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

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1answer
32 views

Joining CSV with shape file in QGIS

I am aware that this questions has been asked but I haven't really seen a satisfactory answer. I have loaded a csv file into QGIS. It has been imported properly, with the first column as a string ...
0
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0answers
16 views

Trouble joining Factfinder data with a block group

I am trying to create a join using census data to a block group and it is not working. I've done joins with census tracts and have had no problems at all, but using block groups is causing difficulty. ...
1
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1answer
23 views

Joining records from two tables that are not completely identical

I am trying to join a table and a shapefile using ArcGIS 10.2.1 and I need some help. The table has simple records similar to this one: OID1 WORK1 1 XW-02600 2 LL-02608 3 PM-02609 4 GL-02610 5 ...
1
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0answers
42 views

Reserved words when performing a join

This is my first assignment for a GIS class, so bear with me. I have voting data for the state of California, and one thing I need to do is join a precinct voting data layer with a counties layer. ...
1
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1answer
30 views

Joining attributes of two line feature classes (street network, ArcGIS)

I have two line feature classes for a street network. Their geometries are only crudely similar, while their attributes are different. I am trying to add the attributes of one feature class to the ...
1
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0answers
18 views

QGIS join attribute data to dxf file using EntityHandle as key field

I would like to joint attribute data (csv table or slt.) to a drawing (dxf file) imported to QGIS. Such imported data have an attribute EntityHandle which seem to me like an AutoCAD specific 'id'. I'...
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0answers
39 views

How to join a table based on postcodes in QGIS?

I have 2 datasets, a shapefile with postcode polygons and an excel table (.xls) with postcodes and building count. How to represent the excel table in the map? I know that in ArcGIS it's possible to ...
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1answer
40 views

How do I make a field of summarized zip codes, 1 for each, put it into my data table and join the table to shapefile without losing data?

I'm trying to use a field in my shapefile with summarized zip code data. I have a table of hospital admissions data and in this table there is a field of zip codes which are repeated multiple times. ...
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1answer
23 views

Error on join in ogr2ogr

I am doing an ogr2ogr process where i will be making a join between two tables, imported as shapefiles and .csv to join on a column with idential attributes. The code i've made so far looks like ...
3
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1answer
70 views

Attaching Excel sheet with different language font(hindi) to shapefile

When I try to join a excel sheet with Hindi font to a shp file, I get '?????' as a result in those cells which has Hindi font. (Before/Aft images attached) I tried changing the locale language to ...
2
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1answer
35 views

How to doing spatial join for several rasters

I have four rasters, each of 32 bits (single band), with the same cell size, the same number of rows and columns and identical extension. I need to make something like a "Spatial join", I mean, I need ...
0
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1answer
27 views

How can I combine together cells within the same raster in ArcGIS 10.2?

I have a raster displaying Land Cover data for the UK at a cell size of 25m. The cells are currently categorised as one of 24 different types of land cover. Some of these are irrelevant to me, and ...
4
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1answer
100 views

Join / merge lines that touch and intersect in QGIS

I have a large dataset consisting of lines/polylines where I would like to join/merge the lines that touch / intersect. Each line has an individual ID and there are no common attributes I can use for ...
1
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0answers
44 views

Arcpy: Delete rows from joined table

I would like to delete all rows which are joined to a layer from a csv table. Only the joined records which match (keep only matching records) should be deleted. After the records are deleted, the ...
2
votes
1answer
62 views

Arcpy Join field options

I am looping through Municipalities and clipping a layer called AllZones containing Multiple Facility (FACID) with multiple chemicals per Facility (CID). 1 to many relationship FacilityID, ...
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25 views

QGIS: Join by Location: Option to retain all attributes of spatially related objects of my join layer [duplicate]

I am facing the problem that I want to join the attributes from one specific column of ALL intersecting features from my join layer to my target layer in case of an intersection (1:n relationship) ...
4
votes
1answer
65 views

