dteq is a query tool that passes results through a template. It is well-suited for auto-generating all kinds of things from a database like authentication tables, DNS zone files, or whatever you can come up with. It also does updating commands like INSERT and UPDATE and reports back the number of rows affected. This used to be named mysqlquery but it is now DB-independent, with cdb, MySQL, and PostgreSQL drivers available.
Net::Z3950::SimpleServer is a Perl module which implements the server side of the Z39.50 (information retrieval) protocol. It hides the complexity of network exchanges, packet serialization, and session handling. You are required only to implement simple callbacks to support searching and record retrieval. It is the basis of the "Zoogle" project, which is a Z39.50 gateway to the Google web index.
NoSQL is a fast, portable, relational database management system without arbitrary limits. It runs under, and interacts with, the UNIX operating system. It uses the Operator/Stream DBMS paradigm. There are a number of "operators" that each perform a unique function on the data. The "stream" is suplied by the UNIX input/output redirection mechanism. Therefore each operator processes some data and then passes it along to the next operator via the UNIX pipe function. This is very efficient as UNIX pipes are implemented in memory. NoSQL is compliant with the relational model.
ocicpplib is a C++ library to communicate with Oracle RDBMS through OCI. It features a JDBC-like interface to Oracle. The goal of the OCI C++ Library is to provide a simple interface to Oracle. It features support for Oracle 8 and 8i, BLOB/CLOB support, ROWID, REFCursor's and Nested Tables.
ODBC Socket Server is a database access toolkit that exposes Windows NT ODBC data sources via an XML-based TCP/IP interface. The base distribution includes a 32-bit multi-threaded Windows NT Service and clients written using COM (Windows C++), Perl, PHP, Python, and C++ (Linux). Most clients include source code and everything is very well documented in an easy to read PDF manual.
The Easysoft ODBC-ODBC Bridge allows applications on one machine to access ODBC data sources on another. It supports multiple concurrent connections from multiple clients to multiple target databases. The principle application is to enable access from Linux and Unix platforms to remote ODBC databases. For example, Apache/PHP programs on Linux can read/write data held on MS SQL Server on Windows, and Perl programs can read/write data held in a MS Access database. Supported applications include Applixware, Open Office, Python, Rexx/SQL, mnGoSearch, OpenLDAP, and Oracle sqlplus. Supported platforms include Linux, MacOSX, IBM zSeries, Windows and various Unix flavors.