三个字段属性分别为sdate :date stuno :alph endtime: time 要选取sdate等于date,stuno等于edit1.text,xuehao这一字段数值为空的语句是什么啊, sql.add('select *from sturecord where sdate=:riqi and stuno=:xuehao and endtime=:jssj'); parambyname('riqi').Asdate:=date; parambyname('xuehao').AsString:=edit1.text; parambyname('jssj').Asstring:=
不行啊,老大,什么记录都找不到啊! 三个字段属性分别为sdate :date stuno :alph endtime: time 要选取sdate等于date,stuno等于edit1.text,xuehao这一字段数值为空的语句是什么啊, sql.add('select *from sturecord where sdate=:riqi and stuno=:xuehao and endtime=:jssj'); parambyname('riqi').Asdate:=date; parambyname('xuehao').AsString:=edit1.text; parambyname('jssj').Astime:=