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

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Negative numeric values in Geoserver sql view params

I want make some query based in lon/lat values of a specific place. A simple example is this: SELECT C.tipo, C.geom FROM climas AS C WHERE ST_Contains(ST_SetSRID(C.geom, 4326), ST_SetSRID(ST_Point(%x%...
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5answers
4k views

ExecutING SQL script in ArcGIS field calculator?

I am trying to transfer over row data from a table to columns in a shapefile table. There is a common "SA" variable between the two (i.e. the study area number) but there is more than one land use ...
1
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1answer
77 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
1k views

Editing tables using SQL in ArcMap [duplicate]

We've recently started working with ArcMap, having used MapInfo previously. I've created a shapefile in ArcCatalog and want to update some columns using SQL. In MapInfo I'd write the following command ...
4
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3answers
2k views

Publish SQL Views from Postgres/Postgis to Geoserver

I've trying and reading how to publish a Postgres/Postgis View in Geoserver. I know that I can create an SQL View in Geoserver, but I'd like to define the View in Postgres, not in Geoserver. Does ...
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2answers
45 views

Viewing results of ST_Difference

I've got an ST_Difference query runnning error free in PostGIS, and in PGAdmin I can see the output table but it's not viewable in QGIS - The table name appears in DB Manager but says "There is no ...
2
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0answers
37 views

QGIS - WHERE SQL within a processing.runalg statement for v.surf.rst in python console

I'm creating lots of raster files with grass:v.surf.rst so rather than using the graphical interface I wanted to use the python console (and potentially put in in a script at some point). However ...
11
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3answers
4k views

Intersecting a raster with a polygon using PostGIS - artefact error

I'm using PostGIS2.0 to do some raster/polygon intersections. I'm having difficulty understanding which operation I should use, and what the quickest way of performing this is. My problem is as ...
1
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1answer
86 views

How to make a SQL query that would sum multiple records in ArcGIS?

I've got a large file geodatabase that contains a polyline feature class of water-pipes. The feature class have many fields, but the ones that I'm interested in is that of the water-pipe's Length and ...
4
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3answers
797 views

How to select a number of rows based on current sort order

I would like to be able to select a certain number of rows from my attribute table based on their ordering and not their attributes. For example, if I sort by ObjectID, I then want to select the top ...
6
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4answers
2k 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 ...
1
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1answer
26 views

Polygons created for holes after running ST_Collect

I ran an ST_Collect query on a polygon dataset using ogr2gor -dialect sqlite -sql SELECT ST_Collect(geometry),id FROM wl_test GROUP BY id The result is a multipart polygon, which is what I want, ...
0
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1answer
35 views

Using MapInfo SQL?

I am trying to create a map of U.S. counties that shows migration patterns. I have a table of all US counties and a table that has migration information. Some counties do not have migration, ...
2
votes
1answer
193 views

How to use ST_DWithin to query features from one table within a distance of a specific feature or features in another table

I'm pretty new with PostGIS. I have a parcel layer and a census block layer in a postgres database, and I would like to be able to query out all census blocks within a specified distance of a specific ...
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0answers
84 views

PHP, PostGIS & Geojson

I'm using Lumen to connect to postgis and I want to execute this query: WITH query AS (SELECT ST_GeomFromGeoJSON('{"type": "Polygon","coordinates": [[[366063.228612569917459, 623109.765295544289984],[...
2
votes
1answer
42 views

GRASS PyWPS Create a new vector map from user selected polygon

My goal is to select a specific polygon in which the user clicked and make a new vector map that contains only the selected polygon. I see two ways: Convert XY coordinate from literal input to a ...
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0answers
44 views

Inserting search box using dataset column using CartoDB?

