Delphi在数据库操作是非常好用的,delphi把ADO一些方法属性都集成了,以下是我的一些总结:
*******************************
通过sql的存储过程来实现:
添加
With ADOQuery1 do
begin
Close;
SQL.Clear;
SQL.Add(' Insert Into Table1(Field1,Field2)')
SQL.Add(' Values(10,20)');
ExecSQL;
end;
修改
With ADOQuery1 do
begin
Close;
SQL.Clear;
SQL.Add(' Update Table1 Set Field1=20,Field2=30)')
ExecSQL;
end;
删除
With ADOQuery1 do
begin
Close;
SQL.Clear;
SQL.Add(' Delete From Table1')
SQL.Add(' Where Field1=20 and Field2=30');
ExecSQL;
end;
查询
With ADOQuery1 do
begin
Close;
SQL.Clear;
SQL.Add(' Select Field1,Field2 From Table1')
SQL.Add(' Where Field1=20 and Field2=30');
Open;
end;
***************************************************
通过Delphi自有的方法属性实现:
添加:
with ADOQuery1 do
append;
......
post;
删除:
with ADOQuery1 do
delete(选择删除的记录); //默认删除记录指针指向的记录
修改:
with ADOQuery1 do
edit;
......
post;
adotable1.Append; //添加
ADotable1.Fields.FieldByName('gxid1').Value:=gx;
adotable1.Post;
adotable1.delete; //删除
adotable1.edit; //修改
ADotable1.Fields.FieldByName('gxid1').Value:=gx;
adotable1.post;
WITHI adoquery do
begin//添加
adoquery.open;//motice set adoquery.sql
adoquery.append;//OR adoquery.insert;
fieldbyname(fieldname).asstring:=trim(edit1.text);
......
adoquery.post;
end;
删除:
adoquery.delete
修改:
adoquery.edit;
fieldbyname(fieldname).asstring:=trim(edit1.text);
来源:oschina
链接:https://my.oschina.net/u/4312704/blog/3682030