Execute Method (DbScript)

In This Topic

Executes the script specified in ScriptText property.

Syntax

Visual Basic
C#

'Declaration
 
Public Sub Execute()

public void Execute()

Remarks

Use Execute method to execute the script. Text of the script should be specified by ScriptText property.

After execution of each individual statement the Progress event fires. If the statement has produced an error, event Error fires.

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 =
"DROP TABLE DEPT;"+
"CREATE TABLE DEPT ("+
"  DEPTNO NUMBER(38) NOT NULL,"+
"  DNAME VARCHAR2(14),"+
"  LOC VARCHAR2(13)"+
");"+
  "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";
      OracleConnection myConn = new OracleConnection(
          "User Id=Scott;Password=tiger;Data Source=Ora;");
      OracleScript myScript = new OracleScript(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.Oracle.OracleScript

  Sub Main()
    Dim script As String = _
  "DROP TABLE DEPT;" & _
  "CREATE TABLE DEPT (" & _
  "  DEPTNO NUMBER(38) NOT NULL," & _
  "  DNAME VARCHAR2(14)," & _
  "  LOC VARCHAR2(13)" & _
  ");" & _"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 OracleConnection = New OracleConnection( _
        "User Id=Scott;Password=tiger;Data Source=Ora;")
    myScript = New OracleScript(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

Reference

DbScript Class
DbScript Members
ScriptText Property
ExecuteNext Method
Progress Event
Error Event

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