One or more structured sets of persistent data, managed and stored as a unit and generally associated with software to update and query the data.
12
votes
8answers
4k views
Where can I obtain an up-to-date list of US ZIP Codes with Latitude and Longitude Geocodes?
NOTE: This began as a question on Stack Overflow, which has subsequently been closed. I also noticed a similar question about Most Up-To-Date Source for US Zip Code Boundaries, but I believe this ...
8
votes
2answers
556 views
Future for geospatial on App Engine?
2 years ago, this question was posted here at Gillies's blog, on date of 2009-05-15.
Future for geospatial on App Engine?
At that time there was no news relating to any apps of GIS web services ...
5
votes
2answers
2k views
Data organization strategies for .csv and .shp
I'm organizing a large amount of data for a project and the data is stored in .csv format, with a code to relate each row to a polygon in a .shp. I was planning on converting the .csv data into .dbf ...
4
votes
2answers
191 views
Using a web map to identify and access data
I am trying to making a webpage where the user pans and zooms on a map, and based on the location and zoom level, some data is displayed on the webpage (drawn from another source). The data that will ...
7
votes
1answer
927 views
Why is my XY Event Source layer only displaying at full extent?
My XY Event Source layer is only displaying at full extent and when I zoom in, the features disappear. If I select a feature in the attribute table, the feature is highlighted.
When I see this for a ...
6
votes
2answers
408 views
Imagery Database/Metadata Store
I'm a Remote Sensing PhD student, and as such I have a large number of satellite images that I'm working with. I'm starting to fail to keep track of them all and I have a lot of metadata that I want ...
10
votes
3answers
843 views
What is a good taxonomy or naming convention for files and folders containing GIS data?
My company has collected about 30 TBs of GIS data over the past 8 years, and I always find myself asking the following questions:
What type of data do we have for a given geographic area?
What are ...
44
votes
7answers
1k views
How do I get started with PostGis
I have been reading a lot about it, but I am struggling to find a good beginner's guide.
Which tutorials/books do you recommend? My past experience involves python and arcgis. But I have never worked ...
0
votes
2answers
513 views
osm2pgrouting connection failed
I'm importing data from my OSM file to a postgresql database using osm2pgrouting. I followed everything in from here and it went smoothly, until I try using osm2pgrouting. This is what happens:
...
1
vote
5answers
873 views
Store Geometry in a database with the ESRI Silverlight API
Is it possible to store geometry objects in a database using the ESRI Silverlight API? For this particular case, the client may have SQL Server 2005 installed instead of 2008 and therefore I can not ...
15
votes
6answers
3k views
What are the best databases for storing spatial data? Pros and Cons
A couple of days ago I installed the demo of spatialware 4.9 from MapInfo into my SQL Server 2005 install and loaded all the larger dataset into it. I was quite impressed with the performance vs the ...
23
votes
9answers
3k views
Is there any way I can use a Key-Value store for geospatial data?
I have used many relational databases in the past, but I have also read about all NoSQL databases, and the Key-Value stores looks interresting.
When I store geometric object I mostly use five indexed ...
