Acronym for Structured Query Language. A syntax for retrieving and manipulating data from a relational database.

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1answer
16 views

Why can't I add a Spatialite table with clip results in QGIS?

I have 2 layers and I want to make a clip of layer 1 with layer 2 in SpatiaLite (I'm using the DB Manager within QGIS). That's the code I'm using: create table clipped_lines as select * from lines, ...
1
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1answer
16 views

MapInfo, SQL data from multiple tab files which have the same columns

New to the GIS forum so apologies in advance for any potential etiquette failures... I'm working in MapInfo. I have multiple tables with the same structure. One of my columns is pipe diameter. I ...
1
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1answer
16 views

CartoDB - “sql applied has errors” message - where can I see the error text?

I'm still getting my bearings with the interface it seems... When running a SQL query in CartoDB against a table... it seems like a get the correct result, but I also get a see a "sql applied has ...
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0answers
7 views

Creating Temp Table in SQL

I am trying to understand how I could make my Temporary Table Ambiguous instead of having to write out all of the different combinations within my data: Declare @Year as Integer Declare @LastYear as ...
1
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1answer
17 views

send to WFS a custom sql query using jquery

If anyone please, could gimme me a hand on this question. I have a web sql client that the user can write a sql statement and I want to sent it via WFS to geoserver, run it, and based on the results, ...
2
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2answers
55 views

Query for numeric field against text field that contains a numeric value

In my database, I have one field, Service_Day, formatted as numeric, which contains a single digit number 1 through 7 (for days of week). I want to compare it against another field, called Region, ...
0
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1answer
25 views

SQL in CartoDB to select using OR more efficiently

I made this map a CartoDB map to to show the countries that have banned their citizens working as maids in the Gulf states, I also want to show the Gulf states as one colour. I created this SQL ...
0
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2answers
27 views

Can I include data from multiple rows in CartoDB infowindow?

I have a visualization in CartoDB of a set of data points in table pointlayer. I am using cartodb.js and have a nice map for browser consumption. When a user clicks on a point, I'd like to run a sql ...
3
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0answers
71 views

Preserve datatypes when using SQLite and QGIS

Following Nathan's SpatiaLite/DBManager solution in this answer, I find that once the layer is loaded from DB Manager into QGIS (2.6.1), any calculated fields are appearing as text values instead of ...
0
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2answers
52 views

How to use cartodb.js without storing sql in javascript

Using cartodb.js, how can I change the layer definition without building the sql dynamically in javascript and passing it as a parameter. Aside from revealing my table structure (not a huge deal at ...
1
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2answers
50 views

Multi Value User Input as Variable in SQL Statement

I'm attempting to write a script that takes a user's selection as a parameter and uses that as part of the SelectByAttributes function. The parameter represents field attributes and is multi value, ...
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0answers
13 views

SpatiaLite / QspatiaLite: get subgroup row ids

I'm using QspatiaLite plugin to join polygon ids to points that are within those polygons. Now I' d like to get subgroup rownumbers for each subgroup of points with same polygon id! Like so.. grp_ID ...
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5answers
96 views

Selectively removing whitespace from a string with SQL

I have two columns of adresses that I need to join. Column 1 has the adresses formatted as "Some Street 12 A" while column 2 has them formatted as "Some Street 12A." Ie. the last whitespace between ...
0
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1answer
27 views

Modeling SQL Query to add statistical data to a geometry

Hello I have a problem modelling a SQL Query for the following problem: I have two tables with geometries from Shapefile der Verwaltungsgrenzen (WGS84). Of interest for me are Kreise and Gemeinden, ...
0
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0answers
24 views

Query for finding nearest distance and driving time from objects in a different tables

I have 4 postGIS tables: employees_wgs Facilites and (created by osm2po): at_2po_4pgr at_2po_4pgr_vertices_pgr What I want to do is: make a query to populate two columns in "employees_wgs" ...
0
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0answers
25 views

How to save SQL-like WHERE as .qqf in QGIS 2.6?

I used to use QGIS 1.7.4. And there was "advanced search". I can save SQL where clause as .qqf. But I installed QGIS 2.6 and I cannot find this kind of things. Could you please teach me how to save ...
6
votes
1answer
92 views

SQL “Case” statement when count(*) is 0

I am trying to write the following SQL command using case clause. with x as (select the_geom as geom from table1 where st_dwithin(the_geom, st_setsrid(st_makepoint(28.959495,41.019913), 4326), ...
1
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1answer
65 views

Computing intersections for each geometry in a table

I have a table with many Linestrings and for each of these Linestrings I need to figure out which other Linestrings, from the same table, intersect with it. If I recall correctly this gives me a ...
1
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1answer
40 views

OGROGR and SQL: unexpected reserved keyword error?

