1]放FDConnection1和FDQuery1到界面上
2]在OnFormCreate事件里写
FDQuery1.Connection := FDConnection1;
FDConnection1.LoginPrompt:=false; //取消登录提示框
FDConnection1.Open('DriverID=SQLite;Database=test1.Sqlite3');//test1.Sqlite数据库要与E:UniGui_Learn 4OnLineIditomWin32DebugProject1.exe位置一致
3]单条数据
FDQuery1.Open('select id,info from atb where id = 11111 ' );
unimemo1.Text:= FDQuery1.fieldbyname('info').asstring;
4]多条数据
FDQuery1.Open(‘select id,name,info from atb where 1=1’);//只读取第一个
unilistbox1.Items.Add( FDQuery1.fieldbyname('name').asstring);
unimemo1.Text:= FDQuery1.fieldbyname('info').asstring;
FDQuery1.next; //第二个到最后一个
while not FDQuery1.eof do begin
unilistbox1.Items.Add( FDQuery1.fieldbyname('name').asstring);
FDQuery1.next;
end;
----------------插入数据------
var xzxx:string; maxId:integer; begin FDQuery1.Open('select max(id) as maxId from atb; '); maxId:= FDQuery1.fieldbyname('maxId').AsInteger+1; xzxx := stringreplace(uniMemo2.Text, '''', '''''', [rfReplaceAll]); //将 (')-> ('') xzxx := stringreplace(xzxx, #13#10, 'Z~z~', [rfReplaceAll]); //将 (^p)-> (Z~z~) xzxx := 'insert into atb values(' + IntToStr(maxId) + ',''' + StringReplace(uniedit2.Text, '''', '''''', [rfReplaceAll]) + ''',''' + xzxx + ''')'; FDQuery1.ExecSQL(xzxx); Caption:= IntToStr(maxId)+'插入新记录 成功!' ; end;
//好像 不能有英文的感叹号!
文章来源: 博客园
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