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

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65 views

Convert raster to polygon then join attributes

I'm trying to convert IMG files to shapefiles, then joining the attributes of the IMG file to the new shapefile. I got the conversion part to work, but am a stuck on how to join the tables. I have ...
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0answers
16 views

How to join CSV data (based on admin boundary names) to shapefile of aforementioned boundaries in R? [duplicate]

DATA: CSV data, Shapefile Hi all! I'm looking to perform what I've been taught is called a spatial join. After researching this further, it's looking like this operation is most often called a ...
3
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1answer
133 views

Field calculator uses wrong fields when working with joined data

I am having an issue in qgis table joins. i have a joined a csv file to a sqlite database and common id is used for join. the join is displays correctly in attribute table. the attributes in sqlite ...
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2answers
2k views

Join Field works in ArcMap but not in Python

I am trying to join a field of values found within a DBF to a multi-polyline shapefile. They share a common field name (filename) and the values found within each are identical. I was able to run Join ...
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18 views

(non spatial) One to one join and keeping all data

I have a set of over 20,000 villages in xls that only have a ward assigned to them - no coordinate. I do have a ward shapefile. Now I have created a data set of random points (shp) and spatially ...
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2answers
3k views

After joining shapefile with CSV file graduated symbols option unavailable in QGIS?

I have successfully joined data from a csv file to a shapefile in QGIS but for some reason I am having trouble symbolizing my data. I want to use a graduated symbology however this option is not ...
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6 views

Trouble with graduated symbols after joining shapefile with csv file Again [duplicate]

This question has already been asked: Trouble with graduated symbols after joining shapefile with csv file BUT I do not know how to create a csvt file? Having a lot of trouble with this. Is there ...
3
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1answer
78 views

Does joining CSV file to shapefile overcomes the 255 character limitation of shapefile? [duplicate]

I have a CSV file in which some fields contain values greater than 255 characters. I want to ask that wether joining the CSV file with a shapefile overcomes the 255 character limitation of shapefile ...
2
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1answer
296 views

How to import Excel data and display it on a state map in QGIS?

I want to import summarized data from Excel into QGIS 2.4. The date consist of US states and Canadian provinces paired up with a percentage. The data looks like this: State % CO 50.4 IN ...
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1answer
63 views

Join new data to selected features in a table using Arcgis

I have a point feature class, A, and I have joined data from another point feature class, B, to its attribute table based on spatial location. I selected the second option in the Join Data window ('...
2
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163 views

How to automate calculation of distance between a zip code (centroid) and an address within one line of data?

I have a large data set of federal contracts which includes two pieces of spatial data per entry (or line): the zip code in which the project took place and the address of the contractor. I am ...
3
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1answer
121 views

Is there are way to import non-geo JSON files into QGIS?

Here is a json file containing various attributes relating to countries. However, it does not contain any geographic data. http://bost.ocks.org/mike/nations/nations.json I would like to join these ...
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7answers
39k views

Having problems with joining an excel table to a shapefile in ArcMap

I have a shapefile of lower layer super output areas (LSOA) for England and Wales and I have a spreadsheet of the indices of deprivation for each of the LSOA's in England. I want to join the ...
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0answers
27 views

listing existing joins in table of contents feature

I am looking for a way to use python in ArcGIS desktop to check and print out the joins that exist between tables and feature classes in my map rather than right-clicking, going to joins and relates ...
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1answer
53 views

Python Scripting Displaying Incorrect Names after Join Field

My problem is that the code is adding numbers to the field names, and this is incorrect. Problem: Field should be names VALUE_122, but after running JoinField code, it becomes VALUES_122_123. The ...
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2answers
98 views

One-To-Many Join

I have a ZIP3 boundary feature class that contains roughly 900 records. I then have a table in a geodatabase that has 21000~ records and a ZIP3 field. How would I go about making a feature class ...
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3answers
6k views

Joining tables without losing original field names in ArcGIS for Desktop?

I'm wondering if there is any method to preserve the original field names in ArcGIS when I join csv. tables to a Shapefile. I ask, because sometimes I join tables with 10, 20 or even more columns ...
3
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0answers
32 views

Optimisation of MySQL JOIN based on a Within match

I have a table of points and boundaries, and am trying to add the boundary ID which a point is within. However, using a LEFT JOIN ON Within(location, boundary) it is taking about 3.5 hours match 450,...
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0answers
68 views

Making Large Data Sets Faster in ArcGIS Online or Portal

I have a sql view joined to a parcel layer for the entire city of New York (over 800k records). All data is registered to to the arcgis server. As you could imagine, this produces very slow response ...
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1answer
127 views

Conditional Spatial Join?

I need to join two layers (a fishnet grid and land cover). I'd like the join to occur only if the the land cover occupies 50% or more of each fishnet grid (See image below). Can anybody provide an ...
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0answers
100 views

How to show two layers at the same time in Qgis

I have a question about Qgis layers. I want to see two layers at the same times. one is lines which are boundary lines and the other is polygon which are district. when i was surfing about this ...
3
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3answers
279 views

How to Join two feature classes without common attribute

I have two shapefiles of essentially the same objects however, one shapefile has terrible spatial data but great attribute data and the other is the reverse. What I'm looking to do is essentially a ...
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0answers
87 views

Using Join with a Raster File

I would like to add a new field to a raster file. Then, I would like to add the new field content. Can I do this with a join of attributes? I know that a raster file can be reclassed. But there ...
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25 views

Fail in searches on the joined table data

When a table is joined to a standalone table, the searches on the joined table data return a fail. Is there another way to solve this inconvenient without save the layer with joined table under a new ...
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29 views

Join tables in QGis 2.01. Dufour

I performed a "join" going to the properties option in a shapefile (in this case is just a table), in order to join the attributes from another shapefile that has a field in common, specifically "...
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0answers
44 views

Can joined tables be served by QGIS Server WFS?

