初学者寻求delphi+sql数据库例子，大家帮忙！！

Question

各位可否提供delphi+sql数据库操作的例子，简单的也行。小弟刚学。不知如何下手？

Answer 1

很难找到delphi+sql的例子，我有的都是其它数据库的例子。谁有？可否提供？

Answer 2

ADOCONNECTION　ADOTABLE　DATASOURCE
DBGIRD
DBNavigator1
ADOCONNCETION连接到你的数据库中
然后ADOTABLE的CONNECTION属性连到ADOCONNECITON上　连上TABLENAME属性名的表名
DATASOURCE的DATASET属性连到ADOTABLE上
DGGRID的DATASOURCE属性连在DATASOURCE上
DBNAVIGATOR1连到DATASOURCE上就可以了

Answer 3

使用 ADOConnection,ADODataSet,DataSource
设置 ADOConnection 的 ConnectionString，使它连上SQL 數計庫
設置 ADODataSet 的 Connection  為 ADOConnection 的 name,
                   CommandText 為 SQL 语言。
設置 DataSource 的 DataSet 為 ADODataSet 的 name.

Answer 4

这是一个学生信息管理的实例，希望对你有所帮助！！！
unit u_main;interfaceuses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  Db, DBTables, ComCtrls, DBCtrls, StdCtrls, Mask, Grids, DBGrids, ExtCtrls;type
  TForm1 = class(TForm)
    PageControl1: TPageControl;
    TabSheet1: TTabSheet;
    TabSheet2: TTabSheet;
    TabSheet3: TTabSheet;
    TabSheet4: TTabSheet;
    TabSheet5: TTabSheet;
    Database1: TDatabase;
    T_student: TTable;
    DS_student: TDataSource;
    DBGrid1: TDBGrid;
    DBNavigator1: TDBNavigator;
    Label1: TLabel;
    i_stud_id_1: TMaskEdit;
    GroupBox1: TGroupBox;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    i_change: TRadioGroup;
    i_descrip_1: TMemo;
    Label5: TLabel;
    Button1: TButton;
    Button2: TButton;
    T_stud_info_1: TTable;
    DS_stud_info_1: TDataSource;
    DBText1: TDBText;
    DBText2: TDBText;
    DBText3: TDBText;
    T_class_info_1: TTable;
    DS_class_info_1: TDataSource;
    DS_depart_info_1: TDataSource;
    T_depart_info_1: TTable;
    T_counter_c: TTable;
    T_change: TTable;
    Label6: TLabel;
    i_stud_id_2: TMaskEdit;
    GroupBox2: TGroupBox;
    Label7: TLabel;
    Label8: TLabel;
    Label9: TLabel;
    DBText4: TDBText;
    DBText5: TDBText;
    DBText6: TDBText;
    i_reward_level: TRadioGroup;
    Label10: TLabel;
    i_descrip_2: TMemo;
    Button3: TButton;
    Button4: TButton;
    Label11: TLabel;
    i_stud_id_3: TMaskEdit;
    GroupBox3: TGroupBox;
    Label12: TLabel;
    Label13: TLabel;
    Label14: TLabel;
    DBText7: TDBText;
    DBText8: TDBText;
    DBText9: TDBText;
    i_punish_level: TRadioGroup;
    Label15: TLabel;
    i_descrip_3: TMemo;
    Button5: TButton;
    Button6: TButton;
    T_counter_r: TTable;
    T_reward: TTable;
    T_counter_p: TTable;
    T_punish: TTable;
    Label16: TLabel;
