public override void Prepare() { if ((db2Conn == null) || (db2Conn.State != ConnectionState.Open)) { throw new InvalidOperationException("Prepare needs an open connection"); } CloseStatementHandle(false); if (hwndStmt == IntPtr.Zero) { AllocateStatement("InternalExecuteNonQuery"); } short sqlRet = 0; IntPtr numParams = IntPtr.Zero; sqlRet = DB2CLIWrapper.SQLPrepare(hwndStmt, commandText, commandText.Length); DB2ClientUtils.DB2CheckReturn(sqlRet, DB2Constants.SQL_HANDLE_STMT, hwndStmt, "SQLPrepare error.", db2Conn); statementOpen = true; prepared = true; }