[[Database::+]]

Coldstore: ColdStore is a gigabyte-scale persistent object store which maps objects into a file (for persistence), can allocate objects in a minimal working-set of pages (for speed), permits library versions to change without a rebuild of the store, and permits application checkpoint/restart. Coldstore might be used to replace a database, cache highly structured objects, act as an OODB, make STL persistent, act as a Document Store for XML/SGML/HTML, create a MUD. Future projects include a virtual machine toolkit, ports of several languages, VW and byte-interpretive language workbench.

Comanche Server: Comanche is an extremely simple HTTP (web) server written entirely in Python. It does not use any of the many Python standard library modules related to HTTP serving, as it was initially written as a learning exercise. At present it does not support CGI or SSL and uses a simple fork-on-demand architecture, but is being actively improved.

Common Lisp SQL: 'CLSQL' is an SQL database interface for Common Lisp. It provides object-oriented and functional access methods to the underlying database, which can be one of MySQL, ODBC, PostgreSQL, or SQLite. It uses the Unified Foreign Function Interface (UFFI) and thus supports the CMU Common Lisp, Steel Bank Common Lisp, Allegro Common Lisp, OpenMCL, and Lispworks implementations.

CrocoPat: 'CrocoPat' is a tool for querying and manipulating relations. It is easy to use because of its simple query and manipulation language based on predicate calculus and its simple file format for relations. It is efficient because it internally represents relations as binary decision diagrams, a data structure that is well-known as a compact representation of large relations. CrocoPat is general, because it manipulates not only graphs (i.e. binary relations), but n-ary relations.

Csv2mysql: 'csv2mysql' is a Web-based tool that converts CSV files to MySQL tables. It asks for the location of the CSV file, type of the CSV file, and access info (server address, table name, username, and password) for the MySQL database, and lets users map the fields of a CSV file to the fields of a MySQL table.

CsvCat: Read multiple comma separated value files, such as exported from a spreadsheet or a database, and combine the output into a single file. Options are available to limit the columns included and to semi-intelligently skip headers.

CsvUtils: Transformation utilities for csv (or csv-like) generated rows. The standard csv module is very useful for parsing tabular data in CSV format. Typically though, one or more transformations need to be applied to the generated rows before being ready to be used; for instance "convert the 3rd column to int, the 5th to float and ignore all the rest". This module provides an easy way to specify such transformations upfront instead of coding them every time by hand. Two classes are currently available, SequenceTransformer and MappingTransformer, that represent each row as a list (like csv.reader) or dict (like csv.DictReader), respectively.

Ctrlproxy: 'ctrlproxy' is an IRC server with multiserver support. It runs as a daemon and connects to a number of IRC servers, then lets you to connect from a workstation and work as the user who is logged in to the IRC server. After you disconnect, it maintains the connection to the server. It acts like any normal IRC server, so you can use any IRC client to connect to it. It supports multiple client connections to one IRC server (under the same nick), so you can connect to IRC using your IRC nick, even if you have an IRC session open somewhere else. It supports logging (in the same format as the irssi IRC client), password authentication, and ctcp (in case no clients are connected).

DBA Companion: DBACompanion is a graphical administration tool for Oracle databases that lets you visualise the contents of a data dictionary. It lets you browse the data dictionary, drill down from one piece of information to related ones, generate SQL scripts based on data dictionary information, and customize all the SQL used by the tool.

DBI Frame: DBI::Frame is an extension of the standard DBI perl module, designed around MySQL, used to create and maintain frameworks for databases. It has query logging and a standardized interface for SQL statements like 'update' and 'insert' that doesn't require understanding SQL. Ideally, the user or developer shouldn't have to know SQL to be able to administer a database; this does require a special setup which isn't necessarily easy to create.

DBIx Simple: DBIx::Simple provides a simplified interface to DBI, Perl's powerful database module. It is aimed at rapid development and easy maintenance, but not at SQL abstraction

DBLIB: DBLIB is a PHP library to create WWW interfaces to databases. Its main aim is to support creating interfaces for site administrators, but it can be used as well to create public end-user interfaces. It features over 15 widget types (text, numbers, datetime, password, reference to another table, etc.), automatic data conversion and escaping, automatic input checking in all fields, an abstract data layer that supports several SQL databases, LDAP, and text/dbm files. DBLIB is not a low-level database manager like PHPMyAdmin.

DEWAWI: DEWAWI is a web based and simple to use merchandise management system including customer relationship management. The software is designed to increase the productivity and effectiveness of the business processes at small and middle size businesses. Thanks to the web based software DEWAWI can be installed on any GNU/Linux, Apache server to make the system accessible worldwide. The user interface is designed with mobile first strategy to make it available for any type of devices accessible. The architecture of the DEWAWI is based on modules and it is easily expandable to new functions.

