в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

Admin: 1 версия

2010-05-26T12:19:13Z

1 версия

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==Execute Scalar==

<source lang="csharp">using System;
using System.Data;
using System.Data.SqlClient;
class MainClass
{
public static void Main()
{
using (SqlConnection con = new SqlConnection())
{
con.ConnectionString = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;";
con.Open();
// Create and configure a new command.
IDbCommand com = con.CreateCommand();
com.rumandType = CommandType.Text;
com.rumandText = "SELECT COUNT(*) FROM Employee";

// Execute the command and cast the result.
int result = (int)com.ExecuteScalar();

Console.WriteLine("Employee count = " + result);
}
}
}</source>

==Update data using SQL update clause==

<source lang="csharp">using System;
using System.Data;
using System.Data.SqlClient;
class MainClass
{
public static void Main()
{
using (SqlConnection con = new SqlConnection())
{
con.ConnectionString = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;";
con.Open();
// Create and configure a new command.
IDbCommand com = con.CreateCommand();
com.rumandType = CommandType.Text;
com.rumandText = "UPDATE Employee SET FirstName = "S"" +
" WHERE Id = "5"";

// Execute the command and process the result.
int result = com.ExecuteNonQuery();

if (result == 1)
{
Console.WriteLine("Employee title updated.");
}
else
{
Console.WriteLine("Employee title not updated.");
}
}
}
}</source>

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Csharp/CSharp Tutorial/ADO.Net/IDbCommand - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия