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

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199 views

Invalid SQL-Statement error when querying file-geodatabase table date field with arcobjects

I want to query a DateTime Field in a table in a file-geodatabase and I keep on getting the error "invalid sql statement" (Error Code: -2147220985) while that sql statement does not give me an error ...
2
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1answer
133 views

Cannot load postgis layer from sql string in pyqgis

I'm trying to load a layer using the following code in qgis python console: sql = "(select the_geom, ID from mytable)" uri = QgsDataSourceURI() ...
3
votes
1answer
741 views

SQL query to have a complete geojson feature from PostGIS

I would like to get a geojson feature with properties from PostGIS. I have found an example to have a feature collection but I can't make it works for just a feature. so far I tryed to modify the ...
0
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1answer
124 views

geoserver fails to start with jdbcconfig community module

I have installed the geoserver JDBC config community module, but now geoserver fails to start. I have set the properties to connect to an oracle database like this: #Default GeoServer JDBC config ...
3
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2answers
82 views

Buffer multiple roads to find points within and compare?

What I am trying to do is buffer a main st and a side street and get all of the points that intersect that buffer, however they need to be mutually exclusive. In the example below, my results would ...
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0answers
104 views

Making Map with Color Ramp Using SQL Database Intergration?

This could be a trivial question, but I've been kind of stuck on it for awhile. I'm trying to construct multiple maps that reflect aggregated data showing overall risk by county in a SQL Database ...
2
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1answer
99 views

Spatial joining syntax

A standard PostGIS point-in-polygon query might look like this. (example tutorial) SELECT p.*,b.polyname FROM points p, shapes s WHERE ST_Within(p.the_geom,s.the_geom) Imagine this was not a ...
5
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2answers
307 views

Selecting maximum Value based on other field using ArcMap?

I have problems with a SQL query. The table looks like this, it is a point feature class both in postgres and file geodatabase, I am working in ArcMap. name: elev_p HEIGHT AREAid 100 1 200 1 ...
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1answer
65 views

Geoserver SQL Parameter View

I'm trying to use Geoserver Parameter SQL views, but I'm having trouble getting geoserver to recognize the parameters (and I'm not able to follow the documentation - it's not very clear to me). Here's ...
2
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2answers
61 views

PostGIS SQL NOT EXISTS Statements? [closed]

I'm trying to query my PostGIS database for ID of people who did X but did not do Y. I've attempted the query below, but it does not return any results. I'm very new to SQL so I may be overlooking ...
2
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1answer
99 views

Error at or near “select” PostGIS

I'm using node.js to connect to a PostGIS database to check if an input feature significantly intersects with an existing feature. The error seems to be with the nested SELECT statement - can anyone ...
2
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1answer
72 views

How to find a nearest line to a point

I have a table with many points that need to be associated with street segments to calculate an average value. should I do a relationship for all points to a street segment that is closest. I have ...
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0answers
17 views

Creating weighted list using Select tool in ModelBuilder?

I've done a raster to point conversion and have a column of the grid codes. Let's say it is composed of 10 numbers [9,5,7,1,7,3,7,2,8,1]. Right now I am doing a selection on those numbers based on ...
2
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2answers
163 views

Using MAX in SQL Expression of ArcGIS ModelBuilder?

I am trying to use a SQL expression in order to select values that are >= 25% of its max value in that column. For instance, VALUE >= MAX(VALUE)*0.25, and those will ultimately be the selected ...
1
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1answer
43 views

Alternative to Copy Features in ModelBuilder to display a result [closed]

I have created a model that takes in a raster, converts it to a point shapefile, then extracts a set of points based on location, then further selects a set of points based on a SQL expression. I ...
3
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0answers
161 views

How to export data from sql server into shapefile in the decimal format in QGIS 2.4?

The last couple of days, I have been working on exporting data from SQL to a shapefile in QGIS 2.4. While converting into a shapefile, the data type changes automatically from Float to Integer in the ...
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1answer
65 views

Controlling page count increment of Data Driven Pages using ArcPy?

