main.pas

ODAC 5.7.0.28

unit Main;

interface

uses
{$IFNDEF LINUX}
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  DBCtrls, ExtCtrls, Grids, DBGrids, StdCtrls, ToolWin, ComCtrls, OdacVcl,
{$ELSE}
  SysUtils, Types, Classes, QGraphics, QControls, QForms, QDialogs, QStdCtrls,
  QDBCtrls, QComCtrls, QExtCtrls, QGrids, QDBGrids, OdacClx,
{$ENDIF}
  MemDS, DBAccess, Ora, DB;

type
  TfmMain = class(TForm)
    OraSession: TOraSession;
    OraQuery: TOraQuery;
    DBGrid: TDBGrid;
    DataSource: TDataSource;
    ConnectDialog: TConnectDialog;
    ToolBar: TPanel;
    btOpen: TButton;
    btClose: TButton;
    btPrepare: TButton;
    btUnPrepare: TButton;
    btExecute: TButton;
    meSQL: TMemo;
    StatusBar: TStatusBar;
    Panel1: TPanel;
    DBNavigator1: TDBNavigator;
    btBreak: TButton;
    cbNonBlocking: TCheckBox;
    cbFetchAll: TCheckBox;
    btLock: TButton;
    btRefreshRecord: TButton;
    cbDebug: TCheckBox;
    btShowState: TButton;
    cbUseNet: TCheckBox;
    procedure btOpenClick(Sender: TObject);
    procedure btCloseClick(Sender: TObject);
    procedure btPrepareClick(Sender: TObject);
    procedure btUnPrepareClick(Sender: TObject);
    procedure btExecuteClick(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure meSQLExit(Sender: TObject);
    procedure btBreakClick(Sender: TObject);
    procedure cbNonBlockingClick(Sender: TObject);
    procedure OraQueryAfterExecute(Sender: TObject; Result: Boolean);
    procedure cbFetchAllClick(Sender: TObject);
    procedure btLockClick(Sender: TObject);
    procedure btRefreshRecordClick(Sender: TObject);
    procedure cbDebugClick(Sender: TObject);
    procedure btShowStateClick(Sender: TObject);
    procedure cbUseNetClick(Sender: TObject);
  private
    { Private declarations }
    procedure ShowState;
  public
    { Public declarations }
  end;

var
  fmMain: TfmMain;

implementation

{$R *.nfm}

procedure TfmMain.ShowState;
var
  St:string;

  procedure AddSt(S:string);
  begin
    if St <> '' then
      St := St + ', ';
    St := St + S;
  end;

begin
  St := '';

  if OraQuery.Prepared then begin
    AddSt('Prepared');

    if OraQuery.IsQuery then
      AddSt('IsQuery');

    if OraQuery.IsPLSQL then
      AddSt('IsPLSQL');
  end;

  if OraQuery.Active then
    AddSt('Active')
  else
    AddSt('Inactive');

  if OraQuery.Executing then
    AddSt('Executing');

  if OraQuery.Fetching then
    AddSt('Fetching');

  StatusBar.Panels[0].Text := St;
end;

procedure TfmMain.meSQLExit(Sender: TObject);
begin
  if Trim(OraQuery.SQL.Text) <> Trim(meSQL.Lines.Text) then
    OraQuery.SQL.Text := meSQL.Lines.Text;
  ShowState;
end;

procedure TfmMain.btOpenClick(Sender: TObject);
begin
  try
    OraQuery.Open;
  finally
    ShowState;
  end;
end;

procedure TfmMain.btCloseClick(Sender: TObject);
begin
  OraQuery.Close;
  ShowState;
end;

procedure TfmMain.btPrepareClick(Sender: TObject);
begin
  try
    OraQuery.Prepare;
  finally
    ShowState;
  end;
end;

procedure TfmMain.btUnPrepareClick(Sender: TObject);
begin
  OraQuery.UnPrepare;
  ShowState;
end;

procedure TfmMain.btExecuteClick(Sender: TObject);
begin
  try
    OraQuery.Execute;
  finally
    ShowState;
  end;
end;

procedure TfmMain.FormShow(Sender: TObject);
begin
  meSQL.Lines.Assign(OraQuery.SQL);
  ShowState;

  cbNonBlocking.Checked := OraQuery.NonBlocking;
  cbFetchAll.Checked := OraQuery.FetchAll;
  cbDebug.Checked := OraQuery.Debug;
  cbUseNet.Checked := OraSession.Options.Net;  
end;

procedure TfmMain.btBreakClick(Sender: TObject);
begin
  try
    OraQuery.BreakExec;
  finally
    ShowState;
  end;
end;

procedure TfmMain.cbNonBlockingClick(Sender: TObject);
begin
  OraQuery.NonBlocking := cbNonBlocking.Checked;
end;

procedure TfmMain.OraQueryAfterExecute(Sender: TObject; Result: Boolean);
begin
  ShowState;

  if Result then
    StatusBar.Panels[0].Text := StatusBar.Panels[0].Text + '   >>>> Success'
  else
    StatusBar.Panels[0].Text := StatusBar.Panels[0].Text + '   >>>> Fail';

{$IFDEF MSWINDOWS}
  MessageBeep(1);
{$ENDIF}
end;

procedure TfmMain.cbFetchAllClick(Sender: TObject);
begin
  OraQuery.FetchAll := cbFetchAll.Checked;
end;

{SELECT * FROM Scott.Dept}

procedure TfmMain.btLockClick(Sender: TObject);
begin
  OraQuery.Lock;
end;

procedure TfmMain.btRefreshRecordClick(Sender: TObject);
begin
  OraQuery.RefreshRecord;
end;

procedure TfmMain.cbDebugClick(Sender: TObject);
begin
  OraQuery.Debug := cbDebug.Checked;
end;

procedure TfmMain.btShowStateClick(Sender: TObject);
begin
  ShowState;
end;

procedure TfmMain.cbUseNetClick(Sender: TObject);
begin
  OraSession.Options.Net := cbUseNet.Checked;
end;

end.