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

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3
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1answer
596 views

Update a table with values from coordinates on GEOMETRY in Oracle

I have 2 columns in a table that represent the X and Y coordinates. The values in those columns don't match the actual coordinates and I want to update them with the coordinates values that are ...
0
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1answer
68 views

postGIS 'dynamic' SQL queries

I have a postGIS table: id value geometry 0 10 'g_0_10' 0 20 'g_0_20' 1 10 'g_1_10' 1 20 'g_1_20' 2 10 'g_2_10' 2 20 'g_2_20' ... ...
2
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0answers
80 views

Error on qGIS with postgresql views

I have a PostGIS database with various tables and views. With pgAdmin I can make requests on the tables, on the views, all is working. I add tables in QGIS 2.8, it's working, I can read, write, modify ...
1
vote
1answer
345 views

Querying Oracle geometry data type

How to query or find the geometry data type a given Oracle Database is using in SQL Developer (i.e. SDO_Geometry, ST_Geometry, etc)? I thought I could just describe a feature class within the ...
1
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0answers
120 views

ogr2ogr conversion error - Can't create fields of type Binary on shapefile layers

I'm having trouble using the ogr2ogr tool on the command line. My data is stored in SQL as binary, type is mixed polygons and multipolygons. I am using the following command for conversion from SQL to ...
1
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1answer
116 views

How can I limit a spatial binning query to a specific bounding box?

I am using Esri's GIS tools for Hadoop but I think the query is pretty standard stuff. The SQL/HQL below is from the Esri tutorial found here https://github.com/Esri/gis-tools-for-hadoop/wiki/...
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75 views

Postgres PostGIS geocode_intersection()- How to handle exception?

I have a table in Postgres with a set of records that are street names which needs to be geocoded to get an intersection point.Some of the records would be bad input and when using the ...
0
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1answer
131 views

Qgis 2.10 unable to add a new feature in spatialite via sql function “GeomFromText”

Using Python code in my plugin the function in sql language "GeomFromText(POINT(X Y))" gives the following error: "OperationalError: no such function: GeomFromText" Plugin functions in previous ...
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0answers
83 views

Creating Query Layer with 1:M relationship in ArcGIS?

I am trying to create a query layer in ArcGIS which contains 1:M relationship, When i execute query i am getting blank feature class. My query is as below SELECT a.Industrialcode, a.Industrialname, a....
2
votes
2answers
76 views

CartoDB's SQL API: Row too large

I am trying to run the following PostGIS query using CartoDB's SQL API: SELECT the_geom, ST_Area(ST_Intersection(the_geom::geography,ST_Buffer(ST_SetSRID(ST_MakePoint(-52.4379, -12.6235),4326)::...
4
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1answer
43 views

Cartodb API Read Only

Is it possible to generate an API-key in Cartodb with read-only permission? Seems like the default API-key has full controll
-1
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2answers
149 views

Sql Query in Postgresql

I am trying to execute a query but I am stuck. I have two tables A and B. The a table has columns gid, geometry(line-string) and value which cells is empty , the B table has got 3 columns gid, ...
0
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1answer
95 views

Where clause in MapInfo Table Updates

Is it possible to add a where condition to an update query in MapInfo? At the moment I have to do a query to select the records I need and then do an update on that query. I believe this is ...
0
votes
1answer
91 views

GDAL -SQL or -where options

ogr2ogr -overwrite -t_srs EPSG:3978 -f "ESRI Shapefile" -sql "SELECT * FROM 'Layer Name' WHERE FIELD_NAME = 'A CLASS'" dst.shp src.shp help me out here - looking to 1) reproject a shape and 2) ...
0
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0answers
85 views

Selecting all cells not containing a number in SQL

I have a field containing some values. In edit mode, when I click on any one of these values it gets replaced by 1.#QNAN in the cell. I would like to query the table for all cells containing 1.#...
2
votes
1answer
222 views

Show Log of the Sql statements that QGIS generates to retrieve Data from Postgis

Is there a ways to - make QGis log its generated SQL Statement or to - force POSTGIS to log all interaction with QGIS? There is something strange happening to the WFS layer I retrieve in QGIS, since ...
1
vote
1answer
143 views

How to select from geometry column in postgresql?

