Cross database queries
Hi
Suppose I have two databases on one server (lets call them DB_A and DB_B)
and I was to write a cross database query. How do I do this in PostgreSQL?
On MS-SQL I would do something like:
SELECT ta.Field1, ta.Field2, tb.Field2
FROM DB_A.dbo.SomeTable ta
JOIN DB_B.dbo.SomeOtherTable tb
ON ta.Field1 = tb.Field1
Thanks
Craig
On 8/9/05 10:21 AM, "postgresql@bryden.co.za" <postgresql@bryden.co.za>
wrote:
Hi
Suppose I have two databases on one server (lets call them DB_A and DB_B)
and I was to write a cross database query. How do I do this in PostgreSQL?On MS-SQL I would do something like:
SELECT ta.Field1, ta.Field2, tb.Field2
FROM DB_A.dbo.SomeTable ta
JOIN DB_B.dbo.SomeOtherTable tb
ON ta.Field1 = tb.Field1
See /contrib/dblink in the postgresql source distribution.
Sean
postgresql@bryden.co.za wrote:
Hi
Suppose I have two databases on one server (lets call them DB_A and DB_B)
and I was to write a cross database query. How do I do this in PostgreSQL?
Either use the dblink module from contrib/ or merge them into one
database but different schemas.
--
Richard Huxton
Archonet Ltd