Hi Ulrike, it seems the Connector/J .jar is not loaded.
What OS do you use? How did you trigger the restart of BaseXGUI after putting mysql-connector-java-5.1.36-bin.jar into the lib folder? Here is a workflow you can try (using the .zip BaseX distribution and the ./bin/basex startup files): $ wget http://files.basex.org/releases/latest/BaseX83-20150825.081504.zip $ unzip BaseX83-20150825.081504.zip $ ./basex/bin/basex -q 'sql:init("com.mysql.jdbc.Driver")' Stopped at ., 1/10: [bxerr:BXSQ0007] Could not initialize supplied driver: 'com.mysql.jdbc.Driver' Download Platform Independent (Architecture Independent), Compressed TAR Archive 'mysql-connector-java-5.1.36.tar.gz' from https://dev.mysql.com/downloads/connector/j/ $ tar xvjf ~/Downloads/mysql-connector-java-5.1.36.tar.gz . $ cp mysql-connector-java-5.1.36/mysql-connector-java-5.1.36-bin.jar basex/lib $ ./basex/bin/basex -q 'sql:init("com.mysql.jdbc.Driver")' $ All the best Alex > On 31.08.2015, at 09:27, Ulrike Schaper - SideStep Business Solutions GmbH > <u.scha...@sidestep-solutions.de> wrote: > > Hi everybody, > > I know, that this issue has been discussed already, but I still have problems > concerning BaseX and MySQL: > > Of course I read the documentation: I downloaded the Connector/J from the > MySQL website and put the .jar file (mysql-connector-java-5.1.36-bin.jar) > into the basex/lib folder. I closed and restarted the GUI and tried the > following: > > import module namespace sql="http://basex.org/modules/sql"; > sql:init("com.mysql.jdbc.Driver") > > I receive the following error message: > [bxerr:BXSQ0007] Could not initialize supplied driver: 'com.mysql.jdbc.Driver' > > Is there something obvious I’m missing? > > Best regards, > Ulrike.