帮忙，数据库查询问题(200分)

query1.SQL.Clear;
query1.SQL.Add('select *'); // , (价格) as 最底价名称,价格
query1.SQL.Add('from jiage');
query1.SQL.Add('where 价格=');
query1.SQL.Add('(select min(价格) from jiage a');
query1.SQL.Add('where a.name=jiage.name) ');
query1.Open;

query1.SQL.Clear;
query1.SQL.Add('select * from jiage');
query1.SQL.Add('where (名称,价格) in');
query1.SQL.Add('(select 名称,min(价格) from jiage group by 名称)');
query1.Open;

多人接受答案了。