How to use joinFieldNamesSubset from QgsVectorJoinInfo class

I have written a small python plugin to refresh a join on a point layer in QGIS. point_layer=None for lyr1 in QgsMapLayerRegistry.instance().mapLayers().values(): if lyr1.name() == "point_layer": ...
1
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1answer
36 views

Arcpy Freezing on Field Calculation

I am trying to populate a grid with the number of features in each grid cell. I've gotten this script to work with a subset of the data, but when I try to run it on the full (52,000+) cell feature ...
3
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0answers
60 views

How to access attributes from linked tables (QGIS 2.14.2 Essen)

I have one source shape file like this: It consist the geographical coordinates of weather stations: And several attribute files, wich contain the Temperature data of each date for several years ...
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0answers
36 views

Using a join in Arc with feature classes containing a definition query always return an inner join

At Arc 10.4, I am attempting to do an outer join (using the "Keep all records" option) between two file geodatabase feature class layer tables. Each of the two tables has an identical Definition ...
3
votes
1answer
30 views

Joined table fields don't work in print composer?

I am trying to use the attributes of the current atlas feature, which is from a joined table. In the expression builder it shows the correct value, but the result is blank when I actually try to ...
0
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1answer
40 views

after to make join between 2 tables a field is not recognize [closed]

I made join between two attribute tables with a common field and then I tried to use python to read a field and now field is not recognized on the new table.. Is it normal? How can I solve this ...
3
votes
3answers
78 views

Joining Excel File to ArcMap

I'm trying to join an excel file to ArcMap. The information in the excel file is clean and doesn't contain any characters that might hinder the joining process. However, when I join the file, all of ...
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1answer
22 views

Search and Update Cursor Automation: Avoid <Null> Values and Recognize Data Values

I am attempting to Search Cursor through a joined table. (I do not have access to the original separated tables) If the value of "COMPANY" and "DATE_" are then they will be skipped and it is ...
1
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1answer
72 views

Postgis spatial join performance (point on area)

I need to update a single attribute of a large table of point data with a result of a spatial join (point on area operation) on a polygon table. I'm using the below query but wondering if this is the ...
1
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1answer
18 views

Processing “Join by attribute” issue

I don't know what's going wrong when I try to join a shape file with an xls or csv. I do have the same identifier in both files. The joined file has all the expected columns but they are all empty. ...
1
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1answer
27 views

How do I combine missing data in one table with another?

I have two tables. I need to join data from table A to table B. Both tables have the same field names and same set of data, except Table A has quite a few rows of data that table B does not have. The ...
2
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0answers
43 views

Unable to add feature class based on database view in ArcMap

To solve Rendering features based on relationships using ArcGIS for Server?, we created a view in the database that joins the two tables together. That works fine. I see the feature class in ...
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2answers
58 views

How can I display my Excel file in Arcmap 10.4?

I am currently working on a project. I have created an excel spreadsheet: So, I need to attach the spreadsheet into ArcMap 10.4 and show the states population percentage. I have already created a ...
1
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1answer
65 views

Why does joining all layers in a group not work?

I am attempting to re-join all layers within a group to another layer ("Main.shp") outside of this group. The idea is for users to change values in one of the group's layers. As these layers are ...
3
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0answers
57 views

Using one to many join to *.xlsx in ArcGIS Desktop? [closed]

I'm working with ArcMap 10 and have some trouble joining a shapefile and a .xlsx file. The .xlsx contains sensor data (CO2, NO2 etc.) without location information. The shapefile contains all the ...
0
votes
1answer
26 views

Identifying the closest polygon to a point dataset

I have two large data sets one point and one polygon. What I was looking to do was identify which polygon is closest to each point. Hopefully I was looking for a automated process as the point data ...
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0answers
57 views

Updating attribute data based on another layer and key field?