I have got some problems to add a search box that can runs searching points from a column of my dataset. I've read this article: How can I link the search box to a dataset column in CartoDB? but I'...
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2answers
193 views

APDM - error exporting database from Oracle

I have a fairly large database on a slow network and I am using a third party tool to update data which calculates other fields and so on. I have a guid string with an empty box (weird glyph - seen ...
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0answers
10 views

Using predefined variables in whereclause? [duplicate]

Can't seem to figure out how to use variables for an SQL whereclause in python. e.g. want to select_analysis(layer, "new sel", field = attribute) with field and attribute being predefined by user ...
2
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1answer
98 views

Esri ArcSDE 10.3.1 Query Inspire Metadata from Oracle (11g) Enterprise GeoDB via SQL

As the title says - I want to create a query in Oracle SQL which will read all dates from the geoprocessing history which can be found using ArcCatalog to show the "Description"-tab from a feature. (...
2
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0answers
28 views

Filter features based on attribute percentage threshold [duplicate]

I have a layer (vector layer imported from a Shapefile) in QGIS 2.8.3 with a bunch of features with a single numerical attribute, 'level'. I would like to filter the features with a threshold that is ...
6
votes
2answers
1k views

Using integer variable in where clause of ArcPy script?

I'm trying to include an integer variable in the SQL where-clause of a tool like this (ArcGIS 10 Python script): newR = ExtractByAttributes(inR, '"IntField">=2508') where inR is an integer ...
3
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2answers
217 views

subquery in select by attribute in Arcgis

I have a table with several fields. field A contains the same kind of values as does field B. I tried to select all points where the value in field A does not exist in anywhere field B using query ...
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2answers
54 views

PostGIS insert failed without raising error

I'm learning PostGIS through a book "PostGIS in action". The SQL code written in the book has a lot of issues and I've figured most of them except this one: Copied from the book chapter: CREATE ...
2
votes
2answers
570 views

ArcObjects table views or SQLite3 in Python?

Given a larger csv (1000+ points) with attributes, I need to do both attribute 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
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1answer
28 views

Querying two Separate Columns in ArcPy SQL {where clause}? [duplicate]

Using ArcPy I'm Trying to Set up a Where Clause in my "FeatureClassToFeatureClass_conversion" This {Where Clause} needs to Query Two Columns in the data: FEATURE = 'ENVIRONMENT' and TEMPERATURE &...
1
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1answer
38 views

Aggregating taxi data to census block data based on number of taxi trips?

I am doing a study on taxi demand using block level census data and taxi drop off and pick data in the form of Latitude and Longitude around the united states. I am hoping to create a map that shows ...
1
vote
1answer
47 views

Change field names in SQL Server Management Studio

I am building a spatial view using SQL Server Management Studio 2014. One of the tables I am using to build this view has field names that are not compatible with esri; the field names have slashes, ...
0
votes
1answer
78 views

Generating pivot table in PostgreSQL that ties cities to counties using QGIS (or PostGIS)?

I have a cities shapefile and a counties shapefile. I have the counties shapefile imported to a PostgreSQL table. I haven't transferred my cities to PostgreSQL yet, but the issue I really want to ...
1
vote
1answer
37 views

Sum and groupby several conditions

I have a road network where each link is part of a reference number. I am trying to sum up the length of roads per reference number and status. My nested query fails and just sum the total length of ...
1
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0answers
57 views

refine nearest_node with radius-distance ( ST_Distance, ST_DWithin )

i am a hobby-IT-person and currently stuck with some simple problem, maybe somebody can help me: This is my working POSTGIS-function, source by underdark: ALTER TABLE distance_graz ADD COLUMN ...
1
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1answer
144 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, ...
4
votes
2answers
191 views

How to build QgsExpressions in python?

How can I build a feature request expression using variable inside expression? For example values = [1, 2, 3] for j in range( y ): it = vl.getFeatures( QgsFeatureRequest().setFilterExpression ( u'"...
2
votes
3answers
203 views

Find point close to points from postgis table

I have a postgis point table with a large list of cities. I need to find duplicates in it, but only if they are 10km close each other, which means that is the same city. For example, I have 5 points ...
1
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0answers
29 views

How would I build the syntax inside a request in the case I wanted to multiply 2 variables?

