Execute Method (SqlStatement)

In This Topic

Executes the statement and returns result set.

Syntax

Visual Basic
C#

'Declaration
 
Public Function Execute() As IDataReader

public IDataReader Execute()

Return Value

Result set returned by the statement execution.

Remarks

This method is an alternative to Execute and ExecuteNext methods. It allows you to execute statements individually in any order. Note that Execute of SqlStatement does not generate Error or Progress event.

Example

This sample shows how to retrieve collection of statements that make up the script and execute them one by one.

csharp

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";
DB2Connection db2Conn = new DB2Connection(
    "user id=db2admin;server=db2;database=SAMPLE;");
DB2Script db2Script = new DB2Script(script,db2Conn);
SqlStatementCollection db2Coll = db2Script.Statements;
IDataReader db2Reader;
db2Conn.Open();
foreach (SqlStatement db2Statement in db2Coll)
{
  Console.WriteLine(db2Statement.Text);
  try
  {
    db2Reader = db2Statement.Execute();
    Console.WriteLine("  Records affected " + db2Reader.RecordsAffected); 
    while (db2Reader.Read()) 
    { 
      Console.WriteLine(db2Reader.GetString(0)); 
    } 
    db2Reader.Close(); 
    Console.WriteLine();
  }
  catch
  {
    Console.WriteLine("  Failed");
  }
}
db2Conn.Close();

Visual Basic

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 db2Conn As DB2Connection = New DB2Connection( _
    "user id=db2admin;server=db2;database=SAMPLE;")
Dim db2Script As DB2Script = New DB2Script(script, db2Conn)
Dim db2Coll As SqlStatementCollection = db2Script.Statements
Dim db2Reader As IDataReader
db2Conn.Open()
For Each db2Statement As SqlStatement In db2Coll
  Console.WriteLine(db2Statement.Text)
  Try
    db2Reader = db2Statement.Execute()
    Console.WriteLine("  Records affected " & db2Reader.RecordsAffected)
    While db2Reader.Read()
      Console.WriteLine(db2Reader.GetString(0))
    End While
    db2Reader.Close()
    Console.WriteLine()
  Catch ex As Exception
    Console.WriteLine("  Failed")
  End Try
Next db2Statement
db2Conn.Close()

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

Reference

SqlStatement Class
SqlStatement Members
Text Property

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