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.

learn more… | top users | synonyms

1
vote
1answer
44 views

CartoDB restricts uploading only up to 250 columns

I had developed an application using cartodb.js which transforms a csv file uploaded in cartodb database to geometries in map. The application works fine when there are 230 columns in csv file and the ...
1
vote
1answer
59 views

QGIS: multiple values in a single field of the attribute table

This is my first question on this site: it is probably already been exposed many times, but try to forgive me if I could not find it. Secondly, English is not my native language, I will try to be as ...
1
vote
1answer
102 views

How to convert a complex project of shape files to a spatialite database?

We have a QGIS project made of ~10 shape file layers. The layers are saved on a shared server, and the project is used on different computers. Recently polygons and polylines have been been ...
1
vote
3answers
332 views

Are there alternatives to the Google Places API, for lat/long retrieval?

I am looking for an alternative API to Google places both free and paid to extract location data (lat/long) for business locations i.e all of the "coffee shops in London". I have looked at Factual, ...
1
vote
3answers
44 views

How to find which areas/regions a list of lat/lons are in?

The Australian Bureau of Statistics (ABS) issues Esri shapefiles or MapInfo files which have a code # for each geographical area at various 'resolutions' and I have a database with a column of ...
1
vote
3answers
101 views

Disconnect QGIS from database without closing the whole program

I'm making PostGIS queries to a GIS database from python and I'm using QGIS to visually check the results of my queries, but every time I want to run a new query I have to close QGIS because it keeps ...
1
vote
2answers
3k views

POI database of tourist attractions, or POI database with popularity index

I'd like to build a list of popular points of interest and tourist attractions for many/every city in the world. Is there any sort of dataset that I can use for this which either contains only popular ...
1
vote
2answers
336 views

County-Level Ethnic Shapefile: United States

My professor usually provides the shapefiles that we deal with in our analyses of the United States--population, votes, etc., but I'd like to know how I can get these myself. I'd like, in particular, ...
1
vote
1answer
1k views

How to use a database in Qgis

What is the primary use of database in Q-Gis? How to connect to a database in Qgis?
1
vote
2answers
75 views

Advanced forms with QT designer

I have a QGIS project where a SHP-layer contains the IDs of plots besides vector data. I want to create a form with QTDesigner which enables me to enter the contact information of the landowner(s) ...
1
vote
2answers
49 views

How do I add my own data to an existing shape file?

I want to add event data to a geographical map. I have district shape files for Zimbabwe that I downloaded from GIS. However I now want to add my own data on to it. How do I do this? I have added ...
1
vote
1answer
65 views

QGIS Shapefile edited by multiple users

I have a Vector layer containing 36000+ line Objects with a large number of attributes that is currently saved as Shapefile on a server (local network). Multiple users access and edit this Layer ...
1
vote
3answers
99 views

Openlayers 3 GeoJson save and load

I am interested in openlayers 3, and I want to build a site. Already I can load features from variable in Geojson environment and I can draw features. But I could not write a code for saving drawn ...
1
vote
1answer
83 views

Cloud based database solution [closed]

I'm looking for a cloud based database solution where I can store about 1 GB worth of tabular data and both myself and my client can access to perform SQL queries. I'm looking for this database to ...
1
vote
1answer
151 views

Maintaining CAD drawings and Esri Geodatabase simultaneously?

I'm wondering if there is a best practice for maintaining both CAD and ESRI GDB sytems simultaneously? I work for my local municipality and as it is now the Eng Techs update reference drawings in CAD ...
1
vote
1answer
487 views

Attribute table field default value not transfering to new edited features

Using ESRI ArcMap 10.0, in a versioned environment, we are in a geo-database and have a feature class with a default value populated in field properties. When we create a new feature using editing ...
1
vote
1answer
498 views

How to transfer layer data from OpenLayers to PostGIS database or QGIS?

Supposing I have a created some layers in OpenLayers containing only Geometry Points, how do I transfer my data to a postGIS database? Is there a way to turn pure javascript/openlayers to a table in ...
1
vote
1answer
730 views

Joining MS Access (accdb) table to Feature Layer in ArcGIS for Desktop?

I would like to join a table from a microsoft access database (.accdb) to a featurelayer in ArcGIS 10.1. How do I associate tables from that database with existing layers that have a matching ...
1
vote
1answer
509 views

Flatten / collapse one-to-many table and keep the 'many' attributes separate

I have a data set that contains intersection data. Each intersection node has up to 6 links which is identified by IN_LINK and OUT_LINK attributes. I want to create a new dataset that includes the ...
1
vote
1answer
158 views

Possible to store 3D features such as dome into geospatial database?

Is it possible to store 3D features such as dome into geospatial database such as PostGIS? I know that it can store x,y,z data, can such complex features be stored into database?
1
vote
2answers
343 views

Most optimal way to create a (spatial) database for big amounts of data?

I am using QGIS, and on my way to set up a huge spatial database (geographical), where most of the data is points without geometry), along with other types of data (like lines in DXF and areas in ...
1
vote
1answer
455 views

Calculation to convert db data to Lat/Lng degrees

In a database I have the following Lat/Lng data. I wish to convert it to a readable format. 177514245:34726053 => S 32 7.3947, E 115 51.4245 177513828:34726948 => S 32 7.3052, E 115 51.3828 ...
1
vote
2answers
49 views

attach point grid data non-grid points

Possibly a strange one: I have a dataset with loads of fields of environmental (explanatory) data, as a regular grid of points (black dots in image), and another dataset of sampled (response) values ...
1
vote
1answer
70 views

How to write unique ID(s) of polygons in layer A intersecting polygons in layer B to field in layer B?

