Database Links [CORE776]

[firebird-automations]

Submitted by: alassiry (alassiry)

Block progress on CORE644

Votes: 31

SFID: 1175710#⁠
Submitted By: alassiry

It would be great if we could link databases together,
even with non-firebird databases.

for example:

create database link hr as
"fb://sysdba:pass2@anotherhost/opt/firebird/hr.fdb"

create database link system as
"ib://sysdba:masterkey@192.168.1.99/C:/Interbase/system.gdb"

create database link vbulletin as
"mysql://vb:vb@localhost/vbulletin"

create database link compiere as
"oci://compiere:comp@192.168.1.159/ORCL"

then you can:
select * from table1@hr h,table2@compiere c,
table3@vbulletin where h.field=c.field and
v.field2=c.field2

[firebird-automations]

Modified by: @dyemanov

assignee: Vlad Horsun [ hvlad ]

[firebird-automations]

Modified by: @dyemanov

Link: This issue block progress on CORE644 [ CORE644 ]

[firebird-automations]

Commented by: Umberto Masotti (umasotti)

It would be useful, as first step, to have heterogeneous queries in SQL, DSQL and PSQL between Fb databases through the same server.

I'm aware of the whole architecture must be designed before any single step in this direction, but AFAIR the whole discussion ended without drawing a clear conclusion.

[firebird-automations]

Modified by: @dyemanov

Fix Version: 3.0.0 [ 10048 ]

[firebird-automations]

Modified by: @pcisar

Workflow: jira [ 10800 ] => Firebird [ 15227 ]

[firebird-automations]

Modified by: @dyemanov

Fix Version: 3.0.0 [ 10048 ] =>

[dyemanov]

The standard solution is suggested to be considered instead. It's documented in the SQL:MED chapter of the SQL specification and includes foreign server/table declarations and ability to use foreign tables nearly everywhere in SQL/PSQL without explicit dblink references.