Create SqlCommand with both sql query and connection : SqlCommand « ADO.Net « C# / CSharp Tutorial

Home
C# / CSharp Tutorial
1.Language Basics
2.Data Type
3.Operator
4.Statement
5.String
6.struct
7.Class
8.Operator Overload
9.delegate
10.Attribute
11.Data Structure
12.Assembly
13.Date Time
14.Development
15.File Directory Stream
16.Preprocessing Directives
17.Regular Expression
18.Generic
19.Reflection
20.Thread
21.I18N Internationalization
22.LINQ
23.GUI Windows Forms
24.Windows Presentation Foundation
25.Windows Communication Foundation
26.Workflow
27.2D
28.Design Patterns
29.Windows
30.XML
31.XML LINQ
32.ADO.Net
33.Network
34.Directory Services
35.Security
36.unsafe
C# / CSharp Tutorial » ADO.Net » SqlCommand 




using System;
using System.Data;
using System.Data.SqlClient;

class CommandScalar
{
   static void Main()
   {
      SqlConnection conn = new SqlConnection("server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");

      string sql = @"select count(*) from employee";

      SqlCommand cmd = new SqlCommand(sql, conn);
      Console.WriteLine("Command created and connected.");

      try
      {
         conn.Open();

         Console.WriteLine("Number of Employees is {0}", cmd.ExecuteScalar());
      }
      catch (SqlException ex)
      {
         Console.WriteLine(ex.ToString());
      }
      finally
      {
         conn.Close();
         Console.WriteLine("Connection Closed.");
      }
   }
}
Command created and connected.
Number of Employees is 4
Connection Closed.














32.18.SqlCommand
32.18.1.Create a SqlCommand
32.18.2.Create SqlCommand with both sql query and connection
32.18.3.SqlCommand: AutoClose
32.18.4.Execute two sql commands
32.18.5.Asynchronous Processing Sql command
32.18.6.Start process of retrieving a data reader asynchronously, check the IsCompleted property value.
32.18.7.SqlCommand with Callback Handler
32.18.8.Add parameters to the SqlCommand
32.18.9.SQL StoredProcedure
32.18.10.Execute Scalar with SqlCommand
32.18.11.Execute the scalar SQL statement and store results
32.18.12.Executing a Parameterized Query with SqlCommand
32.18.13.Batch Update Demo
32.18.14.Execute update statement with SqlCommand against MDF file
32.18.15.Executing a Query That Returns a Single Value
32.18.16.Async Command Object Demo
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.