The process of connecting two or more datasets based on a common attribute or spatial location.

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4
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1answer
156 views

QGIS 2.0.1 linking table issue, MSSQL 2008 database

I'm trying to link tables in QGIS 2.0.1 and MSSQL 2008 database. I can link them but when I try to open the attribute table QGIS throws an error and shuts down creating a *.dmp file. I saw that ...
3
votes
1answer
67 views

Coloring of features in ArcMap 10.1 changes randomly while zooming

I am using the sovereign states shapefile (ne_110m_admin_0_countries.zip) from http://www.naturalearthdata.com/ and joined the attributes with a spreadsheet file that codes many (but not all) country ...
2
votes
1answer
54 views

ArcMap many-to-many join

I'm working in ArcMap 10 and can move around in R, though am not an expert. I have a shp file and an xlsx file. The shp file is 20,221 rows and includes a field GID (grid ID) which is not unique ...
2
votes
1answer
94 views

Update Attribute based on spatial location

I want to spatially (Spatial Join) update few fields, not all, from another feature class. Is there any way to select and update few fields instead of all the fields from the other layer and ...
1
vote
1answer
41 views

How to specify imprecise join criteria in ArcGIS for Desktop?

I need to join data from an Excel Spreadsheet to a Point feature class. Namely, matching up Addresses from one piece of data to another, and then appending the rest of the data once the addresses ...
1
vote
1answer
249 views

query / filter on attribute tables with external tables joined

i tried to do some queries on joiend table fields ... i've got/found some answers concerning version 1.8 - which result in "use select + export to create a combined dataset" so i just did some tests ...
1
vote
1answer
60 views

Problem with QGIS 2.2 joins between shp and csv

Didn't see question like this asked, so... I've joined csv to shp file and everythings seems ok. I've modified attribute form so that fields from joined csv appears in there. So far so good- it's ...
0
votes
1answer
282 views

Join and Calculate vb.net

Im trying to join an excel table to a shapefile and then calculating those fields using vb.net. The code I have written has no errors, but won't work when I try it in ArcGIS 10.1 and I'm out of ideas. ...
3
votes
0answers
166 views

Startup python script to re-join layers

In QGIS 2.2, there is a bug which involves using the JOINS properties on a vector layer (that is already being joined with several other vector layers) whereby the attributes are not fully loaded. ...
3
votes
0answers
64 views

Can you use wildcards for column headers in Field Calculator?

I know you can use wildcards for fields like so (in the Field Calculator): case when "column" ILIKE '%example%' then 1 else 0 end Can you do something similar for the column headers themselves? I ...
3
votes
0answers
14 views

List Joined tables

I've a question about arcpy List* modules. I have a quite large amount of data on SDE Server. Earlier I made a list of the feature classes , and tables in the mxd-s placed there using da.Walk and ...
3
votes
0answers
46 views

Adjacent DEM files have narrow triangular gaps when joined

Newbie here. I've downloaded several DEM files from GeoCommunity which correspond to adjacent regions. When I join them together to form a larger relief map there are triangular 'gaps' on all four ...
3
votes
0answers
764 views

How to join data from a CSV to a shapefile using QGIS

I'm new to GIS and new to StackedExchange. I need help joining a CSV of Accessibility data to a LSOA shapefile in QGIS. The process explained here does not work for me and I don't know why. The ...
2
votes
0answers
137 views

Joining nearest neighbor small polygons using R

The figure shows a plot of numerous polygons (zoom in) made from a raster file by require(sp) require(raster) pol100 <- rasterToPolygons(r, fun=function(x){x==1}, dissolve=FALSE) There polygon ...
2
votes
0answers
107 views

QGIS - How to avoid -2147483648 value from imported CSV?

I am attempting to join a spreadsheet containing all the CIA Factbook Country Comparison Data (many columns) to the existing Natural Earth world countries shapefile. I followd the tutorial here, but ...
2
votes
0answers
243 views

PyQGIS joining a dbf to a shapefile

I am trying to join a shp and dbf file using the PyQGIS API. The code I'll use is below: from PyQt4.QtCore import * vector1 = QgsVectorLayer("path to dbf file", "test1", "ogr") id1 = vector1.id() ...
2
votes
0answers
941 views

QGIS: After performing a table join, all the fields are “NULL”

Within QGIS, I joined .dbf table containing population data to a shapefile of Census tracts. The join field is called GISJOIN in both the target table and the shapefile's table, and this attribute ...
2
votes
0answers
72 views

How to join two fields after calculating?

