Обсуждение: making two tables with identical schemas appear as one
making two tables with identical schemas appear as one
От
o.blomqvist@secomintl.com (Otto Blomqvist)
Дата:
Hello ! I have a couple of tables with the same schema that I would like to query and view as one table. I looked into CREATE VIEW and FULL JOINs but still can't figure out a good (fast) way of doing this.. Any ideas ? /Otto Blomqvist
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Hi,
> I have a couple of tables with the same schema that I would like to
> query and view as one table. I looked into CREATE VIEW and FULL JOINs
> but still can't figure out a good (fast) way of doing this..
It depends on the specific way you want to bring the tables together.
Without more specific information nobody will be able to help.
Somehow I suspect you are looking for UNION:
CREATE VIEW
bothTables
AS SELECT
x, y, z
FROM tableA
UNION SELECT
x, y, z
FROM tableB
;
Mit freundlichem Gruß / With kind regards
Holger Klawitter
- --
lists <at> klawitter <dot> de
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Do you mean create view MyView as select * from table1 union select * from table2; John Sidney-Woollett Otto Blomqvist wrote: > Hello ! > > I have a couple of tables with the same schema that I would like to > query and view as one table. I looked into CREATE VIEW and FULL JOINs > but still can't figure out a good (fast) way of doing this.. > > Any ideas ? > > /Otto Blomqvist > > ---------------------------(end of broadcast)--------------------------- > TIP 4: Don't 'kill -9' the postmaster
On Fri, Aug 20, 2004 at 10:40:43AM +0100, John Sidney-Woollett wrote: > Do you mean > > create view MyView as > select * from table1 > union > select * from table2; Be sure to understand the difference between UNION and UNION ALL if you are going to do this ... -- Alvaro Herrera (<alvherre[a]dcc.uchile.cl>) "No reniegues de lo que alguna vez creíste"