As I do the following query on naturalearth places.shp : ogr2ogr -f GeoJSON -sql "SELECT * FROM ne_10m_populated_places WHERE ADM0NAME = 'India' ORDER BY POP_MAX DESC LIMIT 1,30" places.tmp.geo.json ...
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2answers
80 views

OGR2OGR and SQL: selecting 30 biggest places from a country?

I use ogr2org to filter naturalearth places.shp : ogr2ogr -f GeoJSON -where "ADM0NAME = 'India' AND POP_MAX > 500000" places.tmp.geo.json ne_10m_populated_places.shp I would prefer to select the ...
1
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1answer
49 views

How to perform a calculation using attributes of groups of features in ArcGIS?

I have a table with information about 2000 aquifers (thickness, area, depth, volume etc.; there are 20 fields approximately). One of these fields is an internal code, i.e. DK_12_456_XXX; the last 3 ...
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2answers
57 views

SQL filter to show one layer only if another layer is missing

I have two oracle tables that represent buildings in my town. The first table represent buildings that are surveyed and measured accurately but doesn't cover all the parts of the town while the second ...
2
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2answers
213 views

Spatial join versus classical join

What are the main differences between a spatial join and a classical database join such as an equi (inner) join?
0
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1answer
40 views

SpatiaLite - WITH, view or sub-query?

I am running on Windows 8.1 SpatiaLite_gui 1.8.0, SpatiaLite version 4.2.0 and SQLite 3.8.5. I need to interrogate one single spatial table whith those attributes: ID | val | val_1 | val_2 | Geom ...
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0answers
15 views

Needing to find parent zip code of a bunch of missing zip codes in the US

We're using MapPoint to export zip code / territory combinations. Unfortunately, the export doesn't include PO Box zip codes which mean that we're missing a lot of zip codes The PO Box zip codes are ...
0
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0answers
71 views

ModelBuilder Iterate Row Selection & Variable Expected Fields in Summary Statistics

I have a model using a Iterate Row Selection. The inline variable produced by the iterator is used in the SQL expression of a Table Select tool. Note that this Table Select tool does not use the ...
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0answers
138 views

ArcMap “One or more layers failed to draw: An invalid SQL statement was used”

I created a model involving the tool Make XY Event Layer because I want to plot latitude and longitude points in CSV file columns. The model runs without errors and appears to have plotted the points ...
5
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2answers
80 views

How to draw radius of a circular point buffer using PostGIS

I have generated circular buffers of points in a shapefile. The generated circles and points share a common ID/key, say pt_id. My question is Is it possible to use PostGIS to generate a third layer ...
4
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1answer
86 views

SQL-query in arcpy - SELECT WHERE feature between two values

I need to select features between two values in python with arcpy. However, whenever I try to run the code below, it returns with error message "An invalid SQL statement was used". whereclause = ...
0
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0answers
38 views

Apply raster contraints on single table with multiple files

I have a raster table (pre-created using CREATE TABLE) containing multiple individual raster files that I append piece by piece to a final table. The table itself is in its own tablespace 'gisdir' and ...
1
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2answers
56 views

How to use an IF THEN statement in an sql Select expression?

I need to select the top 3 records from a table, but depending on an inline variable from an iteration, occasionally one of those top 3 records should not be selected and should be replaced by the top ...
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23 views

ERROR: operator is not unique: unknown || geometry

EXECUTE 'INSERT INTO Panden_intersect(St_ints,pnd1,pnd1_area,status1,dtm_strt1,pnd2,pnd2_area,status2,dtm_strt2,CtrDist) Values ( ...
1
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1answer
91 views

What options are there for geolocation-aware SQL databses?