I was wondering if there is a way to add coding to Data Driven Pages with python. I would like to be able to take the "Data Driven Page with Count" and increment the count by one or in some cases ...
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0answers
74 views

How can I make PROC GMAP (SAS) run is less time?

I am trying to create a map of Australia, by Local Government Area (LGA), with shaded regions displaying the population for each LGA. The shape file can be downloaded from the Australian Bureau of ...
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1answer
345 views

Select By Attribute: Between Two Numbers [closed]

I am trying to select house numbers that are between 200 and 499. I've been using: "HOUSE_" >= '200' AND "HOUSE_" <= '499' ... and it's coming up with almost everything else. The numbers it ...
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0answers
99 views

How to export data from sql database in the decimal format in QGIS?

Currently I am working with QGIS and fetching data from SQL server and export it in the format of shapefile in QGIS. While importing the data from sql server attribute table showing data with ...
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0answers
66 views

PostGIS Spatial query taking a very long time

I'm trying to return a count of crimes (points) that occur in each police grid (polygons), as well as the geometry data, but the query takes ~22 seconds. This seems oddly high and will be problematic ...
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1answer
47 views

CartoDB/SQL Console?

Lacking much programming experience, I've spent a lot of time familiarizing myself with HTML, CSS, and SQL over the past couple of days so that I could make a layer selector for a CartoDB ...
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0answers
53 views

Hindi character support in MS SQL 2012

I have spatial MS SQL 2012 and i need to store hindi characters in a column. I tried using nvarchar datatype but I'm getting only "Question marks(????)". Is it possible to store non-english ...
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1answer
76 views

Remove inner polygons postgis

I'm trying to remove inner polygons with postgis. I've created a routine, that resumes in: From a polygon table, with a unique id: -Create a linestring table from polygon -Import to postgis -Get the ...
5
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1answer
377 views

How to use %value% (from For iterator) in SQL expression of Calculate Field in ModelBuilder?

I have a shapefile with data of fish specimens and the coordinates where they were tagged for research purposes. One of the fields in the attribute table of these shapefiles is the fish length in ...
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1answer
46 views

Setting the Geometry with sql query

I am trying to merge data from a U.S. states shapefile with data on each state. I used this SQL query which is supposed to work: SELECT * FROM child_poverty_by_state UPDATE child_poverty_by_state ...
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35 views

How to get sql error from postgis when a plugin fail to load vector layer?

I am writing a plugin for qgis that load a sql layer from postgis database. I am disappointed that when the layer fails to load i can't find a way to get the sql error message from database server. ...
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0answers
93 views

connecting cartodb to existing mysql database

I'm trying to create a simple heat map based on longitudinal and latitudinal map coordinates that can be transferred from a database on mysql that I've created. I read that cartodb can be connected to ...
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1answer
128 views

Postgis create polygon extent/convex hull from spatial table

Please help, I have a polygon layer representing building footprints. I want to create new view in postgis that will contain rectangle representing bounding box and also another view that will have ...
7
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3answers
4k views

Bounding box for PostGIS table

Is there an easy way to get the bounding box for an entire table in PostGIS? Thanks
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0answers
16 views

Uisng Directed force graphic to connect terminals in CartoDB?

I am starting using SQL for my internship, we are creating a map for terminals (points representating a port, train station or logistic centre) and what I would like to do is use the Directed force ...
0
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1answer
45 views

Arcpad 10…using sql with VBScript

I am trying to get a count of related records (Tableform) in order to validate Editform entry (using VBS). Any help getting myCount? I Know there are some syntax issues here, but is this even ...
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2answers
118 views

STCentroid Question

Hi I'm not sure if I should ask in here or another SE site, however I was wondering if anyone knew if it is possible to configure the results from a STCentroid select statement? If I run a select ...
2
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1answer
335 views

