var
a:tdatetime;
begin
a:=2004-09.21;
ADOTable1.close;
ADOTable1.sql.text:='select *from aaa where hire_date>'''+a+'''';
ADOTable1.open;
end;
怎么老是错弄？各位老大在这如何用那一个时间变量。帮帮我吧？