I need to implement an SQL database that can make queries using geo-location based logic. e.g. select rows within 500m of coordinate x, y What options are available to do this with sqlite, mySQL, ...
0
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0answers
34 views

ogr2ogr export to KML from SQLite, when using SELECT for fields Linestrings are lost

I'm using: ogr2ogr -sql "SELECT * FROM 'trails_utm_utf8' ORDER BY name ASC" -f KML trails.kml trails_utm_utf8.sqlite -s_srs EPSG:900913 -t_srs EPSG:4326 to reorder, re-project and export to KML ...
2
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0answers
51 views

SQL Query does not work in ModelBuilder (but works elsewhere)

I am having issues getting a simple SQL query to work in model builder. It works fine when I use it with the standard "Select features by attributes tool", but ModelBuilder doesn't find the required ...
0
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2answers
68 views

Postgis: Point-in-polygon check + feature attributes inheritance

I have two tables in Postgis 2.1 database: Polygon features with a reach attributive information; Regular point grid; I would like to get a SQL query returning the regular point grid with ...
3
votes
1answer
498 views

What does “foo” stand for in this PostGIS command?

The help page for the PostGIS function ST_PixelAsCentroids has this line of code as a usage example: SELECT x, y, val, ST_AsText(geom) FROM (SELECT (ST_PixelAsCentroids(rast, 1)).* FROM dummy_rast ...
0
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1answer
52 views

selecting elements of a specific geometry type in PostgresSQL/PostGIS

I was reading a postgis tutorial and noticed that unlike working with shapefiles, one can actually store different types of geometry in postgres. In a table created with multiple geometry types, the ...
1
vote
3answers
57 views

ST spatial queries to select multi-level location

I'm trying to write a query in SQL Server using 1 set of points and 2 sets of polygons. The polygons overlap, and I only want to select the points that fall inside of 1 polygon but not the other. I ...
1
vote
1answer
49 views

Loading raster in postgis and link it with an existing table

Relatively new to PostGIS and I am currently exploring the options to make one of my PostgreSQL Tables spatial. Essentially I want to store a raster object in a table that also contains essential ...
1
vote
1answer
34 views

How to create non-duplicate lines between all selected points in Spatialite?

There is a nice answer for the similar question for PostGIS. I tried to adapt it for my case where I need to connect all points from a point layer, but unfortunately I get duplicate geometries: lines ...
2
votes
1answer
33 views

SQL Server equivelent to Arcmap Intersect for polygons?

I have three different sets of GEOMETRY Polygon datasets in SQL Server that completely overlap. I need to create a new dataset that has a polygon for each unique area of the three layers. So ...
2
votes
2answers
115 views

Get Coded Value Domains from a Oracle geodatabase using PLSQL

i'm trying to get all coded value domains from a Oracle geodatabase. I dont have access to arcmap. I only have access to oracle 10g database. SELECT I.NAME Domain, ...
0
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1answer
46 views

Get a sql view to persist in a CartoDB visualization

I'm new to CartoDB and so far impressed. But I'm struggling with how to get a sql query to persist in a visualization. I type it in, like 'SELECT * FROM env_feedlots where active = 'Y' and BIRDS > 0', ...
0
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1answer
56 views

How to preserve GPX track point (trkpt) info when performing ogr2ogr with sql ST_union operation

I am performing GDAL ogr2org operation with ST_union(Geometry) on tracks from GPX file to split those at intersection points. Track points have elevation and depth info. In GPX track point entry looks ...
2
votes
1answer
65 views

If do not want to use pgRouting then what?

Good evening fellow GISers, I am interested in creating an online routing application. So supposing I have all the data I want into a postGIS database and loaded onto GeoServer and I am willing to ...
0
votes
1answer
167 views

Geometry datatype to latitude /Longitude MS SQL Server

I need to convert Sql Server geometry datatype to latitude /Longitude I have just imported a shapefile to my table (geometry) This query does not work:- select geom.Lat as [Latitude], ...
0
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1answer
23 views

create Geoserver SQL Views

I want to create an SQL View in my local Geoserver (2.4.4), acccording to the handbook. http://docs.geoserver.org/stable/en/user/data/database/sqlview.html They say: In order to create a SQL View ...
2
votes
0answers
36 views

SQL Error Message: Find and Replace for Date Field

Hi, I am attempting to use the find and replace function within the Attribute Table Options to replace fields that contain dates in the following format: month/day/year (e.g. 03/14/2014). The ...
2
votes
1answer
52 views

How to populate geography point using ST_MakePoint(long, lat)

I have a table called customer_campaign, and there is an empty column geom(geography) in it. So I want to fill it up by using ST_MakePoint(long, lat) in PostGIS, lat and long are two columns in the ...