Query to select MIN and MAX values by groups

In ArcMap 10 i'm working in a Personal Geodatabase where the points (see screenshot below) represent the number of each house in the street. Each point has an ObjectID. This ObjectID is an unique ...
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30 views

time complexity of selected algorithm - SQL

I use PostGIS - SQL 1) I need know time complexity of algorithm which in I use these functions: ST_Equals, ST_Overlaps, ST_Distance_Spheroid and ST_Dwithin Is a time complexity diferent when I use ...
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1answer
483 views

PostgreSQL/PostGIS: create spatial view

I have a polygon layer and a point layer. 1) I wrote a spatial query to count how many points fall in each polygon: SELECT polR.codeR, count(pntAZ.geom) as tot_pntAZ FROM boundaryR as polR LEFT ...
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9answers
14k views

How to connect to PostGIS database from ArcMap?

How can I connect to a PostGIS database from ArcMap? Solutions for ArcGIS 9.3, 10.0 and later are acceptable. Ideally, I would like to be able to perform spatially enabled queries and receive the ...
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1answer
242 views

How to connect to ArcSDE for using the ArcObjects Erase tool in C#?

I want to make use of geoprocessing via .NET ArcObjects, in this case of the "Erase" tool. This is easy once dealing with a local gdb file what I did for feasibility study. The issue occurs when I ...
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0answers
45 views

Postgresql (soln would be basic SQL I think): ORDER by distance to a point and return those distances in array pairs w/ the full records

so I know there have been some questions asked about how to calculate distance using postgis and how to order results by their distance from a respective point. I'm not very talented at SQL (at all) ...
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1answer
695 views

Subquery a list in select layer by attribute management using python

I am new to python and having trouble with my script. I want only the records from the COMTRS field (of the pur_dbf_view) that match values from the ComtrsList to be selected; however, I am getting ...
2
votes
2answers
167 views

Problem with SPIT (error while importing layers to POSTGIS)

I was attempting to import a polyline roads layer into postgis, using both SPIT in QGIS 1.7 and postGIS GUI for this purpose. I have received errors through both processes as described here: SPIT ...
7
votes
3answers
3k views

Label points at regular intervals using ArcGIS for Desktop?

I'm working with lines on roads represented by a large number of sequencial points. Since labeling all of them would make the points impossible to identify, I'd like to know if there is a way to label ...
2
votes
2answers
705 views

How to get the data type of each column from a postgis table

I need to get the column data types of all columns in a table, including the geometry types. What I wanted to know is if there is a function or SQL that gives something like this: column_name | ...
0
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1answer
37 views

I need to test a condition within the sql in postgis.

I need to test a condition within the sql in postgis. My sql: SELECT (zoneamento3_32722.zt3), logradouros32722."NMIDEABR", logradouros32722."OBJECTID", ...
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2answers
98 views

How to join data in postgis tables to form layer with subset of attributes

In QGIS I am trying to join data from two postgis tables. I can not figure out how to do this at sql because add layer tools seem to allow one to select just one table to filter on. Instead I ...
2
votes
3answers
508 views

SQL expression error for Select Layer By Attribute

arcpy.MakeFeatureLayer_management("N05-12_Station2_JGD.shp","station_12") year=2012 arcpy.SelectLayerByAttribute_management("station_12","#",'"closing">=%d AND "opening"<=%d' % year) ...
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1answer
41 views

managing postgresql database table using the pgadminIII sql tool

i have created a database using postgresql 9.1 and a table containing parcel information for a town council database on a windows 7 OS. i created the geometry column using the SELECT ...
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1answer
117 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 ...
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2answers
182 views

Help needed with incorporating SQL query into ArcGIS python script

I'm new to python and have been trying to learn how to use it within ArcGIS. I have primarily been using the free Penn State courseware available here - http://open.ems.psu.edu/courseware I have ...
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1answer
87 views

MYSQL 5.6 Cluster / chain points by distance to any other point without millions of calculations?

I have a table of approx 10,000 - 20,000 dynamic points across the globe stored as lon/lat points. I want to cluster any point within (roughly) 3km of any other point into one point (and return the ...