SQL code returns error

Question

I'm trying to retrieve data from two different databases in the same server, the code return error. please help me.
select a.segment3, b.descr, b.leader, a.Sum(period_activity_a) from payman.dbo.snp_op_detail a
inner join hrman.dbo.organisation_t b
on a.segment3 = b.org_member_id
where a.segment3 between 4000 and 5999 and
a.segment2 != 6651 and
a.segment2 between 5400 and 8999 and
a.period_name in ('JAN-11', 'FEB-11', 'MAR-11', 'APR-11', 'MAY-11', 'JUN-11', 'JUL-11', 'AUG-11', 'SEP-11','OCT-11','NOV-11')
group by rollup (a.segment3,b.descr);
Edited by: OlaTunde on 19-Jan-2012 01:13

Answer 1

Please, whenever you post a question stating "the code return error", then post the complete error stack you get. How can we help if we do not know what error?
Your syntax for accessing other databases looks like MS/SQL syntax to me? That will not work in Oracle. You need a [url http://docs.oracle.com/cd/E11882_01/server.112/e26088/statements_5005.htm#i2061505]database link.
When you have the database link, you access data from the other database using something like:
select column_names from schema_name.table_name@dblink_name;(I assume it is two Oracle databases you wish to get data from - otherwise you need to look into heterogenous gateway ;-) )