cross-database

In Postgres, you can link to your other databases using dblink , but the syntax is very verbose. For example you can do: SELECT * FROM dblink ( 'dbname=name port=1234 host=host user=user password=password', 'select * from table' ) AS users([insert each column name and its type here]); Is there any way to do this faster? Maybe pre-define the connections? I noticed that Postgres has a new create foreign table function for connecting to a MySQL database. It has a simpler syntax than dblink . Could I use that? In PostgreSQL 8.4 and later, you can use the foreign data wrapper functionality to

In my current setup I connect to an Azure SQL Server using Authentication=Active Directory - Integrated. This method of access only allows access to a single database at a time. The architecture was migrated from an on premises SQL server environment with changes to make cloud development feasible, but still analytics and debugging must occur across databases. Typically one would simply do a cross database join with a legacy SQL Server configuration, possibly involving link servers if the databases were on separate servers. In the cloud or azure you are supposed to use Elastic search or avoid

I need to copy data from one table to another. the two tables have almost the same structure, but are in different databases. i tried INSERT INTO db1.public.table2( id, name, adress, lat, lng ) SELECT id, name, adress, lat lng FROM db2.public.table2; wenn i try this, i get error cross database ... not implemented This is a really straightforward task. Just use dblink for this purpose: INSERT INTO t(a, b, c) SELECT a, b, c FROM dblink('host=xxx user=xxx password=xxx dbname=xxx', 'SELECT a, b, c FROM t') AS x(a integer, b integer, c integer) If you need to fetch data from external database on a

I was wondering if EF4 support cross-databse relationships? For instance: db1 Author Id Name db2 Posts Id Content db1.Author.Id What ideally I need to do to get this relation in my ef4 model? Do you guys have any idea? Thanks rortega I've found this entry in Microsoft Connect that answers the question about the support given at this moment by EF (actually it is not supported yet). Also found a thread in Social MSDN about this concern. Other links on Stack Overflow: ADO.Net Entity Framework across multiple databases Entity framework 4 and multiple database In summary, the only given

Is there any way to implement cross database querying in Entity Framework? Let's imagine I've two Entities User and Post, User entity is in database1 and Post is in database2, which means those entities are in separate databases. How should I get user's posts in Entity Framework ? EF context does not support cross database queries. You need to expose posts in database1 through SQL View ( or synonym ) and use it as part of that database. I know this is an old thread, but, actually. this is possible. If the databases are on the same server, then all you need to do is use a DbCommandInterceptor .