I would like add something to my previous question (here: How to build QgsExpressions in python?) How would I build the syntax inside this request in the case I wanted field_name to be also a ...
1
vote
3answers
508 views

How do I find points that are NOT within a list of polygons using MS SQL?

I have a table of points, and and a table of polygons. I have managed to build queries (MS SQL) to get the containing polygon for a given point, as well as listing all the points within a specified ...
0
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0answers
34 views

Number of rows returned via `shp2pgsql` for a given shapefile

With the shp2pgsql tool, I see it converts a shapefile into a SQL statement. Upon closer examination, does the SQL generated ALWAYS contains 1 insert statement for 1 row? Or are there instances where ...
2
votes
1answer
1k views

How to fetch polygons from PostGIS into a PHP array?

Currently I fetch polygons from a database table using ST_AsText(). The results are in text format, like this: POLYGON((84 104,212 48,321 122,243 179,275 238,131 240,84 104)) I am not quite sure if ...
0
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0answers
187 views

How to improve performance when using a large amount of data (big tables) in ArcGIS?

I'm working with the kinematic wave method to determine the runoff of a basin, I am using the explicit method for resolution (The Lax-Wendroff scheme): I'm working with script code in python (i'm ...
0
votes
1answer
48 views

Using ST_Extrude in Postgres 9.2, with PostGIS 2.2.0

I'm trying to use the function ST_Extrude() in Postgres 9.2. I enabled the PostGIS 2.2.0 extension and the PostGIS_SFCGAL extension (which carries the ST_Extrude function). I can see the function in ...
0
votes
1answer
34 views

How Update one table row with combare with the other polygon table using their geom in SQL Server

a-> points b -> Polygon i want to update city trow in table a with compare b of geom in SQL server this is the PostgreSQL Query update a set city=b.name from b where st_contains(b.the_geom, a....
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vote
1answer
66 views

Fastest way to transfer data from SQL to ArcMap?

I frequently have to use large tables and results from MS SQL in ArcMap and for that saving the data as .xls is one of the options. But when I add the data to arcmap, processes like joining and ...
0
votes
0answers
26 views

Dealing with NULL values in geodatabase using GDAL commands?

I have a geodatabase and I'd like to return a value for NULL. (When I look at my raster layer, there are a lot of zeroes which I am assuming is because of the NULL values) Is there a way to use the ...
1
vote
2answers
5k views

QGIS Select by Expression

A basic QGIS 2.2.0-Valmiera, Select By Expression - Field Calculator question. Introduction I am a geologist searching through a geological database (see attached figure). I have a shape file and ...
5
votes
0answers
331 views

Geoserver create SqlView Layer with Geoserver Manager

I would like to register a new sql view layer to geoserver through the rest api. I am using geoserver-manager. The registration is ok, the layer is working fine, except wms getFeatureInfo, which ...
1
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0answers
47 views

calculate positive difference by column common value with sql

I have one table with a few columns (and around 9000 rows) see below. Now I would like to calculate the positive difference from R where Xn has the same value and when Xn has the same value as Yn. ...
0
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1answer
183 views

SQL Make Table (from .mdb) to Point Shapefile

For my school assignment, I must compose an SQL statement which retrieves data from a database in .mdb format. I have no problem developing the SQL statement. It is a requirement that we have an ...
4
votes
1answer
1k views

Cartodb - SQL query of public visualization of a private table

The team at CartoDB have recently(last few days) made some useful updates that now allow public visualisation maps to reference data in private tables. The change has only been made in the last day ...
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1answer
606 views

How to import .csv file to CartoDB using SQL?

How to import .csv file to CartoDB using SQL, the data given below : POINT | TOP_dm | BOTTOM_dm | X_RD | Y_RD 35AP7600 | 4418 | 4368 | 262053 | 467223 35AP7601 | ...
4
votes
3answers
395 views

Filtering dataset using SQL or Python in ArcGIS Desktop?

Using ArcGIS Desktop 10.0 SP4. I have a large dataset of sites that needs to be filtered down to a usable size. There is an attribute for the site_ID and another one for the site_type. There are ...