DM Tools: DMTools is an ongoing project to develop a data mining toolbox written in Python. Two core features of the toolbox are caching of database queries and parallelism within a collection of independent queries. Our toolbox provides a number of routines for basic data mining tasks on top of which the user can add more functions - mainly domain and data collection dependent - for complex and time consuming data mining tasks.

DNRD: DNRD is a proxy DNS Daemon. It is useful for a home network where you have multiple ISPs or VPNs. DNRD can be set up to forward all DNS queries to the appropriate DNS server for each of your ISPs.

DataStatix: DataStatix is a free software for GNU/Linux and Windows useful to manage data of every kind (although it has been written to manage biomedical data), to create descriptive statistics and graphs and to export items easily to R environment or to other statistic softwares. In order to handle properly big amount of data and many concurrent users, DataStatix works with MySql database and it has been developed and tested with MySql community edition 5.5. Some features of the software are: users management (create, delete, modify password) within the software; different users levels of data access (administrator, default, read only); user defined templates (models) of data, to create new databases easily; importation and esportation of data in CSV format (used also by Calc and Excel); updating of existing data from a CSV file created with DataStatix; descriptive statistics from every data (some more kind of statistics to come); graphs from every data.

DaveDAP: * " 'DaveDAP' is now 'phpldapadmin'. " DaveDAP is a PHP-based engine to browse, search, and edit an LDAP server over the Web. You can browse your LDAP server in tree mode, or you can search for users based on any number of easily configurable criteria. Users can create and delete objects, edit their contents, and perform searches. DaveDAP aims to be a Web-based replacement for GQ.

Dia2sql-stl: 'dia2sql-stl' is yet another dia2sql converter. It uses libxml2 and the STL to quickly parse UML objects from a Dia diagram and then generates corresponding SQL code to create the tables specified in the UML diagram. It takes a filename and outputs to stdout.

Diaspora: Diaspora is a decentralized social network (composed by many servers which interact with each other, the servers are called pods).

Dico ,: Dico is a flexible modular implementation of DICT server (RFC 2229). In contrast to another existing servers, it does not depend on particular database format, instead it handles database accesses using loadable modules. The package includes several loadable modules for interfacing with various database formats, among them a module for dict.org databases and a module for transparently accessing WordNet. New modules may be written in Guile or Python. A console client program, dico, is also included.

Django: Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design.

DnDD: I named this program DNDD. Abbreviation for discussion & democratic decision making. DNDD is a Mysql client program. DNDD is also a bulletin board program focused on decision making procedure. You can use DNDD as a normal bulletin board or as a platform for some group of people to discuss some serious matters and decide what to do. Because DNDD have innate ability to vote and calculate votes, you can use it for class chief election or board meeting.

Docassemble: docassemble is a system for guided interviews and document assembly. It provides a web application that conducts interviews with users. After each interview, docassemble generates documents in various formats based on user input and preconfigured templates. Though the name emphasizes the document assembly feature, docassemble interviews do not need to assemble a document; they might submit an application, direct the user to other resources on the internet, store user input, interact with APIs, or simply provide the user with information. docassemble was created by a lawyer/computer programmer for purposes of automating the practice of law, but it is a general-purpose platform that can find applications in a variety of fields.

Dolphin proxy: Dolphin is a lightweight HTTP proxy server. It is multi-threaded, easy to configure, and easy to use. This package is not maintained anymore. Its entry is kept here for historical purposes only. See also: dolphin-emu

Dovecot: 'Dovecot' is an IMAP server whose major goals are security and extreme reliability. It uses index files to optimally store the mailbox state, which makes it very fast even with huge mailboxes. Indexes won't prevent external mailbox updates, so Dovecot is still fully compatible with standard Maildir and mbox formats. There's also a fully featured POP3 server included.

Druid: Druid lets users create databases graphically. Users can add/modify/delete database objects (fields, tables, etc.) using a simple GUI and can document each table and field with HTML information. Druid then generates an SQL script with all table definitions that can be piped to the DBMS; a data dictionary file containing all the tables and field in the database, and Java classes that contain both the tables' constants and users' code. The program works with Java, C, and C++. There is a plug-in architecture, so users can write their own modules. The latest features let you examine the entire jdbc DB structure, rebuild the jdbc DB on the fly using the druid's current database, import the jdbc DB structure into druid for reverse engineering, and add/modify/delete tables' records using a simple grid control.

Duro

The goal of the Duro project is to create a library which is as compliant with the proposed database language D as it is possible for a C library. This library is supposed to serve as a basis for a truly relational database management system (TRDBMS).

