Tdbengine is an RDBMS with an integrated programming language. It represents the enhancement of the famous DOS-TDB, and is designed to handle databases on the Web. It connects to the Web server using the standard CGI interface, or runs on the command line. It is very small (about 400 KBytes), extremely quick, and easy to administrate. Its features are full text indexing, an automatic data link system, and the script language EASY, which replaces the commonly used SQL with its modular code.
DB_eSession is a feature-packed PHP class that stores session data in a MySQL database rather than files. It is powerful, designed with security in mind, and is easy to utilize. The code contains lots of comments, and it comes with full documentation and examples of how to use the class including a basic authentication login/logout process. It includes member functions useful (to webmasters) for monitoring or viewing, deleting, and altering sessions validity for the case of locking one or more sessions upon detection of unauthorized use.
XML to DDL is a set of Python programs that converts an XML representation of a database into a set of SQL or DDL (Data Definition Language) commands. In addition, it can examine the difference between two XML files and output a sequence of SQL statements (normally ALTER statements) to bring one database up-to-date with the XML schema. You can also download the XML schema directly from the database. Finally, there's a tool to convert your schema into HTML for documentation purposes. XML to DDL currently supports the most recent versions of PostgreSQL, MySQL, Oracle, and Firebird databases.
Gtk2::Ex::DBI is a Perl module that is used in conjunction with Gtk2::Perl and Gtk2::GladeXML to give data-aware "form" functionality. The programmer creates a database form with Glade2, and then creates a Gtk2::Ex::DBI object, which then "binds" a DBI data source to the form, managing querying, navigating records, applying updates to the database, and error handling.
DatabaseToUML reverse engineers a database schema from an existing relational JDBC database. Tables and fields are reversed to classes and attributes, constraints are reversed to association, and tables composed only of foreign keys are converted to many-to-many associations. The main idea is to reuse the reversed model in a generator, taking UML2.x (EMF XMI 2.0/2.1) models as input.
SMDB is a small, portable database library that exports an API similar that of GDBM and allows for the simple storage and retrieval of key/data couples. The library is totally system independent due to the use of externally supplied interface pointers. File locking is left to the caller, allowing single instance users to not pay the the price (in terms of performance and portability) of the locking framework. It supports transactions, multiple tables inside the same DB file, and is less than half the size of GDBM.