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I am looking for a GUI to quickly check an HSQL (Hyper SQL) database.
The HSQLDB JAR itself actually contains such a manager:
java -cp ../lib/hsqldb.jar org.hsqldb.util.DatabaseManager
To open db.data:
java -cp ../lib/hsqldb.jar org.hsqldb.util.DatabaseManager --url jdbc:hsqldb:file:db.data
It is not the nicest GUI on Earth though:
LibreOffice Base is designed to do exactly what you're asking. You can make custom data entry forms, queries, and reports.
If you read this tutorial you'll know everything you need.
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