I'm working in ArcGIS 10.1. Suppose that I have two polygon layers, A and B. Polygons in layer B can have one of a few relationships to those in layer A: They may be completely contained by ...
1
vote
1answer
580 views

Google maps api, several moving markers using a csv file containing the coordinates

I collected 5 sets of coordinates of moving vehicles and I want to play the scene using googlemaps API showing those 5 vehicles moving. The sets are saved in a postgresql table. is it possible ? if ...
1
vote
2answers
2k views

One Polygon Joining to Database with Many matching records

Using ArcMap 10.1. Is this possible to have one polygon and join to a database/excel with many matching records? I would like to have 1 polygon but match to 100 corresponding records in a table. When ...
1
vote
1answer
558 views

QGIS error when open project when layer via accesses the database

I changed from QGIS 1.7.3 to 1.8.0. Problem is that I can´t open QGIS Projects, QGIS crashes when there are layers involved loaded via access-database connection. I used eVis. What can I do?
1
vote
1answer
301 views

Creating admin roles with limited access to PostGIS

I'm trying to cram three different organisations into one server. Today they each have their own geoserver instance connected to separate PostGIS databases, which works fine. But now they also need to ...
1
vote
2answers
814 views

Apply Database based Rules to Openlayers

im trying to apply rules, where the data is fetched from an external database. This is my code: // create a new style and add rules var defStyle = new OpenLayers.Style({ ...
1
vote
2answers
40 views

Animating polygon style over time in QGIS?

I have a shapefile, consisting of polygons. I can join a layer to a database file, and use an attribute (database value) to "style" (color in) the polygons to give me a visual representation of the ...
1
vote
1answer
106 views

How to create template_postgis database?

I wrote the following code to psql (Sql Shell) createdb -T template_postgis nyc; but does not work because syntax error . trying to make an example of the links related aim GeoServer. I have ...
1
vote
1answer
75 views

Column length editing in QGIS or ARCGIS

Can anyone suggest how I can change the length of an existing column (For ex. column name -- ABCD, column_Type -- Text, Length -- 254). It would be great to have solution on platforms like ArcGIS or ...
1
vote
1answer
72 views

How to save selected features from a postgis database into a new mini database

I have a postgis(v2.1.3)/postgresql(v9.3) database with geometry (geom1, geom2, etc.) and attribute (attr1, attr2, attr3, etc.) tables. The attribute tables are linked to the geometry tables using ...
1
vote
1answer
306 views

How to import geometry data from csv file to postgres?

I have geometry file in *.xls file, but when I save in *.csv it say "some feature in your workbook might be lost if you save it as CSV (Comma delimited)" however I keep that file anyway and when I ...
1
vote
1answer
123 views

What is best way to reorganize osm into PostGIS database entity?

I'm just wondering how to reorganize the OSM given entity to more flexible and schematic purpose. The OSM gave 4 entities the planet_osm_line, planet_osm_point, planet_osm_polygon and ...
1
vote
3answers
439 views

How to create efficient database for routing?

I created a database of many important features and locations of my city, and I want to find shortest/fastest path between two locations. Now, I'm calculating the route by using A* algorithm in Java ...
1
vote
1answer
103 views

How to import a postgis database in ubuntu (osgeo live 7)

How does one import a postgis database in the ubuntu/osgeo live environment? In windows I would copy the backed up database file into the postgres bin folder and then use cmd to restore the databse. ...
1
vote
1answer
115 views

Saving a subset of a database

Here is a complete beginner´s question, maybe someone has time to help: I just downloaded the Corine land cover sqlite file, the whole database has 5.5 GB and takes forever to open. How can I save a ...
1
vote
2answers
246 views

ArcReader 10.1 trouble (loading and printing is taking very long ime)

We've run into printing problems in ArcReader 10.1. Our trouble is with a particular floodplain feature class located in an SDE database. It simply takes forever to load! Then, when printing, it takes ...
1
vote
1answer
327 views

Importation of .csv on grass gis converts numeric data to string data

When importing a csv file on grass7, the numeric data is converted into a data of type string. My csv looks like this : id_core value 1 F1 83.0611472396 2 F2 98.8584345936 3 F3 ...
1
vote
1answer
499 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 ...
1
vote
3answers
653 views

Load information about a feature

I must mention first of all that I am very new to this area... I am developing a GIS application. I created a simple map using geoserver with openlayers, it is all working through apache tomcat - and ...
1
vote
1answer
52 views

Delete table rows in non-spatial database using arcpy

Working on a python script that does a bit of spatial analysis on a few layers, a spatial join of those layers, and then pulls data from a couple of other tables and holds them all in an in_memory ...
1
vote
0answers
70 views

Career after GIS Analyst [closed]

I am 23 years old. BSC.IT Graduate, and currently working as a GIS Analyst in Mumbai for last 1.5 years. I am planning to do SQL Certification followed by Oracle. Would it be helpful? I am interested ...
1
vote
0answers
22 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 ...
1
vote
1answer
62 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 ...
1
vote
0answers
24 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 ...
1
vote
1answer
102 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 >= ...
1
vote
0answers
72 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 ...
1
vote
1answer
124 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 ...