mysql-diff is a commandline database structure comparator. It compares the structure of two databases. It currently works with MySQL. A database can be specified as an SQL script or as an URL to a running database. So the tool can compare two scripts, two live databases, or a database and a script. The tool outputs SQL DDL script that can be used to convert one schema to another.
once:radix is an integrated development environment (IDE) that operates entirely within a Web browser. once:radix supports two methods of connecting to the server. Most interest is focused on its Rich Internet Application (RIA) environment. This comes with a suite of five RIAs that perform specific roles: logging on or off, context-sensitive help, database administration, IDE, and client. In addition, the once:secureserver (oSS) can respond to commands from session-managed external Web servers.
Awake SQL is a virtual JDBC Driver and a framework that enables remote JDBC access through HTTP. It allows Android and Java desktop app developers to use regular JDBC calls to access remote SQL databases in the cloud. It implements the main data types including blobs/clobs, and supports transactions. Security has been taken into account from the design stage: server-side configuration lets admins specify strong authentication and security rules in order to protect the databases.
StelsCSV is a JDBC driver that allows performing SQL statements and other JDBC operations upon text files (comma separated, tab-separated, fixed length, etc.). Using this driver, users can easily create a simple database consisting of plain text files. The driver can be used for writing data importing programs and migration tools. It supports most keywords of ANSI SQL92, table joins, INSERT, UPDATE, and DELETE statements, data types, aggregate, converting, string, and user-defined SQL functions.
StelsXML is a JDBC type 4 driver that allows you to perform SQL queries and other JDBC operations on XML files. It allows you to easily access data contained in XML documents using the standard SQL syntax and XPath expressions. The driver is completely platform-independent. It supports most keywords of ANSI SQL'92, XPath expressions for defining tables and columns, inner and outer table joins, aggregate, numeric, string, conversion, and user-defined SQL functions.