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.

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79 views

Postgis/SpatiaLite SQL query to connect MySQL, Access or Oracle database

In SpatiaLite or Postgis, how can one create a SQL query to read a table from a MySql or Oracle database? I don't know **the correct SQL syntax to connect to a table in a MySql or Oracle database **....
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1answer
114 views

Can't upgrade to PostGIS 2.2

I am running on MAC OSX El Capitan. My version of postgres is 9.4.5.0. My PostGIS version is 2.1.7. I cannot upgrade to PostGIS 2.2, because when I am trying to do, it pops "PostGIS requires SFCGAL >= ...
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1answer
164 views

Getting netCDF data into PostGIS database using Python?

I can read the netCDF file data with netCDF-python or with gdalinfo, but I am unsure of the easiest way to get it into a PostGIS database. It would be really easy if I could convert the netCDF file ...
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1answer
34 views

Web map linked to database that shows one spatial location at a time

I have a simple database with a record for each research project that occured on a national forest. Each project area is associated with a polygon, and there are around 200 polygons that are piled ...
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1answer
172 views

Adding non geographic data from MSSQL Database to QGIS?

In QGIS (2.8) I am trying to add non-geometric data / flat data that originates in a MS SQL database. This flat data later should be joined with other layers etc. Connecting to the specific database =...
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509 views

Inserting coordinates from Google Maps into a Database

My question is pretty basic. I am using Android Google Maps to take the coordinates off a location on the map and I want to insert it into a PostgreSQL database. I know I have to use PostGIS but how ...
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0answers
32 views

DataB and DataB-copy worked on simultaniously - how merge DataB-copy into DataB

ArcGis 10 - EDITED (sorry for not being more specific, quite new to the arcgis world) We need to enter A LOT of Map data (Sewage system) into a Database in a relatively short time. It involves an ...
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0answers
84 views

Search in Bounding Boxes and Locations

Description of the problem (what I need): I have a set of bounding boxes (maybe the actual data is a location[longitude, latitude] in which case the bounding box will have identical corners). I have ...
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29 views

Is there any map API that allows you to pull an address range from a polygon?

I've seen a lot of answers saying you can't draw polygons and get the exact addresses of all of the places contained; thankfully, I don't need so much info. I'm looking for a way to get a vague ...
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0answers
52 views

QGIS: Edits in attribute table are not updated in Postgis database. Why?

As the title say. I edit values in the attribute tables of my QGIS project but there is no update to the database. I refreshed in QGIS as well as the database. What else do I need to do?
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516 views

Filemaker interface with QGIS

I have created a map of features on an archaeological site. The artifact inventory is in FileMaker Pro 12. Rather than creating a CSV file and using that as the attribute table, I would rather, if ...
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0answers
95 views

Creating an automatic connection to Microsoft SQL database instance in QGIS

I have connected to an MS SQL database in QGIS using the Add MS SQL table(s) tool. However I have a lot of feature in my database and so it is inconvenient to reconnect to the database every time I ...
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0answers
576 views

How do I capture data from an OBD-II device?

So I happen to have a little bit of web experience, and have recently bought an OBD-II device. Basically, I'm trying to log certain metrics from the car, such as location and other diagnostics. I ...
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0answers
2k views

Coverting annotation into a shapefile

I have created an annotation feature class in Arc10 and when viewed within the database, looks great. However, whenever I go into catalog and export the annotation feature class to a shapefile, it ...
2
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0answers
74 views

Bounding Box approximation when calculating in euclidic space?

Although I will illustrate my problem using a database, I think this is a quite general GIS question. I hope I came to the right place to ask. I am working with a system that runs on a normal ...
2
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0answers
69 views

Raster layer with unique vector for each raster cell?

I have been looking around several hours, even days, but couldn't find a clear answer to my question. I am working on a WebGIS tool that interprets local geology. From more than 70 asc-files, I would ...
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0answers
24 views

QGIS not loading default layer style from PostgreSQL database on startup

I have saved a vector layer style to my PostgreSQL database source. I then amended the layer_styles table record for the relevant layer by editing the styleqml field (just changed the outline_width ...
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0answers
24 views

Missing vector features when import from .sqlite to postgis?

I imported vector data from a .sqlite file to PostGIS but not all of my vector features imported. I haven't been able to determine a reason for most of the loss of features between the databases (...
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0answers
48 views

Is there any way to connect features (entities) of dxf to database in python?

I'm using gdal, ezdxf, sqlite python packages and sqlite ODBC driver. They work fine, and in AutoCAD I can easily manually connect to my dbase.sqlite (read only) using _DBCONFIGURE and _DBCONNECT ...
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0answers
7 views

Showing Attribute Tables in GeoExt

We are making a simple webmap with a Postgis database and Geoserver. So now we have the layers working in Geoserver and we can see the cartography and the the features using GeoExt, but we're not able ...
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0answers
30 views

Saving styles to database

In QGIS, the option to save the style to a database (postgres) does not appear in the drop down list if the postgis table has been opened using add vector layer and then entering the postgres database ...
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0answers
28 views

Export SQL table with images to Qgis

In MySQL Workbench 6.3 CE I created a table with some columns. One of this columns is of data type 'BLOB' to insert an image. Now i am looking for a way to export this table and import this table ...
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82 views

Registering database to ArcGIS for Server gives null error?

I'm trying to register a database to ArcGIS for Server 10.2.0 from the web server manager using sde file from ArcMap. The connection works fine in ArcMap. But when registering I'm only getting a "...
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0answers
167 views

Why is mapserver returning a blank image?

