AW: [firebird-support] Index
Thank you set :) Von: firebird-support@yahoogroups.com [mailto:firebird-support@yahoogroups.com] Gesendet: Dienstag, 3. März 2015 10:07 An: firebird-support@yahoogroups.com Betreff: RE: [firebird-support] Index Hello everybody, I'm looking in a table for an existing record bevore I insert it. Now I would set some indices. There are 4 fields I compare. It is better I create one index with all 4 fields or for every field one? Difficult question with several potential answers. Generally, one combined index is a bit faster. So, if this is the only query with any of these four fields in the WHERE or JOIN clause OR the fields have lousy selectivity by themselves OR this is the one query where performance is vital, then go for the combined index. However, there are a few benefits from using single field indexes. -It is easy to understand which fields are used for a particular PLAN (hence easier to optimize) -It is easy to see whether you should consider adding new indexes -Each index can be used in more scenarios (the first field of a multifield index can be used for all queries with this field, the following fields only if the first field is compared for equality by the query) Generally, I find it simpler to generally have single field indexes and only rarely use combined indexes myself. So, I'm sorry to say there's no general answer for your question and that you have to consider for yourself what is most important in your particular case. now I have insert an index for the first both fields, the ibexpert analysis shows me non indexed reads, why? I don't know, sorry... The stored procedure also looking for two other fields. SELECT 1 FROM rdb$database WHERE EXISTS(SELECT * FROM t_errordata WHERE kd_id = :t_timestamp and li_id = :i_li and ftyp = :i_ftyp and ((fnr = :i_fnr) and (fnr = :i_fnr + (:fanzds-1 INTO :idexists; kd_id and li_id now indexed (in one index) ftyp and fnr not. The analysis said there are 1 indexed read, bevore I inserted the index there are thousends non indexed. I assume kd_id or li_id are fairly selective. My guess is that without any index, Firebird had to scan through thousands of pages before it found one that matched your criteria, with the index, Firebird can go straight to the correct kd_id and li_id and then the first matches with respect to i_fnr. HTH, Set
AW: [firebird-support] Index
Thank you :) Von: firebird-support@yahoogroups.com [mailto:firebird-support@yahoogroups.com] Gesendet: Dienstag, 3. März 2015 09:35 An: firebird-support@yahoogroups.com Betreff: Re: [firebird-support] Index Hello Olaf, A combined index, with the field that has the largest number of different values as the first indexed field. With regards, Martijn Tonies Upscene Productions http://www.upscene.com http://www.upscene.com Download Database Workbench for Oracle, MS SQL Server, Sybase SQL Anywhere, MySQL, InterBase, NexusDB and Firebird! From: mailto:firebird-support@yahoogroups.com Sent: Tuesday, March 03, 2015 9:29 AM To: firebird-support@yahoogroups.com mailto:firebird-support@yahoogroups.com Subject: [firebird-support] Index Hello everybody, I’m looking in a table for an existing record bevore I insert it. Now I would set some indices. There are 4 fields I compare… It is better I create one index with all 4 fields or for every field one? Thank your Olaf
Re: [firebird-support] Re: error messages: client shows only templates
Am Dienstag, 3. März 2015, 20:26:50 schrieb i...@obmsoftware.com [firebird-support]: I have faced such error message as well, and what I found out is that I have multiple GDS32.DLL located in my computer. I think somehow during my uninstallation of previous version of FireBird, it didn't get removed. Thanks, that was it! In my case I forgot to copy the latest fbclient.dll over the single existing gds32.dll -- Wolfgang
Re: [firebird-support] Firebird SQL Classic-Server 2.5.3 in OSX 10.10.2
hi paul,
thank your for help.
bevore my question i have changed the /etc/service file to this:
gds_db 5143/udp# gds_db (buhl)
gds_db 5143/tcp# gds_db (buhl)
(without „/„ like the other entrys in this file)
since this, firebird has stpped/started many times (reloading,reboot)
but firebird seems to ignore the etc/service file on my system. (?)
any other suggestions for osx 10.10. ?
regards
rené
Am 03.03.2015 um 11:47 schrieb 'Paul Beach' pabe...@waitrose.com
[firebird-support] firebird-support@yahoogroups.com:
The following will work.
cd /etc
vi services
change
gds_db 3051/udp
gds_db 3051/tcp
for example.
cd /Library/LaunchDaemons
launchctl unload org.firebird.gds.plist
launchctl load org.firebird.gds.plist
isqlconnect 'localhost:/Users/whome/databases/test.fdb' user 'whoever'
password 'whatever';
in another terminal window:
lsof -i:3051
Regards
Paul
I am using firebird sql classic-server 2.5.3 under mac osx 10.10.2
How can i change the remote-service-port (standard is 3050) to another one?
i know, in windows and linux this setting is managed by an entry in
„firebird.conf
in osx there is also a „firebird.conf in
/Library/Frameworks/Firebird.framework/A/Resources/English-lproj/var/
but changes in this file:
RemoteServiceName = gds_db
RemoteServicePort = 5143
have no result in firebird. the port is the same as before (3050)
i have read the readme-file (firebird.conf.txt) in
/Library/Frameworks/Firebird.framework/A/Resources/doc
But i only found this in „Darwin“ section:
Darwin on the other hand first checks the environment variable FIREBIRD.