I've got a table which it has a geometry column filed by some point (ex. "POINT Z (116.309627 39.991285 148)"). now I want to select point's id from the table. I wrote follow sql Code but I force an ...
2
votes
2answers
300 views

how to snap points to lines in QGIS/PostGIS?

I'm attempting to snap approximately 900 points to a line table. I've tried recreating what I have found from a couple of PostGIS answers but not having much luck. To test, I've created two ...
1
vote
1answer
76 views

How to store multi-valued attributes in PostGis using Postgresql [closed]

I have a with meterid,meterreading,reader and date read.I wish to store this data using Postgis database. I used this code via postgresql to create the table CREATE TABLE MeterRdg( meterid ...
1
vote
1answer
108 views

Updating static GTFS data android

I have an android application that takes a static GTFS data that I manually turned into a database. How do I update this GTFS data automatically, or is that not possible?
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0answers
165 views

PostGIS dijkstra routing - specifying source and target as bigint instead of int4?

I'm currently working on a problem where I have to use PostGIS's pgr_dijkstra to calculate the shortest route from a starting point to a destination, and then use ST_AsGeoJSON to convert the route to ...
0
votes
1answer
40 views

Differences between columns in MapInfo

I have two columns in a nodes table, one column has the ground level of the node taken from the model and the other column has the ground level inferred from LiDAR. Is there a query that can be used ...
5
votes
2answers
150 views

QGIS expression builder include relation attributes

I have a set of symbols based on a table in postgis such as this id|type|action_1|action_2|geom In QGIS I have this table symbolised using a rule expression which works effectively. However this ...
2
votes
1answer
126 views

How can I do a subquery inside a subquery in PostGIS?

I need to add a subquery to a working function. Instead of select * from table, I'd like to select * from (select * from table where height>1500) as sub, something that works in other functions I ...
1
vote
1answer
68 views

PgRouting: Target vertex error

I'm trying to make a matrix that shows the cost from a node to the rest of the nodes in a network. The final result I'm looking for is not the cost, but only know if a car can or can not reach each ...
0
votes
1answer
47 views

Querying a raster per pixel using a secondary raster as a condition

So here's the problem. I have two rasters containing bathymetry data: one containing the bathymetry of the sea floor, we'll call this raster1, and another containing the difference between two ...
2
votes
1answer
123 views

ST_Union based on attribute

I have a road network of center lines of MultiLinestrings.They have nodes at every intersection. I try to understand how I can merge roads together that have the same category as attribute (There are ...
3
votes
2answers
404 views

Column 'SHAPE' cannot be null in mysql database even if the query string is correct

I am trying to write an POLYGON into an column named SHAPE which is a geometry type. And created query which looks $sql = "INSERT INTO rokka(zone,district,location,area,SHAPE) VALUES ('$zone','$...
0
votes
1answer
138 views

What command to use in PostGIS to get same result as ArcGIS?

I have two shapefiles and i'm trying to do simple spatial analysis. When I want to know which polygon belongs to other polygon in other shapefile I always use select by location and in Spatial ...
0
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0answers
135 views

SQL query on field in Oracle does not return the same values that are seen in ArcMap/ArcCatalog

This is a very bizarre issue and I am at a loss as to why this is happening. A user running queries in SQL Developer brought this to our attention, and when we tried it we ran into the same problem: ...
1
vote
1answer
461 views

nearest neighbor query in SpatiaLite

I am trying to find the nearest line to each point in a layer, and I have over 1 million points. I want to be able to associated the closest unique line ID with the point unique IDs. I have tried to ...
0
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1answer
106 views

I'm not able to add SQL file to postgresql database

I started with basics and did these steps: createdb -U postgres -E UTF8 -O Peete gis -OK createlang -U postgres plpgsql gis (was already installed) -OK psql -U postgres -d gis -f PATH_TO_POSTGRES/...
3
votes
2answers
432 views

Trouble using ST_Difference to remove overlapping features

I am trying to use ST_Difference to create a set of polygons (processing.trimmedparcelsnew) that do not contain any of the area covered by another set of polygons (test.single_geometry_1) using ...
1
vote
1answer
123 views

