[firebird-support] Need Help

2015-08-20 Thread 'Paul Beach' pabe...@waitrose.com [firebird-support]
If by QBICSYSTEMS you mean QBIC III Systems Inc. then the database will be Firebird. Regards Paul

Re: [firebird-support] Join to same table twice - or joins vs subqueries

2015-08-20 Thread dmil...@amfes.com [firebird-support]
Hi Set! Thank you very much - you've answered most of my question - but created another: I've assumed route_index is part of the routes table, and that a.id, b.id and c.quality are unique in each table. Your assumptions are correct. My apologies for not being clearer. select r.id,

[firebird-support] Regarding ODBC

2015-08-20 Thread 'Raman, Anitha' anitha.ra...@am.jll.com [firebird-support]
Hello group - I have installed Firebird and trying to import structures using an ETL Application called Informatica PowerCenter. ODBC connection seems to be valid as I am able to connect using EXCEL and select from the tables. But when I try using my application to import structures I get the

[firebird-support] Join to same table twice - or joins vs subqueries

2015-08-20 Thread dmil...@amfes.com [firebird-support]
I'm trying to figure out what I did wrong. It seemed to work fine...but now I'm seeing discrepancies. Edit: I figured it out - I didn't have all the values in my table route_qualities. After tearing apart my query and doing numerous tests - I finally actually looked at the data and saw what

Re: [firebird-support] Is it safe to have multiple instances of Gbak with garbage collection?

2015-08-20 Thread Ann Harrison aharri...@ibphoenix.com [firebird-support]
On Aug 19, 2015, at 5:49 PM, tvd...@ymail.com [firebird-support] firebird-support@yahoogroups.com wrote: I believe it is generally safe to have multiple simultaneously running instances of Gbak backing up the same server, when all of them read data from within their own transaction.

[firebird-support] FB does table scan as soon as I use left outer join in view - why?

2015-08-20 Thread 'Louis van Alphen' lo...@nucleo.co.za [firebird-support]
Ok so I have a ‘master table called SKIN_ loosely defined as follows: Table SKIN_ ID bigint not null (primary key) COLOUR_ID bigint (optional lookup field to COLOUR_ table) For the purposes of convenience, I have created a view SKIN on SKIN_ to

Re: [firebird-support] Regarding ODBC

2015-08-20 Thread 'Mark Rotteveel' m...@lawinegevaar.nl [firebird-support]
The mailinglist doesn't support attachments, please post the error message as text. Mark - Reply message - Van: 'Raman, Anitha' anitha.ra...@am.jll.com [firebird-support] firebird-support@yahoogroups.com Aan: firebird-support@yahoogroups.com Onderwerp: [firebird-support] Regarding ODBC

[firebird-support] Re: FB does table scan as soon as I use left outer join in view - why?

2015-08-20 Thread Dmitry Yemanov dim...@users.sourceforge.net [firebird-support]
20.08.2015 16:53, 'Louis van Alphen' wrote: The same thing happens in many other queries where I use views and IMHO I find it non-sensical. I have come to the conclusion that FB does not choose great query plans when using views. True, when views contain outer joins. It is really hard to

[firebird-support] Differences when adding a Primary Key

2015-08-20 Thread 'Walter R. Ojeda Valiente' sistemas2000profesio...@gmail.com [firebird-support]
Hello everybody For add a Primary Key to a table we can write: ALTER TABLE MyTable ADD PRIMARY KEY (ID); or we can write: ALTER TABLE MyTable ADD CONSTRAINT MyPK PRIMARY KEY (ID); In the first case, the Firebird puts the name of the Primary Key, in the second case we choose that name, but...

Re: [firebird-support] Join to same table twice - or joins vs subqueries

2015-08-20 Thread setysvar setys...@gmail.com [firebird-support]
Hi Daniel! select r.id, a.node node, route_index, b.node link_node, c.quality_label from routes r join nodes a on r.node_id = a.id join nodes b on r.link_id = b.id join route_qualities c on r.quality = c.QUALITY order by node, route_index; Is there an alternate way of writing

Re: [firebird-support] Is it safe to have multiple instances of Gbak with garbage collection?

2015-08-20 Thread tvd...@ymail.com [firebird-support]
Thanks Ann, Doing multiple simultaneous backups is never intentional. There will be a process that does hourly backups in the background, and someone (unaware of that) might decide to do a manual backup to another location at the same time. I was considering disabling garbage collection in the