Hsqldb Latest Jar Download
Thibaut Silverman
The license texts for the source and binaries, based on the BSD license. hsqldb_lic.txt is for sources developed entirely by the HSQL Development Group. hypersonic_lic.txt is for sources that contain code from the closed HypersonicSQL project.
Unfortunately, i don't believe so. we have the same issue in our project. i believe i checked the source at one point in time and concluded that hsqldb does not provide a way to influence this logging.
I stand corrected (as @fredt mentioned in his comment to the other answer), you can control this logging via the jdk log levels. setting the "hsqldb.db" log level to something like WARNING will suppress this output. you can do this using the logging.properties file or programmatically (after hsqldb loads) using something like Logger.getLogger("hsqldb.db").setLevel(Level.WARNING) (assuming you are using java util logging).
As noted in the comment below, hsqldb also resets the java logging configuration. If embedding it in another application, you may want to disable that functionality by setting the system property "hsqldb.reconfig_logging" to "false" (before hsqldb is loaded).
To limit HSQBDL's .lobs file size growth, I enabled LOB compression through the jdbc connection URL as mentioned in the documentation (using hsqldb.lob_compressed=true), but from what I've recently discovered this URL parameter has no effect whatsoever.
If I understand the HSQLDB JDBC URL parsing code correctly, org.hsqldb.persist.Logger#setVariables() should at some point check HsqlDatabaseProperties.hsqldb_lob_file_compressed to set propCompressLobs, like it does for LOB crypto & cryptLobs, but never does so.
Unfortunately this error also happens on empty databases because there are unused LOB entries of deleted LOBs, which I assume are kept there to recycle .lobs file space. It seems the org.hsqldb.persist.Logger#setLobFileCompressed() method which is responsible for allowing LOB compression mode changes only checks the number of entries in SYSTEM_LOBS.LOB_IDS, whether they are currently in use or not.
I want to use HSQLDB in a production environment for stroring some data in memory and for data export using files. Does anybody have experience with using hsqldb in production environments? Is hsqldb treating server resources gracefully and does it cleanup unused resources properly?
Once you have started the server, the desktop app can no longer connect to the database with the jdbc:hsqldb:file:/some/path/myDatabase URL. It needs to connect with the jdbc:hsqldb:hsql://localhost/xdb URL.
As far as I can tell, the tutorial above only tells me what to put into the Datasource URL. As for the JDBC driver class, I have no idea what to write into this field. I tried the fully-qualified name of the Java class, org.hsqldb.jdbc.JDBCDriver as given in the HSQLDB documentation. When that failed, I tried the physical path /var/lib/hsqldb/lib/hsqldb.jar (although that should have been unnecessary, because first I pointed to this path as described under 1 and then restarted LibreOffice). In both cases, "Test class" failed with the message "The JDBC driver could not be loaded". OpenOffice's documentation doesn't say anything sensible about the field, it was something like "enter the JDBC driver in this box".
On the main Libreoffice menu, choose Tools/Options/Libreoffice and look for Java or Advanced. Click the Class Path button, and then Add Archive. Navigate to the location where the hsqldb.jar file is (apparently, /var/lib/hsqldb/lib/hsqldb.jar, in your case)
Step 3 is what you have illustrated with your screenshot. Put the properly modified (for your database) long command "jdbc:hsqldb:file:/home/chenier/hsqldb/name;default_schema=true;shutdown=true;hsqldb.default_table_type=cached;get_column_name=false" in the datasource url, and put "org.hsqldb.jdbcDriver" (without the quotes in both cases) in the JDBC Driver class box. Test the class. The next part asks for a user name; use "SA" (without quotes), leave the password required unchecked, and test the connection.
As I said, if hsqldb is smart like mysql or sql server, it will narrow the search by the intCol and then only compare at most a few values by the uuid. We use this trick to search through million+ record tables by string, and it is essentially as fast as an integer lookup.
Before starting Squirrel SQL, find the hsqldb-x.x.x.jar file in the lib folder of your CUBA Studio installation and copy it to the lib folder of Squirrel SQL.
I am trying to execute a tibco bw process activity which inserts record into hsqldb table. while inserting tibco bw record it is throwing an error; here I am attaching the snapshot of error. Any clue? Error says -
BW-JDBC-100014 Job-58000 Error in [Process/Receive Message.process/JDBC Update]
"JDBC error reported: (SQLState = 42501) - java.sql.SQLSyntaxErrorException: user lacks privilege or object not found: HAWKEVENTS"
caused by: java.sql.SQLSyntaxErrorException: user lacks privilege or object not found: HAWKEVENTS
Caused by: org.hsqldb.HsqlException: user lacks privilege or object not found: HAWKEVENTS