Whether you're canvassing a congressional district, managing a sales
region, mapping city bus schedules, or analyzing local cancer rates,
thinking spatially opens up limitless possibilities for database users.
PostGIS, a freely available open-source spatial database extender, can
help you answer questions that you could not answer using a mere
relational database. Its feature set equals or surpasses proprietary
alternatives, allowing you to create location-aware queries and
features with just a few lines of SQL code.
PostGIS in Action is the first book devoted entirely to PostGIS. It will
help both new and experienced users write spatial queries to solve real-
world problems. For those with experience in more traditional relational
databases, this book provides a background in vector-based GIS so you
can quickly move to analyzing, viewing, and mapping data. Advanced users
will learn how to optimize queries for maximum speed, simplify geometries
for greater efficiency, and create custom functions suited specifically
to their applications. It also discusses the new features available in
PostgreSQL 9.0 /9.1 and PostGIS 2.0 and provides tutorials on using
additional open source GIS tools in conjunction with PostGIS.

Download File Size:10.55 MB

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