A self-contained SQL database engine.

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12
votes
2answers
2k views

sqlite to spatialite

I have a sqlite database with a table that has a column for longitude and one for latitude. Is there a way to make this data base 'spatial'?
8
votes
5answers
2k views

How do I serve data in a sqlite database on a shared web host, like GoDaddy, onto a GIS web map?

I am new to the web mapping arena. I currently am managing a website and would like to add a mapping portion to it, mostly for some simple viewing and querying of a small number of layers. For ...
8
votes
1answer
439 views

Is Read Only nature of SQLite support in ArcGIS for Desktop 10.2 documented?

I've recently started creating SQLite geodatabases using ArcGIS for Desktop 10.2 with both ST_GEOMETRY and SPATIALITE storage data types and was impressed by how easy this was to do. I then tried to ...
7
votes
2answers
231 views

How do I use the Natural Earth SQLite DB with QGIS?

I just downloaded the Natural Earth data in SQLite format from http://www.naturalearthdata.com/downloads/. I had assumed that this would be a SpatiaLite database, but it appears not to be! QGIS is ...
5
votes
1answer
443 views

Is SpatiaLite or SQLite Spatial an Accepted Standard?

The reason why I ask this is because I have been undertaking some testing and have found that there seems to be many implementation and not all of them are interchangeable. For example: FME can read ...
4
votes
3answers
977 views

How do I add (and map) a non-spatial table to QGIS from SQLite?

I have an sqlite file from my Wigle Android app (wiglewifi.sqlite). It's not a spatial file, just tables with lat/lon and other data. I can add spatialite layers just fine, but cannot seem to find a ...
4
votes
3answers
352 views

How to merge close points into polygon?

I have a set of coordinates (points & no overlaps) in a single table,each containing attribute number fields,like in the following image. I want to merge these points into smallest polygons by ...
4
votes
2answers
247 views

How to remove redundant points

We basically have points table including vehicle routes.In huge traffic conditions,devices collecting data on route may output redundant points where at any coordinate same points may repeat.We can ...
4
votes
1answer
115 views

Is it possible to have a single foreign key column referenced to two or more different tables?

In Spatialite (3.0.1), having a normal (non-spatial) table, I would like to relate it to two different spatial tables, with different geometries types (multipolygons and polylines), using the same ...
4
votes
1answer
1k views

Help importing osm data into spatialite

I am trying to import OSM data into Spatialite. The data is a query from overpass called features.osm I'm using spatialite 3.0, and following examples, I have created a new database with: $ ...
4
votes
1answer
126 views

How to load Spatialite extension via SQLite3 ODBC Driver?

I am having trouble getting the Spatialite extension to load as part of the SQLite3 ODBC driver...[aka the joys of making software somewhat spatial when it tries so hard not to be]. What works ...
3
votes
1answer
625 views

Interpolate undulations for given points using a geoid model

I have two databases, the first one (F.tsj) contains gps points: coordinates and ellipsoid heights and the second one is simply a geoid model where every line stores latitude, longitude, and ...
3
votes
1answer
176 views

Why is Spatialite showing dates in MM-DD-YYYY format?

I have a table with a dates column that is formatted in MM-DD-YYYY format, as shown in SQL SELECT statements. I'm using Qspatilite (QGIS 1.8) and Spatialite GUI. When I ORDER BY the date column it ...
3
votes
1answer
66 views

pyspatialite: Connot insert geometry

I'd like to insert a row with a point geometry with pyspatialite. The sql looks like this: insert into eqdata(origin_time, url, mag, lat, lon, depth, m_a, region, mt, the_geom) ...
3
votes
1answer
103 views

python sqlite giving errors

I have python code that I am executing but it gives me following error: <sqlite3.Cursor object at 0x7f3c7666dc00> when I execute the cur.execute(statement). the code that is below the ...
3
votes
2answers
975 views

How to read the GEOMETRY table inside a sqlite database

I'm working on an android app which should display some lineobjects stored in a sqlite database. This sqlite database is created through an export in QuantumGIS. My first question is it a real ...
3
votes
0answers
30 views

Why does the QgsVectorFileWriter have probelms creating vector files?

