pwolfgang / querybuilder

A package to build SQL queries to be used by the PAPolicy website

Package to create SQL queries

This package contains classes used by the Pennsylvania Policy Database project analysis tool (PAPolicy) to create the SQL queries. PA Policy Database contains several tables and the tool allows users to select from those tables based upon filters, year ranges, and keyword search of text.

The basic form of the generated query is: SELECT ‹columns› from ‹table› WHERE ‹filter criteria› AND ‹year range› GROUP BY ‹columns› ORDER BY ‹columns› The filter criteria, year range, and group by are all optional. The filter criteria is a conjunction of one or more comparisons or disjunctions of comparisons.

This package is specific to PAPolicy, but was developed as a separate project for testing purposes.