Tuples and tables (relvars).
Relational algebra: RENAME, select (restrict), project, EXTEND, JOIN, SEMIJOIN, UNION, INTERSECT, MINUS, SEMIMINUS, SUMMARIZE PER, DIVIDEBY PER, WRAP, UNWRAP, GROUP, and UNGROUP.
Virtual tables (views).
Locking and nested transactions.
Duro tables are true sets -- uniqueness of tuples (rows) is always enforced. When creating real tables, at least one candidate key must be supplied. A candidate key may be empty.
User-defined types (including type constraints) and operators.
Declarative integrity.
Tcl interface, including support for relational expressions in Tutorial D syntax and operators implemented in Tcl ("stored procedures").
Simple GUI admin tool.

xs Duro is implemented on top of the Berkeley DB database library.

DynORM: DynORM is an open source project which develop a new ORM (object-relational mapping) that can work with relational data (tables and its records) which structure (set of fields, its type, set of constraints etc) can be changed in run-time. “Dyn” for that reasons stands for “dynamic”). DynORM is written on C# and available with its source code (and the demo program that comes with it too). DynORM is a very young and small ORM system, but it has the following advantages: it allows change structure of tables it work with at run-time easily; it allows work with databases without any configuration files; it can work with different RDBMS engines (since it's very young project at the moment it can work with MSSQL and PostgreSQL. Support of other RDBMS will be added in few nearest relases); although it doesn't need any configuration file which describes structure of tables it works with, it's possible to retrieve structure of data and data itself and serialize/deserialize it to/from xml; just because DynORM can serialize/deserialize structure of tables and its records and because DynORM supports several RDBMS it can be used to easily deploy datastructure among servers with different database engines. Serialized structure of tables described in CLR datatypes. Mapping to appropriate datatypes used in every particular RDBMS done by DynORM.

ENodes: ENodes is a reliable web development and publishing framework written in Perl and geared on mod_perl.
Operating like a complete layer on Apache, it allows to manage multiple domains dispatched between multiple webmasters. It includes versioning, access lock, parallel version test, fine granularity of permissions and version management, user workflow, import/export mechanisms and a fully integrate plugin interface.
It is nearly stable and already used by many websites.

Elog: ELOG (Electronic Web Lobgook) is an electronic logbook with a Web interface. It can be used to maintain personal or shared logbooks, with the ability to add attachments to logbook pages. Logbook entries can be categorized with user-defined classes, and queried using filters on these classes. Automatic email notifications can be sent on new entries based on these classes. The ELOG server is a small stand-alone C program, which runs under GNU/Linux. The logbooks are saved in plain ASCII files for easy and fast access.

Emdros: Emdros is a text database engine for annotated or analyzed text. Linguistic analyses are the primary target domain, but other fields that deal with analyzed or annotated text may also benefit from Emdros. The package includes a powerful query language for query/create/update/delete operations. The query-operations are particularly powerful, using embedding and consecutiveness of query-language constructs as ways of mapping queries to database matches that have the same structure.

Encuestame: Encuestame has been developed by @jotadeveloper and @dianmora since mid-2008 and was created to fill empty space in the survey online world, there are only a few options ready to use and others only under expensive rates, is the time for an open source option. Along the last years we have been adding new features, being able to connect Encuestame with the most famous Social Networks, trying to give you a project easy to be installed, to be usable and to be easy manageable. In mid-2011 we release the first version of Encuestame, since then we managed to make usable Encuestame in the new mobile world. Also we've enjoyed the support of companies like Atlassian and Jetbrains that have offered pen source licenses to our team. The history doesn't finish here, it will have more features coming soon.

Erw: ERW (Entities and Relationships on the Web) is an innovative system for handling complex databases using a Web browser. It uses the most recent standards endorsed by the W3C to offer to the user a sophisticated environment, similar to a dedicated client. Moreover, the user interface is generated in a completely automatic way starting from a conceptual description of the database by means of an XML-based description language for entity-relationship schemata. From the same description, you can also automatically obtain diagrams and documentation. ERW can be used for content management, in particular when the data is structured along complex relations.

FbNotex: fbNotex is a free software for macOS useful to manage many textual notes in Markdown format, files and tasks using the Firebird database.

Ferret: Ferret is the GNU data modeller. It lets you create data models and implement them in a relational database. You can draw your data model via an entity-relation diagram, generate the tables from it (another graphical diagram), and then generate the SQL that creates such relational tables. Several SQL dialects are supported (for most popular free software database systems) and it is very easy to patch the sources to support more. This package was formerly known as 'GerWin.'

FerretDB: Modified from README.md: FerretDB was founded to become the de-facto free software substitute to MongoDB. FerretDB is an free software proxy, converting the MongoDB 6.0+ wire protocol queries to SQL - using PostgreSQL or SQLite as a database engine. FerretDB is compatible with MongoDB drivers and popular MongoDB tools. It functions as a drop-in replacement for MongoDB 6.0+ in many cases. Features are constantly being added to further increase compatibility and performance.