I am using QGis 2.0.1 and have tried to create a new GIS feature file (SQLite, Spatialite, and Shapefile) of a subset of the data. I am then saving a copy of the style of this layer and applying it to ...
3
votes
2answers
154 views

Sqlite, Python 2.7 and Spatialite

I am trying to spatially enable my sqlite database: import sqlite3 db = r'c:\temp\mydata.sqlite' conn = sqlite3.connect(db) conn.enable_load_extension(True) cur = conn.cursor() cur.execute(r"SELECT ...
2
votes
3answers
489 views

Ogr2Ogr SQLite Geometry Functions

I believe title is all clear.I'm using Ogr2ogr utilities & binaries to read geometry. I used something like this: ogr2ogr -f "SQLite" test2.sqlite test.sqlite -sql "SELECT ...
2
votes
2answers
663 views

Export from PostGIS to SpatiaLite?

My PostGIS database contains OSM data from my country. For transportation reasons I want to export a spatial view I created from that data to a SpatiaLite database. Is there any way to directly ...
2
votes
1answer
1k views

Queries on virtual network in Spatialite only make errors

I've installed Spatialite 2.4 in Ubuntu. I try to convert an osm file into a roads network using this tutorial and make searches on it, but the queries only produce "no column" errors. $ ...
2
votes
2answers
186 views

Is there a way for multiple users to use an SQLite/SpatiaLite db simultaneously?

Is there a way that multiple users can use the SQLite / SpatiaLite database simultaneously? Thank you for your feedback.
2
votes
1answer
417 views

How to build Android spatialite?

I have been trying to build spatialite for Android for a few days now without success. I have even tried the recent documentation from the Google project page here: ...
2
votes
1answer
116 views

Qspatialite plugin problems with queries using inner join

I'm trying to create a layer in QGIS from a sqlite database using a query from 2 tables: one has spatial data and the other doesn't. When I build the query using Qspatialite using the 'Advance SQL ...
2
votes
1answer
790 views

How to combine MapInfo tab files into one spatialite DB?

I have many folders, each with a collection of MapInfo tab files (each folder has the same table names). For each folder I want to merge the tab files into one spatialite DB. My current method is to ...
2
votes
1answer
605 views

How to fix The procedure entry point squlites3_open_v2 could not be located in the dynamic link library squlite3.dll? [duplicate]

Possible Duplicate: How to fix QGIS error “Entry Point could not be located”? I downloaded QGIS to my laptop (Window 7 64b) yesterday but when I click on the desktop logo I get the ...
2
votes
1answer
658 views

How to use SQLite db with QGIS plugin?

Hi I would like to use SQLite for storing some information in my plugin for QGIS. I have a problem: if I put the db let say test.db among the resources as file, after compilied the resorce.qrc file, ...
2
votes
1answer
598 views

integrating spatialite and php (sqlite3) on windows platform

anyone can give me an explanation about how to integrate spatialite with php(sqlite3)-windows platforms. I have tried to refer from this link ...
2
votes
0answers
69 views

What is a good way to retrieve geographic data along with imgs and mp3 files?

I'm working in the Django backend of an audio guide for tourism with mobile devices. Basically, the client (Phonegap app for Android and iOS) can follow a route over a map (Leaflet client) and see ...
2
votes
1answer
213 views

View HTML field data with QT4 browers as a QGIS Run Feature Action Tool

I've successfully populated a sqlite table with an HTML-encoded-table as a field attribute, and so there is literally a Table within a single field value in sqlite, for each record. This is going to ...
2
votes
0answers
97 views

QGIS 1.8.0 does not launch [duplicate]

I Installed the 1.8.0v on Win7 profesional SP1 system (as administrator) and I take this message: "The procedure entry point sqlite3_open_v2 could not be lovated in the dynamic library sqlite3.dll". ...
1
vote
1answer
177 views

special python library needed for spatialite?

