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Devart.Common Namespace / SqlStatement Class
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In This Topic
    SqlStatement Class
    In This Topic
    Represents a single statement in a script.
    Syntax
    'Declaration
     
    Public Class SqlStatement 
    public class SqlStatement 
    Remarks

    Use SqlStatement to execute individual statements in a script. Each SqlStatement object contains SQL text and information about location of statement in the whole script.

    SqlStatement object can be obtained through DbScript.Statements collection. After originating ScriptText has been modified any obsolete SqlStatement objects can no longer be used.

    Example
    This sample shows how to retrieve collection of statements that make up the script and execute them one by one.
    string script =
    
      "INSERT INTO DEPT VALUES (10,'ACCOUNTING','NEW YORK');"+
      "INSERT INTO DEPT VALUES (20,'RESEARCH','DALLAS');"+
      "INSERT INTO DEPT VALUES (30,'SALES','CHICAGO');"+
      "INSERT INTO DEPT VALUES (40,'OPERATIONS','BOSTON');"+
      "SELECT * FROM DEPT";
    SqlConnection myConn = new SqlConnection(
        "User Id=sa;Server=localhost;Initial Catalog=Test;");
    SqlScript myScript = new SqlScript(script,myConn);
    SqlStatementCollection myColl = myScript.Statements;
    IDataReader myReader;
    myConn.Open();
    foreach (SqlStatement myStatement in myColl)
    {
      Console.WriteLine(myStatement.Text);
      try
      {
        myReader = myStatement.Execute();
        Console.WriteLine("  Records affected " + myReader.RecordsAffected); 
        while (myReader.Read()) 
        { 
          Console.WriteLine(myReader.GetString(0)); 
        } 
        myReader.Close(); 
        Console.WriteLine();
      }
      catch
      {
        Console.WriteLine("  Failed");
      }
    }
    myConn.Close();
    Dim script As String = _
    
        "INSERT INTO DEPT VALUES (10,'ACCOUNTING','NEW YORK');" & _
        "INSERT INTO DEPT VALUES (20,'RESEARCH','DALLAS');" & _
        "INSERT INTO DEPT VALUES (30,'SALES','CHICAGO');" & _
        "INSERT INTO DEPT VALUES (40,'OPERATIONS','BOSTON');" & _
        "SELECT * FROM DEPT"
    Dim myConn As SqlConnection = New SqlConnection( _
        "User Id=sa;Server=localhost;Initial Catalog=Test;")
    Dim myScript As SqlScript = New SqlScript(script, myConn)
    Dim myColl As SqlStatementCollection = myScript.Statements
    Dim myReader As IDataReader
    myConn.Open()
    For Each myStatement As SqlStatement In myColl
      Console.WriteLine(myStatement.Text)
      Try
        myReader = myStatement.Execute()
        Console.WriteLine("  Records affected " & myReader.RecordsAffected)
        While myReader.Read()
          Console.WriteLine(myReader.GetString(0))
        End While
        myReader.Close()
        Console.WriteLine()
      Catch ex As Exception
        Console.WriteLine("  Failed")
      End Try
    Next myStatement
    myConn.Close()
    Inheritance Hierarchy

    System.Object
       Devart.Common.SqlStatement

    Requirements

    Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

    See Also