Ffproxy: ffproxy is a filtering HTTP proxy server that can filter by host, URL, and/or header. Custom header entries can be filtered and added. It can even drop its privileges and optionally chroot() to a directory. It supports logging to syslog() and using another auxiliary proxy server.

FlameRobin: FlameRobin is a tool used to do common database administration tasks against Firebird databases: running SQL queries, browsing and changing the database structure (tables, views, triggers, procedures, indexes, constraints, sequences, etc.), adding new and modifying existing data, doing backup and restore, managing database users, etc.

FlashPash: This is a candidate for deletion: Links broken. No links to page. Email to maintainer broken. Poppy-one (talk) 14:39, 30 July 2018 (EDT) 'flashPash' is a client/server database tool that lets applications to easily retrieve and update information over the internet or an intranet. Thanks to the PHP ADOdb abstraction library, 12+ databases are supported. Whilst it can be used only on a server, it's primary use is with Flash Shockwave clients, using XML to transport data between client and server.

FlatFileSQLDatabase: This is a candidate for deletion: Sourceforge last updated 2013. Email to maintainer broken. Poppy-one (talk) 15:01, 30 July 2018 (EDT) FlatFileSqlDatabase is an implementation in PHP of a small database using SQL to access and using text files to store the data.

Fnord httpd: 'fnord' httpd is a small HTTP server (15k static binary). It is fast, and supports sendfile and connection keep-alive, virtual domains, content-ranges, and IPv6. It does transparent content negotiation for special cases (html - html.gz, or gif - png), and has directory index generation.

Foodsoft: Foodsoft is online software for a non-profit food coop. It features a product catalog, order cycle management, accounting, and tasks. A food cooperative is a group of people buying food from suppliers of their own choosing; a collective do-it-yourself supermarket. Members order their products online and collect them on a specified day, and all put in a bit of work to make that possible. Foodsoft facilitates the ordering and administration.

FormEntry: 'FormEntry' generates an HTML which shows some (or all) database columns as TEXT input areas, drop downs, radio boxes etc. The user sees/modifies only those parts of the database you want. 'FormEntry' generate the form directly from the tables. It controls the behavior and access of each column of data - not showing some, allowing only read-only viewing for others, and allowing full modification for others. It also provides the CGI scripts to deal with the action of the , so you don't need to write them.

Ftpcluster: 'ftpcluster' integrates a number of individual FTP servers into a single large server. You can think of it as a network disk array with FTP as the access protocol.

GAdmin-ProFTPD: GAdmin-ProFTPD is a GTK+ frontend for the ProFTPD standalone server. It gives admins access to virtual hosting and eight layers of security, including chrooted users and encrypted transfers on both the data and/or control channels.

GNUData: GNUData is a system of storage of information developed with tools of free software. That can be used as Regional Databases with publication of the same informations in dynamic consultations.

GT.M: GT.M is a schema-less database engine with scalability proven in the largest real-time core processing systems in production at financial institutions worldwide, as well as in large, well known health care institutions, but with a small footprint that scales down to use in small clinics, virtual machines and software appliances. The GT.M data model is a hierarchical associative memory (i.e., multi-dimensional array) that imposes no restrictions on the data types of the indexes and the content - any schema, dictionary or data organization is entirely that implemented by the application logic. GT.M's compiler for the standard M (also known as MUMPS) scripting language implements full support for ACID (Atomic, Consistent, Isolated, Durable) transactions, using optimistic concurrency control and software transactional memory (STM) that blurs the distinction between databases and programming languages. Its unique ability to create and deploy logical multi-site configurations of applications provides unrivaled continuity of business in the face of not just unplanned events, but also planned events, including planned events that include changes to application logic and schema.

GUJ Chat: GujChat is a chat server management system which can manage different chat servers, each one serving different rooms. A single GujChat installation is capable of serving diverse Webmasters with different templates, rooms and configurations. It is particularly useful for webmasters who are looking for a chat room or a chat server and service providers who offer chat servers to their clients. GujChat is completely multi-lingual and can be installed under any Servlet API 2.2 (or newer) compliant servlet container.

Gdbm: GDBM is a library for manipulating hashed databases. It is used to store key/value pairs in a file in a manner similar to the Unix dbm library and provides interfaces to the traditional file format. This is a GNU package.

Gedafe: Gedafe (Generic Database Front-End) is an application independent end-user web front-end for databases. This means that the front-end has no information about the structure and contents of the database. All application logic along with meta-information on how to present the data, is put into the database. The front-end gathers this information and uses it to build the user interface. This greatly reduces development time since you only have to develop the application at the database level; the web front-end comes for free.

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