Y yytxt Unregistered / Unconfirmed GUEST, unregistred user! 2002-06-05 #1 我使用ADO数据库组件编程,在查询的过程中我想取得集合函数(如sum)的值, 请问如何取得这些值?(在线等待)
C confidentbb Unregistered / Unconfirmed GUEST, unregistred user! 2002-06-05 #2 id 为集合分组字段名称,money 求和的字段名称 {}中是条件可要,可不要 select id from sum(money) from tbname {where } group by id
M mlzhou Unregistered / Unconfirmed GUEST, unregistred user! 2002-06-05 #3 with adoquery do begin close; sql.clear; sql.text := 'select sum(monery) as aaa from 表名'; open; edit1.text := fieldbyname('aaa').asstring; end;
with adoquery do begin close; sql.clear; sql.text := 'select sum(monery) as aaa from 表名'; open; edit1.text := fieldbyname('aaa').asstring; end;
L lemonloveyan Unregistered / Unconfirmed GUEST, unregistred user! 2002-06-05 #5 mlzhou说得不错。 edit1.text:=floattostr(fieldbyname('aaa').asstring)