I currently have two polygon layers (one building layer and one property layer). The information for the property layer is updated and supplied by an external source. In the building layer, I use a ...
3
votes
1answer
34 views

Positional join with multiple overlaying geometries, each containing a different attribute

I can't find any documentation on how a spatial join in QGIS is working on the following situation: An area layer is being spatially joined with a polyline layer in order to compare attributes of ...
2
votes
1answer
54 views

QGIS Join table with shp file. Get Null Values on the join fields

If my problem is that my ID types are not the same, I need help in addressing that. I started with an excel file, I read that on a mac to I need to save that as a Windows comma Separated file. I did....
2
votes
1answer
99 views

Why do layers with different CRS overlap fine but cannot be merged by location?

Perhaps someone could clear this up for me? I have a shapfile with the CRS Selected CRS (EPSG:29902, TM65 / Irish Grid) I also have a number of XY points which take the CRS, Selected CRS (EPSG:4326, ...
3
votes
1answer
47 views

ArcGIS Add Join Not Working?

Im currently working on a ArcGIS ModelBuilder Project where I want to use "Add Join" to look through a list of species (Table 1: converted from excel -> Make query table -> Copy rows (to get index)) ...
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0answers
26 views

Joining a table with an If/Then Statement

I want to join two tables in ArcMap, but not every feature has the same common attribute in the two tables I want to join. For example, "Feature 1" is in both Table 1 and Table 2 and both tables have ...
1
vote
1answer
57 views

Calculate Field not saving on joined layer

I'm joining a table to a layer file, calculating a field in the layer and then removing the join. The code below runs with no errors, but when I check the field in the attribute table, nothing has ...
1
vote
1answer
32 views

Joining attribute data from one layer to another layer in QGIS 2.12.2-Lyon

I have a polygon vector layer that I am trying to join its attributes to a point vector layer. The problem is that the polygon layer consists of grids that are numbered 1-150 (ID) and I am trying to ...
2
votes
2answers
74 views

Output shapefile has no records after joining shapefile with table and exporting result?

I have successfully joined a .xls Excel spreadsheet to a shapefile. The join is successful (the number of remaining records seems accurate), although it takes a really long time (like 20 minutes). For ...
1
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0answers
20 views

CartoDB geom (coordinates) join: without exact match

Trying to join two datasets (layers) on CartoDB based on their geographical fields (in CartoDB's the_geom created field). However, the basic ST_Intersection function does not work since its tolerance ...
2
votes
1answer
48 views

Expand Street Network passing through points using QGIS?

I have a road network (red) passing through some traffic data points (green): I want to expand this network to include all of the points. I already have a bigger street network (blue) from which I ...
2
votes
2answers
93 views

ArcPy: Excel to Table Conversion and Join Management

I am trying to join an Excel table to a shapefile in ArcPy. My first step is to convert the Excel sheet to a table, but I am receiving an error: #Convert xlsx to table: import os import xlrd import ...
0
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0answers
33 views

Add Join issue with ModelBuilder?

I am trying to do a simple Add Join within ModelBuilder but it keeps throwing the 99999 error. What is going wrong? I have even tried to create a Table View for the table I am joining to a feature ...
1
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1answer
30 views

In QGIS is there a way to select one feature from a layer and only see related features from another layer

I am self taught. I have 3 layers on my map: Retailer, Producer and Processor. Each business in each of these categories has a unique identifier, their license number. I have a CSV file with a list ...
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votes
1answer
40 views

Simple join not working

I am joining a large excel spreadsheet to a feature class. Both have a little over 8,000 records. I have gotten this particular join to work before, unfortunately I had to redo it. This time I cannot ...
2
votes
1answer
61 views

QGIS Attribute update using excel

I am looking to update the Attribute table for a Layer in QGIS using a join. However I am not looking to ADD attributes to the table (thereby adding extra columns) rather I would like to "Update" ...
1
vote
1answer
42 views

Joined attributes not available in Feature Service

I have a joined feature class (PROPERTY) and table (OG_LEASE). When I publish this as part of a map service and feature service, attributes are only available in the map service. Map service fields: ...
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0answers
31 views

Command line join attributes by location using OGR

I have two overlapping vector files (polygons and sample) and want to do a spatial join from the command line to extract all features in polygons that intersect with sample. Essentially I want to have ...