I am trying to load a layer from a postgis database, mapserver does not return anything. I think I have narrowed the problem down to the fact that the sql query mapserver is running is returning ...
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0answers
35 views

Export only one value from a one-band raster

I have a PostGIS database with a georeferenced raster, with one band which contains values from 0 to 255. I should export it to a transparent GeoTiff picture in which the only visible pixels are those ...
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0answers
126 views

Road traffic database sample?

I would like to do some experiments on a traffic forecasting neural network and I need some real traffic data to run the network. My question is where can I download some real traffic statistics data ...
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0answers
113 views

Word cloud labels in QGIS from database

I would like to do some word clouding as labels in QGIS from a series of tables in a database. Examples of word clouds can be found here: Word Cloud - Google Search I have two tables in a database: ...
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0answers
141 views

world city database (with lon,lat) & population per year

I'm building a visualisation with cities population around the globe for a website, found the MaxMind free database that includes most cities around the globe with coordinates and population, which is ...
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0answers
47 views

Is it possible to retrieve lost versioned data in SQL Server Management Studio?

One of my staff accidentally deleted a feature class she was creating in her version before I reconciled it. I have grabbed a back up of the database from yesterday in SQL Management Studio. Is ...
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0answers
63 views

Appropriate data structure for a bunch of polygons

I'm not a GIS guy so this might be a very misguided question. At present I have compiled a python dictionary, on which I perform some simple processing and return some answers. My data is structured ...
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0answers
76 views

Allocate places according to distance

I've asked this over on Stack Overflow but thought that someone may have a GI point of view that may help: As an over-simplified example I have a list of events that have a maximum attendance: ...
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0answers
512 views

Connect QGIS to MSSQL view (i.e. not a table)

I've got a MSSQL view containing data I want to show in QGIS. The view transforms a BLOB field containing WKB that is in one of my tables into a SQL geometry, which QGIS will be able to display. ...
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0answers
87 views

Creating tables using the coordinates of weighted graph?

Hello All, Kindly let me know how to create tables using the coordinates of a weighted graph ??
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76 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 ...
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0answers
200 views

How exactly is an SLD_body object (when extracted from its XML href) structured when using a cElementTree to parse it?

I'm trying to export data from a PostGIS database into a geoserver and I've gotten it to where I can get the PostGIS database to point to the geoserver (I'm doing this as a python script for a GIS ...
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0answers
100 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 ...
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24 views

Is it correct - according to database theory - to have a primary key in a geodatabase table, other than the OBJECTID?

I am making a data model for my geodatabase. I'm trying to wrap my head around the issue of primary keys in geodatabases, and wether or not my model is correct according to database theory. I would ...
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0answers
20 views

Database modeling for big data (big set of points X big sets of possible values for each points)?

I'm building a PostgreSQL database with the intent to host modelisation results for different projects. Each project has a set of receptors points (~5000-10000 receptors) and have many results sets (...
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0answers
55 views

How can I add the PostGIS extension?

I'm experiencing difficulties when trying to add the PostGIS extension to PostgreSQL. I wasn't able to add the extension during the installation because of an error. Now I'm trying to add the ...
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0answers
25 views

Null output from Transform function of Spatialite

I am using Spatialite, an extension of SQlite and I have some problems running the transform function. According to the Spatialite functions page (http://www.gaia-gis.it/gaia-sins/spatialite-sql-4.2....
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0answers
29 views

Using Definition Query to pull out monthly ridership data?

I have a database of bus stop ridership for Jan-Nov of 2015. There is an existing data set information pertaining to bus stops. I previously linked individual tabs (for each month) to the bus stop ...
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0answers
23 views

Using FEAT_NUM Instead of FID as a Unique Identifier

In GIS data which entity would be the definitive Global Unique Identifier ? The FID which is a system generated unique number that once deleted will never be generated or a FEAT_NUM which is ...
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50 views

Linked Excel file with Coordinates to Shapefile QGIS

There may not be an answer to this as I have yet to find anything from my searches but here goes. I have an excel file which is continually updated my multiple users. Within the excel file each row ...
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0answers
213 views

How do I set up a PostgreSQL database for use with PostGIS and GeoDjango?

The Django docs say to use createdb -T template_postgis geodjango but I already have a database set up. While trying to find out what this actually does and a way to apply it to an existing ...
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0answers
18 views

Change dbase table alias

How can I change the alias of a dbase table without completley renaming the file? I've tried right clicking the the file, opening properties, and changing the alias, but it will not allow me to edit ...
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0answers
146 views

How to use NewSQL Database with GPS tool with Node.JS as server side programming

I am a web project manager and I want to create a website to show current position of cars on the map (google or ARC). I know how to create the website, but I don't know how to fetch the longitudes ...
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95 views

In ArcGIS, how to automatically recalculate a calculation if I modify the Excel data source?

There's a database with buildings. Each of them has a few parameters, for example building type codes. In a distinct table each building type codes has 4 attributes. During the Join, the datas will ...
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123 views

HTML Popup Database Actions

I'm working on a collection of points on the map, each comes with a bunch of properties. I succeeded using a customized XSL template to show the information when I click on any point. And now what I ...
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0answers
49 views

How can I import layers into a database?

According to the QGIS User Guide (release 1.8.0, page 203/204) I only have to drag a layer from the QGIS Browser to the DB Manager. But for me this does not work.
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160 views

SDE Replication works through ArcMap but not through ArcCatalog

I'm running 10.1 on a 10.0 SDE database. We're trying to replicate our database (one-way parent to child) to a file geodatabase. Ideally I'd like to have this automated using python or .bat files but ...