SqlScript Class

In This Topic

Serves to execute series of SQL statements separated by special symbols.

Syntax

Visual Basic
C#

'Declaration
 
Public Class SqlScript 
   Inherits Devart.Common.DbScript
   Implements System.ComponentModel.IComponent, System.IDisposable

public class SqlScript : Devart.Common.DbScript, System.ComponentModel.IComponent, System.IDisposable

Remarks

Often it is necessary to execute several SQL statements one by one. It can be performed by using a lot of components such as SqlCommand. Usually it isn't a good solution. With only one SqlScript component you can execute several SQL statements as one. This sequence of statements is named script. To separate individual statements use semicolon (;) symbol.

Example

This sample demonstrates how to execute script and retrieve information about execution flow using Progress and Error events.

csharp

[STAThread]
static void Main(string[] args)
{
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);
      myScript.Progress += new Devart.Common.ScriptProgressEventHandler(OnProgress);
      myScript.Error += new Devart.Common.ScriptErrorEventHandler(OnError);
      myConn.Open();
      myScript.Execute();
      myConn.Close();
    }

static void OnProgress(object sender, Devart.Common.ScriptProgressEventArgs e)
{
  Console.WriteLine(e.Text);
  Console.WriteLine("  Successfully executed.");
}

static void OnError(object sender, Devart.Common.ScriptErrorEventArgs e)
{
  e.Ignore = true;
  Console.WriteLine(e.Text);
  Console.WriteLine("  Failed.");
}

Visual Basic

Module Module1

  Friend WithEvents myScript As Devart.Data.SqlServer.SqlScript

  Sub Main()
    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;")
    myScript = New SqlScript(script, myConn)
    myConn.Open()
    myScript.Execute()
    myConn.Close()
    Console.ReadLine()
  End Sub

  Sub OnProgress(ByVal sender As Object, ByVal e As Devart.Common.ScriptProgressEventArgs) Handles myScript.Progress
    Console.WriteLine(e.Text)
    Console.WriteLine("  Successfully executed.")
  End Sub

  Sub OnError(ByVal sender As Object, ByVal e As Devart.Common.ScriptErrorEventArgs) Handles myScript.Error
    e.Ignore = True
    Console.WriteLine(e.Text)
    Console.WriteLine("  Failed.")
  End Sub

End Module

Inheritance Hierarchy

System.Object
   System.MarshalByRefObject
      System.ComponentModel.Component
         Devart.Common.DbScript
            Devart.Data.SqlServer.SqlScript

Reference

SqlScript Members
Devart.Data.SqlServer Namespace
SqlCommand Class

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