I have been working with two layers and I am trying to join them and turn them into a raster data. The first layer is a watershed layer which I have assigned each shed a location from the center point ...
2
votes
0answers
311 views

ArcObjects : How to change layers connection properties without losing joins

I'm using arcObjects 9.2.6 java librairies to change connection/path properties within a java prog. This prog aims to change path and connection properties for all layers of an mxd file. It works well ...
1
vote
0answers
50 views

Can Virtual Fields be used for a rendering style?

In QGIS 2.6, creating a virtual field for a layer and adding up 2 integer fields work fine. I get the correct results and I can use that field for styling. However, when doing a Joins with 2 layers ...
1
vote
0answers
26 views

Time not configuring correctly?

I'm trying to match data in a textfile that contains time, value, and fips code to the cntyidfp part of a map of US counties. However, even though I am able to match the two sets of data together, ...
1
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0answers
39 views

Join does not return matching records after 1001 records have been successfully joined

I'm working on a process that joins a feature layer to another feature class. The code is as follows: arcpy.MakeFeatureLayer_management ("New_FC", "newFC_layer") ...
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0answers
49 views

Categorized style hiding map

I am having an issue with the style properties of my map. I imported the US Zip Code Tabulation Area map from a government website, and in a separate excel file I have a list of people connected to ...
1
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0answers
58 views

Join operation does not return any matching records if the join table contains “coded value domains”

I have a point feature class and performed a join operation against a destination table with two fields containing coded value domains defined in the same file geodatabase. Another field called ...
1
vote
0answers
94 views

Create a non spatial index on an attribute in QGIS before joining two layers

I’m using QGIS 2.0.1 on Windows 7. I’m trying to join a .dbf which contains no spatial data to a shape file containing spatial data. Ideally I’d like to create an attribute index on the join field in ...
1
vote
0answers
49 views

How to create a 1:n join and concatenate text attributes?

I have 2 polygon layers A and B. I would like to join the attributes from B into A for all the polygons from B that intersect A and for text attributes, i would like them concatenate. But apparently ...
1
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0answers
59 views

Record Set (Recordset) for Join in ModelBuilder

I am trying to use a recordset to develop a Table View to use to join to a feature layer in model builder. I can export the table view directly with the user input included. However, when I attempt to ...
1
vote
0answers
71 views

How to repair a data source with joins to Excel?

I have a set of MXD files, that do not use relative paths, and related data that have been copied to a new computer. Normally it's not a big problem to repair the data sources in the project, but in ...
1
vote
0answers
63 views

Joining Data in ArcMap Errors

Has anybody encountered issues with ArcMap when joining data? Specifically, my rows join, however, depending on how ArcMap is feeling, I might or might not receive my data in the form of quantities. ...
1
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0answers
223 views

Quering a ArcSDE featureclass attribute table after joining

I am trying to query a ArcSDE Feature Class after joining using Iqueryfilter I have two SDE feature classes. 1) Subdivisions : which has details of subdivision and districts (parent) 2) ...
1
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0answers
110 views

Join .csv file and .shp of georeferenced points

I have georeferenced a map and saved a selection of some points on the map. These points are cities of departure and arrival and I want to join the .shp with a and excel .csv with the information of ...
1
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0answers
70 views

Join field from table to a raster layer

I'm trying to join a field in a table to a raster layer. I'm using the tool 'Join Field'. The table is in a excel sheet, but have been imported to a file geodatabase. The table has an ObjectID field ...
1
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0answers
307 views

In ArcGis 10, spatial join of a hot street value to a fishnet cell is counting multiple values for same street segment

So, I am working on a fishnet, so that we can attribute multiple values to points within different cells (i.e., ranking light poles as optimum for traffic cameras based on the number of speeding ...
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0answers
427 views

Should Delete Field work in ModelBuilder while there is a Join present that appears unrelated?

