0
votes
0answers
46 views

PyQGIS + PostGis: FATAL: sorry, too many clients already

I searched for questions regarding this problem and hadn't find one. I'm developing a custom application with a map canvas to show some geographic information from a PostGis database. After some ...
2
votes
0answers
22 views

Insertion of a raster geotiff in PostgreSQL database

I am new in PostgreSQL and psql. What is the method to insert a raster geotiff in a postgreSQL database using command psql? What is the best format? Someone indicates to save a raster image as BLOB ...
0
votes
3answers
868 views

How to create a new 'gis' database in PostGIS?

I'd like to create a new database in PostGIS, so I can load stuff into it while the current database is being used. According to the docs Some packaged distributions of PostGIS (in particular the ...
3
votes
1answer
284 views

Database connection failed

I am trying to connect from Arc Cataloge (version 10.1) to postgresql 9.2. But every time I try to make "Database Connection" I am getting this error: Failed to connect to the specified server. ...
2
votes
1answer
414 views

WFS & Feature Access -> Database connection / Database support (ArcGIS 10.2)

Over the last two days I've tried to set up and to use a postgreSQL database to use WFS and Feature Access. I've also started a thread in the esri forums, but I hope that I can reach a wider audience ...
1
vote
1answer
170 views

Are database client files platform specific?

I'm just looking for some clarification on a question that came up with me this morning. Are the DLL client files (libeay32.dll, libiconv-2.dll, libintl-8.dll, libpq.dll, and ssleay32.dll) platform ...
3
votes
2answers
213 views

Adding a GIS feature to existing database entry with QGIS

I've built a database with postgreSQL with tables, which include geometry columns. When I add some data to my non-geometry columns, I can see them in QGIS when I connect to my database using postgis. ...
3
votes
2answers
456 views

Can I import a .gml file into Spatialite in QGIS?

I have some Ordnance Survey Address Base data files which have a .gml extension. I have imported them to GGIS as vector layers along with some mapping data but would like to explore them with ...
0
votes
1answer
118 views

Column exists in DatabaseMetaData, but does not exist in relation?

I am using JDBC to query a PostgreSQL database. And I want to populate a column called wiki_url based on the value of another column, level which will determine which value of 5 columns to concatenate ...
1
vote
0answers
64 views

Database has duplicate values after running pgrouting

I am a newbie with postgresql and sql statements so maybe it is a trivial question, I'm sorry for that. I am working on a postgis database and try to use the pgrouting function. My goal is to store ...
6
votes
1answer
500 views

Data visualization and maintenance tool

Background Looking to leverage an existing GIS system for exploring organizational data. Architecture The following figure represents a high-level overview of the system's desired features: The ...
4
votes
1answer
216 views

Spatial index vs two coordinates indexes

I have a table with two columns: latitude and longitude. I want to get all objects inside a "rectangular" (well, rectangular in a lat/lon coordinate metric) bounding box: min-max latitude and min-max ...
4
votes
1answer
327 views

DBMS and ArcSDE Architecture for Large (Mostly Non-Spatial) Dataset

I have ~1000 fixed points representing data collection stations with multiple sensors, and a csv that is ~4.5GB of values in the format: id pointid sensor measdatetime measvalue 50345 500 ...
3
votes
1answer
1k views

Casting a Geography type in PostGIS

I have the following table defined, which uses PostGIS geography. CREATE TABLE test_geog ( id SERIAL PRIMARY KEY, boundary GEOGRAPHY(Polygon) ); I added the following test polygon to the ...
9
votes
4answers
744 views

Open Street Map and PostgreSQL what do I exactly need?

I make my first steps in the GIS world and everything is very new for me even if I work on a "huge" project (ie: for a single programmer) very related to maps. My project needs to know informations ...
1
vote
0answers
93 views

Getting started with storing LoST and GML searching

I am working on a logging and search database application. The application will receive event records containing XML LoST values (RFC5222 Location-To-Service-Translation). These records will be ...
8
votes
2answers
603 views

What are the Pros and Cons of hstore data type in postgis?

PostgreSQL has a module named hstore that implement the use of key/value pairs (it's something like the OpenStreetMap model, but in a single table). What are the Pros and Cons of hstore regarding GIS ...