If not found, it [... John, please describe the „bundle stuff here].
As a last resort it too falls back to /usr/local/firebird“.“
It seems that this section is not complete written by the author.
I have searched in internet many times for help but i have not found a
answer for this „problem“.
(with the right knowledege not really a problem)
in osx i have found two other files they are maybe used for configuring
firebird.
„org.firebird.gdl.plist and StartupParameters.plist
but both file has other syntax so i cant adopt the settigs from
firebird.conf to this files.
these files are:
/Library/Frameworks/Firebird.framework/A/Resources/FirebirdSS/StartupParameters.plist
{
Description = Firebird SQL Database server;
Provides = (Firebird Server);
Requires = (DirectoryServices);
Uses = (Disks, NFS);
OrderPreference = None;
}
and:
/Library/LaunchDeamons/org.firebird.gdl.plist
?xml version=1.0 encoding=UTF-8?
!DOCTYPE plist PUBLIC -//Apple//DTD PLIST 1.0//EN
http://www.apple.com/DTDs/PropertyList-1.0.dtd;
plist version=1.0
dict
keyDisabled/key
false/
keyEnvironmentVariables/key
dict
keyPATH/key
string/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Applications/Server.app/Contents/ServerRoot/usr/bin:/Applications/Se
rver.app/Contents/ServerRoot/usr/sbin:/usr/local/sbin/string
/dict
keyInetdCompatibility/key
dict
keyWait/key
false/
/dict
keyInitGroups/key
true/
keyLabel/key
stringorg.firebird.gds/string
keyOnDemand/key
true/
keyProgramArguments/key
array
string/Library/Frameworks/Firebird.framework/Resources/bin/fb_inet_server/string
/array
keySockets/key
dict
keyListeners/key
dict
keySockFamily/key
stringIPv4/string
keySockServiceName/key
stringgds_db/string
keySockType/key
stringstream/string
/dict
/dict
keyUserName/key
stringfirebird/string
/dict
/plist
How can i configure the remote-service-port (standard is 3050) to another
one?
Thank You
Regards
René
[colombe] computer und medien
E-Mail: i...@colombe.biz
Tel.: 030 868 70 48 89
mobil: 0179 249 48 89
www.colombe.biz
Posted by: =?windows-1252?Q?Ren=E9_Colombe?= firebirdsql-l...@colombe.biz
++
Visit http://www.firebirdsql.org and click the Documentation item
on the main (top) menu. Try FAQ and other links from the left-side menu
there.
Also search the knowledgebases at
http://www.ibphoenix.com/resources/documents/
++
Yahoo Groups Links
Re: [firebird-support] Firebird SQL Classic-Server 2.5.3 in OSX 10.10.2
At 01:38 p.m. 4/03/2015, you wrote: bevore my question i have changed the /etc/service file to this: gds_db 5143/udp# gds_db (buhl) gds_db 5143/tcp# gds_db (buhl) (without / like the other entrys in this file) since this, firebird has stpped/started many times (reloading,reboot) but firebird seems to ignore the etc/service file on my system. (?) any other suggestions for osx 10.10. ? Editing the services file does not open ports in the firewall. Have you checked whether port 5143 is open in the firewall? Next, have you tried setting the port in firebird.conf: # TCP Protocol Settings # # The TCP Service name/Port number to be used for client database # connections. # # It is only necessary to change one of the entries, not both. The # order of precedence is the 'RemoteServiceName' (if an entry is # found in the 'services.' file) then the 'RemoteServicePort'. # # Type: string, integer # #RemoteServiceName = gds_db #RemoteServicePort = 3050 The commented settings are the Firebird defaults. You can try to override them by deleting the comment marker # on RemoteServicePort and setting the new port: #RemoteServiceName = gds_db RemoteServicePort = 5143 After saving the changes in firebird.conf, don't forget to 1) open the new port in the firewall and 2) shut down and restart any fb-inet_server processes. I'm not sure, but you might have to restart xinetd before step 2), as well. I don't have access to an OSX box to test that. Helen Borrie, Support Consultant, IBPhoenix (Pacific) Author of The Firebird Book and The Firebird Book Second Edition http://www.firebird-books.net __
[firebird-support] Re: error messages: client shows only templates
I have faced such error message as well, and what I found out is that I have multiple GDS32.DLL located in my computer. I think somehow during my uninstallation of previous version of FireBird, it didn't get removed. After I remove all outdated GDS32.DLL like those dated in year 2007, and remain the latest one, my system does not prompt such error already but prompting more meaningful messages.
