DB2数据库中如何实现Oracle的某些功能

5.内连接INNER JOIN的Oracle和DB2的写法

Oracle可以这样实现﹕ Select a.* from bsempms a,bsdptms b where a.dpt_no=b.dpt_no; DB2 可以这样实现﹕ Select * from db2admin.bsempms inner join db2admin.bsdptms on db2admin.bsempms.dpt_no=db2admin.bsdptms.dpt_no;

6.外连接的Oracle和DB2的写法(右外连接,左外连接,完全外连接,组合外连接)

Oracle可以这样实现﹕

Select a.* from bsempms a,bsdptms b where a.dpt_no=b.dpt_no(+);

Select a.* from bsempms a,bsdptms b wherea.dpt_no(+)=b.dpt_no;

DB2 可以这样实现﹕

Select * from db2admin.bsempms right outer join db2admin.bsdptms

on db2admin.bsempms.dpt_no=db2admin.bsdptms.dpt_no;

Select * from db2admin.bsempms left outer join db2admin.bsdptms

on db2admin.bsempms.dpt_no=db2admin.bsdptms.dpt_no;

Select * from db2admin.bsempms full outer join db2admin.bsdptms

on db2admin.bsempms.dpt_no=db2admin.bsdptms.dpt_no;

7.如何执行脚本SQL文件的Oracle和DB2的写法

Oracle 可以这样实现﹕

SQL>@$PATH/filename.sql;

<>BDB2 可以这样实现﹕

db2 -tvf $PATH/filename.sql 文件中每行以 ; 结尾