    i_stud_id_4: TMaskEdit;
    GroupBox4: TGroupBox;
    Label17: TLabel;
    Label18: TLabel;
    Label19: TLabel;
    Label20: TLabel;
    Label21: TLabel;
    Label22: TLabel;
    Label23: TLabel;
    Label24: TLabel;
    Label25: TLabel;
    DBGrid2: TDBGrid;
    DBGrid3: TDBGrid;
    DBGrid4: TDBGrid;
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    DBEdit3: TDBEdit;
    GroupBox5: TGroupBox;
    DBLookupComboBox1: TDBLookupComboBox;
    DBLookupComboBox2: TDBLookupComboBox;
    T_stud_info_4: TTable;
    DS_stud_info_4: TDataSource;
    Button7: TButton;
    Button8: TButton;
    T_class_info_4: TTable;
    DS_class_info_4: TDataSource;
    T_depart_info_4: TTable;
    DS_depart_info_4: TDataSource;
    T_change_4: TTable;
    DS_change_4: TDataSource;
    T_reward_4: TTable;
    DS_reward_4: TDataSource;
    T_punish_4: TTable;
    DS_punish_4: TDataSource;
    GroupBox6: TGroupBox;
    GroupBox7: TGroupBox;
    Label26: TLabel;
    Label27: TLabel;
    DBLookupComboBox3: TDBLookupComboBox;
    DBMemo1: TDBMemo;
    Button9: TButton;
    Button10: TButton;
    T_change_code_4: TTable;
    DS_change_code_4: TDataSource;
    Label28: TLabel;
    DBLookupComboBox4: TDBLookupComboBox;
    Label29: TLabel;
    DBMemo2: TDBMemo;
    Button11: TButton;
    Button12: TButton;
    T_reward_level_4: TTable;
    DS_reward_level_4: TDataSource;
    Label30: TLabel;
    Label31: TLabel;
    DBRadioGroup1: TDBRadioGroup;
    DBMemo3: TDBMemo;
    DBLookupComboBox5: TDBLookupComboBox;
    Button13: TButton;
    Button14: TButton;
    T_punish_level_4: TTable;
    DS_punish_level_4: TDataSource;
    DBRadioGroup2: TDBRadioGroup;
    procedure FormCreate(Sender: TObject);
    procedure i_stud_id_1Change(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button6Click(Sender: TObject);
    procedure i_stud_id_2Change(Sender: TObject);
    procedure i_stud_id_3Change(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure i_stud_id_4Change(Sender: TObject);
    procedure Button7Click(Sender: TObject);
    procedure Button8Click(Sender: TObject);
    procedure Button9Click(Sender: TObject);
    procedure Button10Click(Sender: TObject);
    procedure Button11Click(Sender: TObject);
    procedure Button12Click(Sender: TObject);
    procedure Button13Click(Sender: TObject);
    procedure Button14Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;var
  Form1: TForm1;implementation{$R *.DFM}

