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
On some browsers (Netscape 4.6+), the version compiled for
JDK 1.2 does not work. In the Java Console (Communicator
/ Extras / Java Console) you will get something like:
# 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:
Download hsql_142.zip (653 KB)
Unzip with a
compression utility.
Java Source:
Included in zip file.
Sample HTML Source:
<APPLET CODE=QueryTool ARCHIVE=hsql.jar WIDTH=460 HEIGHT=400>
<PARAM NAME="database" VALUE=".">
</APPLET>
Status: Free
Author: Thomas Meuller
Homepage: http://hsql.oron.ch/
Upload Date: July 1998
Updated: June 22, 2000
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