create table league
(LeagueId varchar(3) constraint league primary key,
name varchar(50),
Sport varchar(50));
create table team
(TeamId varchar(3) constraint team primary key,
Name varchar(50),
City varchar(50));
league和team是1-m的关系,字段就这么多,现在用jbuilder在weblogic rdbms relation editor中该用选择哪两个字段来关联?
你数据库要用哪两个字段关联 ?
建议再team里加上leagueid字段,否则你怎么关联??
我的理解是要不就只在建表时把pk建好;要不就只在entitybean之间建立关联,不建pk;
应该是两种都要,不过j2ee tutorial的例子又……