CartoDB (PostGIS) near function (distance) points to polygons

I have a CartoDB map here: Link: https://dms2203.cartodb.com/viz/78db6c02-3148-11e5-a42f-0e018d66dc29/public_map I'm trying to find the distance of the points to the polygon. If the points are ...
0
votes
2answers
104 views

Using ST_LINE_INTERPOLATE_POINT in OGR and python

I'm interested in finding the midpoint on a linestring using OGR and python. This can be a line with more segments. Could I use the ST_LINE_INTERPOLATE_POINT in python using the ExecuteSQL() method? ...
2
votes
2answers
43 views

CartoDB latlon change to lonlat

I have this script I am trying to use to search for a value within a CartoDB table. I can't seem to figure out how to reverse the order of the lat & long coordinates so they appear as lonlat... ...
0
votes
1answer
125 views

Spatial query ST_CONTAINS returns empty result

I want to create a database view in Postgres/PostGIS which returns a subset of the points stored in another table called locations. The subset is defined by an area stored in yet another table called ...
1
vote
2answers
207 views

Cartodb - Error: sql is read-only in NamedMaps

My map is not a named map. Map privacy is set to only people with the link. Why I I getting this error when trying to do queries? Has anyone else run into this?
2
votes
1answer
145 views

Joining data of two different datasets from varying distances and integrating into one dataset in ArcGIS

I have a pointfile of some 200 electrical boxes throughout the county. While the electrical boxes are "mapped", they are done so by using township range section data, so there actual location is not ...
1
vote
1answer
44 views

Table join not displaying in createLayer function in cartodb.js

I am trying to build on the cartodb tutorial to develop a map of fibre networks in Africa. The example works fine when my SQL select is very simple i.e. var layerSource = { ...
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0answers
120 views

ArcGIS ModelBuilder Iterate tables: Make Query/SQL expression

I'm new to ArcGIS and was wondering if someone could help me with my SQL expression. Essentially, I'm using ModelBuilder to iterate over several tables and Make Query table for each one. I'm trying ...
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0answers
65 views

ogr2ogr: export intersected gml using shapefile

I'm trying to do the same as the ogr2ogr example given by http://gis.stackexchange.com/a/119404/6458 The difference is that my inputs are a GML and a shapefile. Export.shp should only contain the ...
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0answers
34 views

Combining Datasets from multiple scraped data CSV files using FME [duplicate]

My main goal is to collect information of US Golf courses located in the United States and geocode them to create a meaningful map. I was able to scrape from four sites in which I created 4 CSV ...
1
vote
2answers
78 views

Inputting integer values into SQL statement using ArcPy?

I am defining a function for use in a ArcGIS tool that will verify attributes, catch errors, and obtain user input to rectify those error. I want the tool to select and zoom to the segment that is ...
0
votes
1answer
149 views

Referencing CSV file in Select By Attributes SQL query?

I have 2 databases: Database 1: Point Shapefile with adress and APN (parcel numbers) as attributes. (Huge number of points, addresses for an entire metropolitan area). Database 2: CSV file with a ...
1
vote
1answer
111 views

Error #1064 from MySQL searching database for results near lat/long

I'm trying to run a SQL query to search for a term and a users location. I need help to search my database for locations near a user with the description of 'X'. The users location (lat, long) is ...
2
votes
1answer
437 views

How to make SQL definition query in ArcGIS to show only unique values (hide duplicates)?

I have a vector file with field of type LONG. Some values of this field are duplicates. Is it possible to make such SQL definition query in ArcGIS 10.3 to show only unique values without duplicates? ...
1
vote
1answer
50 views

Dynamic XY to line with SQL

using arcmap 10.3 Trying to create a 'live' draw of lines between two coordinate points. So far I have been able to easily create the lines into a new shapefile using the XY to Line tool however I ...
2
votes
0answers
42 views

Aligning Points in Decimal Degrees

Running ArcMap 10.3 I am displaying a layer of manholes from a table coming from SQL. The XYs are in decimal degrees however they are displaying no where near my other layers (NYC PLUTO). I have ...
0
votes
1answer
43 views

Failure of non existant SQL statement after executing statements from a file with ArcSDESQLExecute object

As you see in my code I iterate and execute all the sql statements in an sql file using ArcSDESQLExecute object. It does work but when all statements have been executed the object returns 'None' (...