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It is pretty easy to gather status information from all sorts of things, ranging from the temperature in your office to the number of octets which have passed through the FDDI interface of your router. But it is not so trivial to store this data in a efficient and systematic manner. This is where RRDtool kicks in. It lets you log and analyze the data you gather from all kinds of data-sources. The data analysis part of RRDtool is based on the ability to quickly generate graphical representations of the data values collected over a definable time period.

A toolkit for building modeling frameworks like Active Record and Active Resource. Rich support for attributes, callbacks, validations, observers, serialization, internationalization, and testing.

A toolkit for building modeling frameworks like Active Record and Active Resource. Rich support for attributes, callbacks, validations, observers, serialization, internationalization, and testing.

Action Record In Rails, the model is handled by what's called a object-relational mapping layer entitled Active Record. This layer allows you to present the data from database rows as objects and embellish these data objects with business logic methods.

Action Record In Rails, the model is handled by what's called a object-relational mapping layer entitled Active Record. This layer allows you to present the data from database rows as objects and embellish these data objects with business logic methods.

BigRecord is built from ActiveRecord, and intended to seamlessly integrate into your Ruby on Rails applications.

SQLite is an SQL database engine in a C library. Programs that link the SQLite library can have SQL database access without running a separate RDBMS process. The distribution comes with a standalone command-line access program (sqlite) that can be used to administer an SQLite database and which serves as an example of how to use the SQLite library.

Mission: Development of an open-source solution for asynchronous, master-master replication of relational databases that is - ridiculously easy to use - database independent Currently supports PostgreSQL and MySQL.

SFCGAL is a C++ wrapper library around CGAL with the aim of supporting ISO 19107:2013 and OGC Simple Features Access 1.2 for 3D operations. SFCGAL provides standard compliant geometry types and operations, that can be accessed from its C or C++ APIs. PostGIS uses the C API, to expose some SFCGAL's functions in spatial databases

Xapian is an Open Source Probabilistic Information Retrieval library, released under the GPL. It's written in C++, with bindings to allow use from other languages. Xapian is designed to be a highly adaptable toolkit to allow developers to easily add advanced indexing and search facilities to their own applications. Xapian features include: - Ranked probabilistic search - word importance weighting - Relevance feedback - Phrase and proximity searching - Full range of structured boolean search operators - Term stemming - Database files > 2GB - Platform independent data formats - Allows simultaneous update and searching.