I'm trying to figure out whether it's just me, or if I'm forgetting a setting. I have a shapefile which I make available for WFS-requests. Now I added a join (to a MySQL table). I tried playing ...
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94 views

Join tables with duplicate values

I have two sets of data: list of parcel numbers and locations which I am interested in Address database for the county (shapefile) In dataset 2 there can be multiple instances of the same parcel ...
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79 views

What is the function for Joins and Relates?

I was writing a script to do a Join based on Spatial location. I don't want to do a spatial join as it will have all the fields of the layer that is joined to the target layer. I want only the fields ...
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65 views

Assigning one-to-many polygon to .csv data in ArcGIS for Desktop?

So I am currently working with two separate files. One is a polygon feature class detailing a specific countries' subdistricts. These subdistricts are identified using a specific alpha-numeric code. ...
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0answers
58 views

Nearest neighbour / spatial join with attribute condition

I have 2 point format datasets I wish to schematically join (manholes & gullies). I am content that I can join them by nearest proximity alone using e.g. NNJoin plugin. What I would like to do ...
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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 = { ...
3
votes
1answer
47 views

ArcGIS converting list of enumeration in single field of s-57 data?

Im storing s-57 data in an MDB which is being symolised via a layer. Some attributes in s-57 data can be a list of enumerations and I want to find a way to show the actual values the enumeration ...
3
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1answer
5k views

Why can't I use a Join in a model?

I'm trying to build a model using Model Builder in ArcGIS 10.1 that starts off by joining two shapefiles together based on a common field. I would like to make this open ended (not hardcoded) so I can ...
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4answers
100 views

ModelBuilder - Iterate through tabels to join and export and keep original field names

I am trying to iterate through an excel with over 200 sheets and join each to a ZIP code layer. I then need to symbolize each of those the three different ways and save that to a layer file. In order ...
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1answer
66 views

Joining Excel file with CityGML file using FME?

I want to join a excel file with a CityGML file with FME. i want to join the excel file with the geometry of the CityGML file. all attributes should join this file which settings should i choose ...
1
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1answer
46 views

Joining table to a near table

I calculated the distances between one set of xy coordinates and another set of xy coordinates. So my near table has the ID variables, distance and rank. However, when I join the near table to the ...
2
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1answer
82 views

QGIS feature subsets are incompatible with table joins. Bug?

When using QGIS 2.8.2, I am unable join a table to a layer that has a feature subset (Layer Properties > General > Feature Subset). For example, creating a feature subset on a layer prior to joining ...
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1answer
74 views

Working w/ Shapefiles Containing 50,000 to 300,000 Features

I work daily with shapefiles that are quite large in number of features using ArcGIS. Sometimes I am able to perform operations (joins, selections, exports, etc) on these shapefiles (though they do ...
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81 views

What is corrupting my layer file?

I'm trying to save layer files from a colleague's mxd. As usual I right clicked on the layer and saved as layer file. Simple - but no - the layer files can't be opened. I get this message "Adding ...
2
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1answer
161 views

How to conduct an inner join with QGIS?

My QGIS (2.8.2) joins always result in an outer join. How do I create an inner join with QGIS?
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1answer
140 views

Problems when joining large shapefiles to excel table

I began with a shapefile of 330,000 features, each having already been geocoded (not that it matters I don't think). I attempted to join this shapefile to an excel spreadsheet but of course, Arc ...
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1answer
69 views

Join line segments sharing a common attribute, using GDAL

I'm having trouble rendering a shapefile consisting of trail routes broken down into many short segments. So I'd like to combine them into a small number of line features, which share a NAME and touch ...
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0answers
64 views

Export Joined table an Feature layer based on a query

I have a table and a layer joined fine, I am trying to export the end result into a file geodatabase, the export is fine if I specify specific name, other than that it exports the original layer data. ...
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2answers
449 views

How to join a File Geodatabase table with only one record of Feature Class

I've a Geodatabase containing a Featureclass and some File Geodatabase Tables. Each File Geodatabase Table is actully about the only one record of a featurClass. Can We Join these File Geodatabase ...
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1answer
69 views

ArcGIS Route Analysis

I have a pipe network that is a imported CAD file converted to lines showing complete runs of pipe in a system. I also have a Access database imported to ArcGIS set up as a relate to my Pipe line ...
0
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1answer
1k views

MapInfo SQL: Selecting all columns from one table, some cols from second table?

I'm fairly adept with the SQL Select in MapInfo, but I'm running into something that's got me a bit stumped. I've got data in two tables that have a few columns in common. I want to join the tables ...
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0answers
21 views

Adding values from a text file to a gridded area on my map [duplicate]

I have a .txt file with comma seperated values. Each individual value corresponds to a cell in my grid. The first value in the .txt file corresponds to the cell in the first column and first row of my ...
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1answer
92 views

Joining Parcel/Building Attributes Based on Coordinates

GIS noob here: I downloaded a building footprint shape file for a city and imported it as a vector layer in QGIS. I was hoping to see street address information in the attribute table, but there was ...
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1answer
112 views

Adding data from a table to a grid in ArcGIS

I have a table with 720 rows and 156 columns. I have a grid with 720 rows and 156 columns. I would like to assign the values from the table to the corresponding values in the grid. I am a beginner to ...
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2answers
88 views

Spatial Join returning max value and unique ID

Using ArcGIS 10.3 I have a dataset containing polylines of a pipe network, along which I have a polygon layer representing a burst every 50m. The burst layer contains a value (p) and a unique ID (the ...