Hypersonic SQL

Hypersonic SQL is an Open Source relational database server with SQL syntax and JDBC interface. Source code is included. In-Memory, Standalone and Client/Server modes. Tables, indices, transactions, joins, referential integrity, security mechanism. Very small footprint. Up to 10 times faster than commercial databases.

Author's Notes:
In this demo, all data is kept in memory.
The data will be lost if the program is closed.
The QueryTool and the database are running
inside the internet browser.

If it does not work

# Verifier error org/hsql/jdbcConnection.getTypeMap()Ljava/util/Map

This means the class java.util.Map was not found. In JDK 1.1, this class does not exist. When compiled for 1.2, there is a reference this class required to conform the JDBC 2.0 interface. This class itself is never used, but the reference is required anyway. It looks like most verifiers have no problem with this, but some have.

The (only) solution for this problem is to recompile (at least the client part) for JDK 1.1. You will need to install JDK 1.1 before you can do this, then see:

Build / How to switch to JDK 1.1

How To Use:

<APPLET CODE=QueryTool ARCHIVE=hsql.jar WIDTH=460 HEIGHT=400>
<PARAM NAME="database" VALUE=".">
</APPLET>