It appears that pyspatialite is very outdated. Do I need a special library like pyspatialite in order to use the spatial functions of spatialite? Or can I just connect to the database via the normal ...
1
vote
1answer
34 views

naturalearth sqlite db not loading into qgis 2.2 [duplicate]

I downloaded the naturalearthdatabase in sqlite-format (http://www.naturalearthdata.com/downloads/, the downloadlink goes to http://kelso.it/x/nesqlite), but qgis 2.2 (running under win 7 64bit) does ...
1
vote
1answer
112 views

sqlite replace values

i have a table with two columns: one named index and the other is called tilenumber and the tilenumber is populated from the index column except that there is _ which needs to be removed from the ...
1
vote
2answers
520 views

ArcObjects table views or sqlite3 in Python?

Given a larger csv (1000+ points) with attributes, I need to do both attrbute and spatial queries on the data. Would it be faster to read the points into an xy feature class, and do the spatial and ...
1
vote
2answers
83 views

sqlite version error with ogr2ogr

I am trying to randomly select some points from a shape file using ogr2ogr and an SQL query via sqlite but it seems to baulk at the sqlite version: ogr2ogr -sql "SELECT * FROM probe_2004to2012 WHERE ...
1
vote
1answer
163 views

Multiple input shapefiles for ogr2ogr sqlite spatial operations

I'm running up against an issue doing a spatial operation requiring multiple input shapefiles using ogr2ogr and sqlite. I have: ogr2ogr -f "ESRI Shapefile" output.shp input.shp -dialect sqlite -sql ...
1
vote
1answer
62 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
1answer
94 views

What does “Computed -srcwin falls outside raster size” mean when clipping?

What does this mean, when I try to clip and save the result as a sqlite or other format please? "Computed -srcwin falls outside raster size of 7807x4771" cheers, Bruce
1
vote
1answer
336 views

Why doesn't SQL sum(dollar) work in SQLITE?

I've got a sqlite table with real numbers, two decimal place precision, in a mydollar_column. (There are no null values, but some of the values are negative numbers) For some reason, using sql on ...
1
vote
1answer
301 views

spatialite.dll with Python and QGIS - the specified module could not be found

I'm having a bit of a nightmare getting to the bottom of this DLL loading problem. The stand alone script works absolutely fine but the exact same code does not work within QGIS. import sys from ...
1
vote
1answer
209 views

How to save a joined spatialite table when each table contains PKUID fields?

QGIS 1.8.0 -- QSpatialite 6.0.7 -- Windows XP I have spatialite tables joined together that I need to save as a single table, but an error-message says that QGIS can't save the table because there ...
1
vote
1answer
240 views

How can a HTML table be stored within a database field as a BLOB, text or other value?

My Spatialite database has several thousand spatial polygon records In QGIS, each with a couple dozen field values. I also have many thousands more of additional tabular data relevant to those ...
1
vote
1answer
73 views

MapInfo TEXT in SQLite

I´m trying to add a TAB-file containing text-objects to a SQLIte database. I´ve already added points, lines and polygons, but when I try to add texts I get an error - something about an erroneous ...
1
vote
1answer
41 views

Create Buffer in meters Spatialite query

I am new to Spatialite. I have following query: select A.* from linka as A, pointa as B where Contains(Buffer(B.Geometry, 100), A.Geometry) Here, A.Geometry = LINESTRING(23.2161 69.95237, ...
1
vote
1answer
78 views

Field calculator uses wrong fields when working with joined data

I am having an issue in qgis table joins. i have a joined a csv file to a sqlite database and common id is used for join. the join is displays correctly in attribute table. the attributes in sqlite ...
1
vote
2answers
56 views

How to update polygon longitude if negative?

I have a polygon, with longitude in [-180, 180], with 2 parts around the dateline. I want to make a map centered on the date line. My plane is to: 1./ update the longitude, so that if lon < 0 , ...
1
vote
1answer
144 views

Trying to install SpatiaLite 4.3 with SQLite 3.8 on Windows 7

I'm new to the open-source GIS database world, and am trying to have SpatiaLite installed on my Windows 7 machine. I downloaded SQLite 3.8.2 and unpacked the 3 files in a newly created folder ...
1
vote
3answers
151 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
0answers
60 views

OGR Error : Silly size requested

I'm scripting OGR functionality in order to filter some mapinfo tables and convert them into sqlite files. ogr2ogr -f "SQLITE" newtest.sqlite test.tab -sql "SELECT cols FROM test WHERE .." where ...