, t0.flgmod, t0.flgsup, t0.codmtr, t0.datmtr, t0.datsys SELECT t0.serwsa, t0.codwsa, t0.typart, t0.sermsuart, t0.flgcre Our dev team uses (symphony/doctrine) and therefore SQL generated with column aliasing and so is there a parameter in the informix ODBC driver that would allow to optimize this because the postgresql driver is not sensitive to this. We have done some tests to understand better and we find that using select with aliases (select col as col_alias) has a very big impact on performance (125%) if we do a select without aliases.
Thanks for the answers, the FETCH_BUFFER_SIZE is already activated. Don't worry, you will get the dialog answers back in realtime, similar to 4GL, if the config is correct :-) Check the front-end configuration and if the server gets the same SQL with the same session parameters and maybe if you have a difference in cursor handling. The PHP Informix Back-End working fine, normally. Does anyone have experience to share with us regarding this dilemma because it would mean that informix in 2021 is no longer a basis for developing applications with new programming languages. We have the feeling that the bottelneck is not the engine but rather the client part which is PDO->ODBC->IFX CLIENT->SERVER. Our problem is that the performances in comparison with PostgreSQL or Mysql are 2 times less good. We would like to use PHP/Symphony with PDO for 100% WEB applications. We have been using Informix for 25 years with 100% satisfaction on its robustness and performance with applications developed in Informix 4gl, delphi and 4js genero.
#Informix odbc driver date coparison formate password
Incorrect password or user is not known on the database server.I am facing a very annoying dilemma. Use isql -v to get a more detailed messageĭata source name not found, and no default driver specifiedĭatabase not found or no system permission. Troubleshooting Some typical errormessages isql errormessage usr/local/bin/isql (if your compiled unixODBC from source) or /usr/bin/isql (unixODBC installed as package) $ echo "SELECT FIRST 1 DBINFO('dbname') FROM systables" | /usr/local/bin/isql informixtestdsn username password The configured dsn can be tested with isql: driver: unixODBC will use the specified driverĭriver=/opt/IBM/informix/lib/cli/iclit09b.soįor testing you need to set these environment varibles: export INFORMIXDIR=/opt/IBM/informixĮxport LD_LIBRARY_PATH=$INFORMIXDIR/lib/esql If you have compiled unixODBC from source as described in the previous article, you will use /usr/local/etc/odbc.ini.įor each connection a datasource name dsn is configured in odbc.ini informixtestdsn is the datasource name (not case sensitive) The file odbc.ini in usually located /usr/local/etc/odbc.ini, /etc/odbc.ini, /etc/unixODBC/odbc.ini. Next step is to integrate the Informix ODBC Driver into unixODBC. As an alternative, you can specify the ip address here.
The network name of the server where your Informix database is running. You get this name from your Informix admin Is the informix DBSERVERNAME (not the name of the linux server where the database is running). Ol_informix1210 onsoctcp myinformixserver.local 9889 The file /opt/IBM/informix/etc/sqlhosts contains a list of informix databases, more info you get from your Informix database admin and find in the file /opt/IBM/informix/etc/sqlhosts.std # file /opt/IBM/informix/etc/sqlhosts In this example as installation directory is set to the default value /opt/IBM/informix Installation in gui mode Screenshots Global Language Support (GLS) West European and Americas.If you have an X11 client you may run the installer in gui (graphical) mode, otherwise you can use console mode. In the directory doc/ you find the documenation. I created a directory /opt/install/informix and copied the tar file to this directory cd /opt/install/informix UnixODBC should be installed first, see Unix ODBC Installation Extract tar file to installation directory I used a search engine for Informix Client SDK.ĭownload Informix Client SDK Developer Edition for Linux x86_64, 64-bit.Ī time of writing this is Version 4.10.FC8DE, filename is clientsdk.4.10. Informix Client SDK Installation Prerequisites The Informix ODBC Driver is part of the Informix Client SDK. To access a Informix Database via unixODBC you need a driver. 2.2 Extract tar file to installation directory.
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