Query language for the accidental programmer
Project description
HTSQL (“Hyper Text Structured Query Language”) is a high-level query language for relational databases. The target audience for HTSQL is the accidental programmer – one who is not a SQL expert, yet needs a usable, comprehensive query tool for data access and reporting.
HTSQL is also a web service which takes a request via HTTP, translates it into a SQL query, executes the query against a relational database, and returns the results in a format requested by the user agent (JSON, CSV, HTML, etc.).
Use of HTSQL with open source databases (PostgreSQL, MySQL, SQLite) is royalty free under BSD-style conditions. Usage of HTSQL with proprietary database systems (Oracle, Microsoft SQL) requires a commercial license. See LICENSE for details.
For installation instructions, see INSTALL. For list of new features in this release, see NEWS. HTSQL documentation is in the doc directory.
- http://htsql.org/
The HTSQL homepage
- http://htsql.org/tutorial.html
The HTSQL tutorial
- http://bitbucket.org/prometheus/htsql
HTSQL source code
- irc://irc.freenode.net#htsql
IRC chat in #htsql on freenode
- http://lists.htsql.org/mailman/listinfo/htsql-users
The mailing list for users of HTSQL
Generous support for HTSQL was provided by Prometheus Research, LLC and The Simons Foundation. This material is also based upon work supported by the National Science Foundation under Grant #0944460. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
HTSQL is copyright by Prometheus Research, LLC. HTSQL is written by Clark C. Evans <cce@clarkevans.com> and Kirill Simonov <xi@resolvent.net>.
List of Changes
2.0.0 beta 2 (2010-10-01)
Refactored the translator from the expression graph to the term tree.
Added Content-Disposition header to :json and :csv renderers.
Merged the tutorial to the repository.
2.0.0 beta 1 (2010-09-31)
Initial beta release.
PostgreSQL and SQLite backends are (mostly) supported, the former more than the latter.
The SQL translator needs more work, in particular, the term tree, the frame structure and the serializer.
Lots of functions are either not implemented or missing a proper serializer, especially in the SQLite backend.
Other areas which need more work before the final release: rendering, introspection, regression tests and documentation.
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