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Devart.Common Namespace / SqlStatement Class
Members Example

SqlStatement Class
Represents a single statement in a script.
Syntax
'Declaration
 
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 =
"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);
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 = _
  "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;")
Dim myScript As OracleScript = New OracleScript(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
      Devart.Data.Oracle.OracleSqlStatement

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