ADO.NET database access ExecuteNonQuery method of -SqlConnection sqlcommand

Original link: http://www.cnblogs.com/beio/archive/2013/01/23/2871958.html

. 1   the SqlConnection con = new new the SqlConnection (); // define objects sqlconnecyion
 2          con.ConnectionString = " Server Database .; = = **; UID = SA; pwd =; " ; // specified con connection string property
 . 3          the try 
. 4          {
 . 5              con.Open ();
 . 6              Response.Write ( " success " );
 . 7              con.Close ();
 . 8          }
 . 9          the catch 
10         {
 . 11              Response.Write ( " failure " );
 12 is            con.Close ();
 13 is         }

 Connect to the database

. 1 the SqlConnection CON = new new the SqlConnection ();
 2          con.ConnectionString = " Server Database .; = = airline reservation system; UID = SA; pwd =; " ;
 . 3          the SqlCommand COM = new new the SqlCommand ();
 . 4          com.Connection = CON ;
 . 5          com.CommandText = " Update table set flight aircraft type = 'Boeing 787' where aircraft type = '2' " ;
 . 6          the try 
. 7          {
 . 8              con.Open ();
 . 9              the try 
10              {
 . 11                  com.ExecuteNonQuery (); / /Calling the ExecuteNonQuery () method of data updating is completed 
12                  / * ** test execution affected rows
 13                   * larger than the display only if the affected successfully modified row 0
 14                   * 0 line data without modification under the influence
 15                   * or performed modification failed error display
 16                  ** * / 
. 17                  IF (com.ExecuteNonQuery ()> 0 ) 
 18 is                  {
 . 19                      Response.Write ( " modified successfully " );
 20 is                  }
 21 is                  the else 
22 is                  {
 23 is                      Response.Write ( " no modified data ");
 24  
25                  }
 26 is              }
 27              the catch (Exception)
 28              {
 29                  Response.Write ( " modification failure " );
 30              }
 31 is              con.Close ();
 32          }
 33 is          the catch (Exception)
 34 is          {
 35              Response.Write ( " Database open failed " );
 36              con.Close ();
 37 [          }

 Updating data using a connector used to perform updata, insert, delete and other statements on time will result in data changes

Reproduced in: https: //www.cnblogs.com/beio/archive/2013/01/23/2871958.html