Answer 5

续！！procedure TForm1.FormCreate(Sender: TObject);
begin
//  try
    Database1.Open;
//  except
//    Application.MessageBox('请确认用户名密码！','数据库连接错误',MB_OK);
//    Application.Terminate;
//  end;
  if not Database1.Connected then Application.Terminate;
  T_student.Open;
  DBGrid1.Columns[0].Width:=64;
  DBGrid1.Columns[1].Width:=64;
  DBGrid1.Columns[2].Width:=64;
  DBGrid1.Columns[3].Width:=64;
  DBGrid1.Columns[4].Width:=30;
  DBGrid1.Columns[5].Width:=64;
  DBGrid1.Columns[6].Width:=100;
end;procedure TForm1.i_stud_id_1Change(Sender: TObject);
begin
  T_stud_info_1.Filter:='ID='''+i_stud_id_1.Text+'''';
  T_stud_info_1.Filtered:=True;
  T_stud_info_1.Open;
  T_class_info_1.Open;
  T_depart_info_1.Open;
end;procedure TForm1.Button1Click(Sender: TObject);
begin
  i_stud_id_1.Text:='';
  i_change.ItemIndex:=0;
  i_descrip_1.Clear;
end;procedure TForm1.Button2Click(Sender: TObject);
var
  counter:integer;
begin
  T_stud_info_1.Open;
  if T_stud_info_1.RecordCount>0 then //确认学号是否存在
  begin
    T_counter_c.Open;
    counter:=T_counter_c['COUNTER_VALUE'];
    Inc(counter); //累加学籍变更计数器
    T_counter_c.Edit;
    T_counter_c['COUNTER_VALUE']:=counter;
    T_counter_c.Post;
    T_change.Open;
    //T_change.Edit;
    T_change.AppendRecord([counter, i_stud_id_1.text, i_change.ItemIndex, Now, i_descrip_1.text]);
    Button1Click(nil);
  end
  else
    Application.MessageBox('请确认输入的学号是否正确！', '错误', MB_OK);
end;procedure TForm1.Button4Click(Sender: TObject);
begin
  i_stud_id_2.Text:='';
  i_reward_level.ItemIndex:=0;
  i_descrip_2.Clear;
end;procedure TForm1.Button6Click(Sender: TObject);
begin
  i_stud_id_3.Text:='';
  i_punish_level.ItemIndex:=0;
  i_descrip_3.Clear;
end;procedure TForm1.i_stud_id_2Change(Sender: TObject);
begin
  T_stud_info_1.Filter:='ID='''+i_stud_id_2.Text+'''';
  T_stud_info_1.Filtered:=True;
  T_stud_info_1.Open;
  T_class_info_1.Open;
  T_depart_info_1.Open;
end;procedure TForm1.i_stud_id_3Change(Sender: TObject);
begin
  T_stud_info_1.Filter:='ID='''+i_stud_id_3.Text+'''';
  T_stud_info_1.Filtered:=True;
  T_stud_info_1.Open;
  T_class_info_1.Open;
  T_depart_info_1.Open;
end;procedure TForm1.Button3Click(Sender: TObject);
var
  counter:integer;
begin
  T_stud_info_1.Open;
  if T_stud_info_1.RecordCount>0 then //确认学号是否存在
  begin
    T_counter_r.Open;
    counter:=T_counter_r['COUNTER_VALUE'];
    Inc(counter); //累加奖励记录计数器
    T_counter_r.Edit;
    T_counter_r['COUNTER_VALUE']:=counter;
    T_counter_r.Post;
    T_reward.Open;
    //T_change.Edit;
    T_reward.AppendRecord([counter, i_stud_id_2.text, i_reward_level.ItemIndex, Now, i_descrip_2.text]);
    Button4Click(nil);
  end
  else
    Application.MessageBox('请确认输入的学号是否正确！', '错误', MB_OK);
end;procedure TForm1.Button5Click(Sender: TObject);
var
 counter:integer;
begin
  T_stud_info_1.Open;
  if T_stud_info_1.RecordCount>0 then //确认学号是否存在
  begin
    T_counter_p.Open;
    counter:=T_counter_p['COUNTER_VALUE'];
    Inc(counter); //累加处罚记录计数器
    T_counter_p.Edit;
    T_counter_p['COUNTER_VALUE']:=counter;
    T_counter_p.Post;
    T_punish.Open;
    //T_change.Edit;
    T_punish.AppendRecord([counter, i_stud_id_3.text, i_punish_level.ItemIndex, Now, True, i_descrip_3.text]);
    Button6Click(nil);
  end
  else
    Application.MessageBox('请确认输入的学号是否正确！', '错误', MB_OK);
end;procedure TForm1.i_stud_id_4Change(Sender: TObject);
begin
  T_stud_info_4.Filter:='ID='''+i_stud_id_4.Text+'''';
  T_stud_info_4.Filtered:=True;
  T_stud_info_4.Open;
  T_class_info_4.Open;
  T_depart_info_4.Open;
  T_change_4.Open;
  T_change_code_4.Open;
  T_reward_4.Open;
  T_reward_level_4.Open;
  T_punish_4.Open;
  T_punish_level_4.Open;
end;procedure TForm1.Button7Click(Sender: TObject);
begin
  T_stud_info_4.Post;
end;procedure TForm1.Button8Click(Sender: TObject);
begin
  T_stud_info_4.Cancel;
end;procedure TForm1.Button9Click(Sender: TObject);
begin
  T_change_4.Post;
end;procedure TForm1.Button10Click(Sender: TObject);
begin
  T_change_4.Cancel;
end;procedure TForm1.Button11Click(Sender: TObject);
begin
  T_reward_4.Post;
end;procedure TForm1.Button12Click(Sender: TObject);
begin
  T_reward_4.Cancel;
end;procedure TForm1.Button13Click(Sender: TObject);
begin
  T_punish_4.Post;
end;procedure TForm1.Button14Click(Sender: TObject);
begin
  T_punish.Cancel;
end;end.
我还有，如果你想要的话，给我邮箱，有时间的话我会发给你！！

Answer 6

我也要
[email protected]
谢谢了.

Answer 7

你可以到书店去找一本书：《Delphi 5.x ADO_MTS_COM+高级程序设计篇》李维 著
相当好的，里面大部分都是你要的东东。
用“天网搜索”也可以搜索到。