PM Report is a PHP/MySQL report generator. It creates customizable reports and is very simple to setup and use. You can select which database, table, and individual fields to use on your report. You can also select the order in which the fields should appear on the report, the field you would like to group by, the field you would like to sort by, and whether or not you would like a total for each column. Once the report has been generated, you can highlight individual rows and export the results to CSV.
LiteSQL is a C++ library that integrates C++ objects tightly to a relational database and thus provides an object persistence layer. LiteSQL supports SQLite3, PostgreSQL, and MySQL as backends. LiteSQL creates tables, indexes, and sequences to database and upgrades schema when needed. In addition to object persistence, LiteSQL provides object relations which can be used to model any kind of C++ data structures. Objects can be selected, filtered, and ordered using a template- and class-based API with type checking at compile time.
QOF (Query Object Framework), provides a set of C Language utilities for performing generic structured complex queries on a set of data held by a set of C/C++ objects. This framework is unique in that it does not require SQL or any database at all to perform the query. Thus, it allows programmers to add query support to their applications without having to hook into an SQL database.
radlib is a C language library developed to abstract details of interprocess communications and common Linux/Unix system facilities so that application developers can concentrate on application solutions. It encourages developers to use a proven paradigm of event-driven, asynchronous design. By abstracting interprocess messaging, events, timers, and any I/O device that can be represented as a file descriptor, radlib simplifies the implementation of multi-purpose processes, as well as multi-process applications. In short, radlib is a sincere attempt to provide real-time OS capability on a non-real-time OS.