Re: Multidatabase query
| От | Vibhor Kumar |
|---|---|
| Тема | Re: Multidatabase query |
| Дата | |
| Msg-id | 49CD6805.9080706@enterprisedb.com обсуждение исходный текст |
| Ответ на | Multidatabase query (Mauro Bertoli <bertoli.mauro@yahoo.it>) |
| Список | pgsql-general |
Hi Mauro,
Not possible in PostgreSQL.
However, you can use dblink for creating query between multidatabase as given below:
select empno from dblink('dbname=edb','SELECT empno from emp') as emp(empno numeric)
union
select empno from dblink('dbname=enterprisedb','SELECT empno from emp') as emp(empno numeric);
where edb and enterprisedb are database names
For More information about dblink, please follow the link given below:
http://www.postgresql.org/docs/current/static/dblink.html
http://www.enterprisedb.com/docs/en/8.3/oracompat/EnterpriseDB_OraCompat_EN_8.3-49.htm
Regards,
Vibhor Kumar
www.enterprisedb.com
Mauro Bertoli wrote:
Not possible in PostgreSQL.
However, you can use dblink for creating query between multidatabase as given below:
select empno from dblink('dbname=edb','SELECT empno from emp') as emp(empno numeric)
union
select empno from dblink('dbname=enterprisedb','SELECT empno from emp') as emp(empno numeric);
where edb and enterprisedb are database names
For More information about dblink, please follow the link given below:
http://www.postgresql.org/docs/current/static/dblink.html
http://www.enterprisedb.com/docs/en/8.3/oracompat/EnterpriseDB_OraCompat_EN_8.3-49.htm
Regards,
Vibhor Kumar
www.enterprisedb.com
Mauro Bertoli wrote:
Hi all, is possible in PostgreSQL to create query between multidatabase like Sql Server 2005? An example: SELECT db1.a.id FROM db1.a UNION db2.b.id FROM db2.b Where "db1" is a database and "db2" is another database. "a" is a table in database "db1" and "b" is a table in database "db2" Best regards, Mauro
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