I am having an issue with a very simple Model, both in ArcGIS 9.3 and ArcGIS 10.0. The part of the Model that is causing trouble is shown below, along with ModelBuilder's error message (in ArcGIS ...
0
votes
0answers
32 views

Selected features with a join are identified improperly from a service

We couldn’t figure out why a service fails to provide correct identification for the selected feature. However, the scenarios below may highlight the issue: In the “UrbanMasterPlans_WithJoin.mxd” ...
0
votes
0answers
4 views

add points when joining two datasets together in ArcGIS

I am trying to join an excel file with a shapefile based on a zipcode. My problem is that I have multiple persons with the same zip code, but it joins only 1 of those persons. Is it possible to ...
0
votes
0answers
40 views

How to access data from a table that has been related?

I have a data driven page table that I am trying to associate with route line data. The object of this exercise is to print the associated data on the data driven page AS or LIKE a data driven page ...
0
votes
0answers
30 views

how to join 1second GPS data with dGPS using much shorter time interval?

for one of our measurements we rented a dGPS with a portable "rover". I have now our measurements from our device which also contain data from built-in GPS (1 second sampling rate) + also the dGPS ...
0
votes
0answers
39 views

How can I correctly delete a join from featurelayer using arcobjects?

If I create a join using ArcMap dialog definition query can be changed if joined layer contains a definition query. For example, layer A has definition query "A", layer B has definition query "B", ...
0
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0answers
39 views

Broken links after joining an .accdb with a .csv in ArcGIS 10.1

I have two sets of data: A "master" file of coordinates that has one row for each location, saved as a .csv file A table with information for each location but no coordinates, saved in an Access ...
0
votes
0answers
59 views

Join Standalone Tables from ArcGIS Server in Javascript API

I am trying to find a way to execute the equivalent of the following query with the ArcGIS JavaScript API (I made field and table names generic): SELECT a.field1, a.field2 FROM table1 a, table2 b ...
0
votes
0answers
74 views

Batch join non-spatial csv to shape files

I have 173 point shape files from soil testing and 173 non spatial csv files with lab ressults (one csv for each shape file) that need joining. The files are located in a library with folders named ...
0
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0answers
68 views

In ArcGIS, how to automatically recalculate a calculation if I modify the Excel data source?

There's a database with buildings. Each of them has a few parameters, for example building type codes. In a distinct table each building type codes has 4 attributes. During the Join, the datas will ...
0
votes
0answers
71 views

How to create a many to one spatial join?

I have a polygon feature class of territories and a point feature class of trees. The points have many attributes, one of them is the tree species name. I need to get the list of all the tree species ...
0
votes
0answers
62 views

export spatial information from table that is joined to a shapefile in QGIS 2.0

I have a table with data values per district for different years. The table looks like this: district name / year / value. The same district is thus present in the data multiple times for different ...
0
votes
0answers
166 views

Best way to join and handle multiple attributes related to the same feature

this is not going to be a question, I'm just trying to find some advice. Suppose I have a point shape file (for example just 2 point, actually I have many more points) representing water control ...
0
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0answers
39 views

multiple data atach with shape file in GIS-regarding

I have different sampling data of one location that is a point so, multiple data how to join with single point. after joining i need quries by select attribute in GIS.
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votes
0answers
167 views

MS Access join table values, not recognized by ArcGIS symbology

I joined a MS Access database table to a GIS file. When I try to use symbology (categories) to represent a yes/no value which is in the table file (0/-1) it does not recognize it as a value.
0
votes
0answers
451 views

How to do a spatial join if QGIS 1.8 keeps crashing?

I am trying to perform a simple spatial join (adding polygon data to points) in QGIS 1.8: target vector: points join vector: polygons take attributes of first located feature keep all records ...
0
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0answers
245 views

How to Query Parks in GeoNames and Combine it With a Polygon Layer?

I run a hiking site and would like to get parks where you can at least have a nice walk. That means they should not be playgrounds, stadiums, and probably be bigger than 3 square city blocks at least. ...