" Please enter Data Source : ");
string data_source = Console.ReadLine();
Console.WriteLine(" Please enter Initial Catalog : ");
string initial_catalog = Console.ReadLine();
Console.WriteLine(" Please enter user id : ");
string user_id = Console.ReadLine();
Console.WriteLine(" Please enter pass word : ");
string pword = Console.ReadLine();
// Connection string
string strConn ="Data Source="+data_source+";Initial Catalog="+initial_catalog+";User ID="+user_id+";Password="+pword+"";//YourPwd Replace with the one you set sa Account password
*/
string strConn = "Data Source=HYPER-V-WIN2003\\SQLSRV2005;Initial Catalog=Mytest;User ID=sa;Password=sa";
SqlConnection conn = null;
SqlCommand sqlCmd = null;
try
{
// Create connection Object
conn = new SqlConnection(strConn);
// Open a database connection
conn.Open();
// Create Transac Sql Command object
sqlCmd = conn.CreateCommand();
// Create a table building statement
//sqlCmd.CommandText = "create table wordlist(wrongwords varchar(30),rightwords varchar(30),sign char(20),)";
//sqlCmd.ExecuteScalar();
while (a[0] != null) {
sqlCmd.CommandText ="insert into wordlist(wrongwords,rightwords,sign) values('" + a[0] + "','" + a[1] + "',1 )";
sqlCmd.ExecuteScalar();
a[0] = null;
a[1] = null;
words.getwords(ref a);
}
words.fileclose();
Console.WriteLine();
// Print all records
}
catch (SqlException e)
{
Console.WriteLine(e.Message);
}
finally
{
conn.Close();
}
Console.WriteLine(" When the program ends, press any key to exit ");
Console.ReadKey();
}
}
}
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