The Log & Dbug Library is an open source PL/SQL library, useful to log/debug your programs in the development phase and trace their activity and performances in production. It is ideal to improve your efficiency and code quality.
OraLog is a logging framework for Oracle databases. It allows Oracle developers to log debug information from their PL/SQL code and to send them to various destinations by using log appenders.
Pluggable Storage Engine Obejct-Oriented framework for MySQL 5.1. Provides a set of C++ base classes from which one descends to create a new PSE. Includes the base classes, utility code, debug code, and an example PSE based on PSE-OO called BlackhOOle.
JdbcProxy is a JDBC 2.0 driver that can help debug or test applications. The driver can wrap another JDBC driver to debug the JDBC calls done by the application. The driver can also emulate another JDBC driver to test the application without a database.
Tired of raising a prototype and then hearing that its going to be productive? Tired of huge meetings only to discuss "where to put this button"? Try Nova! No GUI framework to quarrel with, no persistence layer to debug - JUST-WRITE-THAT-MODEL. Period.
ThebaDB is an open source Database Layer with MSSQL, MySQL, SQLite multi-usage API, cache support to memcached, file, session and with an extremely useful Debug system. Written in singleton- and connect-when-need model. Easy to use plugin system.
Perf::Stopwatch is a Perl Module that can be quickly added and removed from any existing code to debug/optimize portions of code. Example of use are: database calls, loop efficiency, total script time, and webpage timeouts.