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

learn more… | top users | synonyms

0
votes
1answer
28 views

Painfully slow performance with Join and Calculate Field

I have a point layer and a table with approximately 100 fields. I need to join the table to the point layer based on a key field and create a new shapefile / feature class. This script has been ...
0
votes
1answer
245 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. ...
1
vote
1answer
149 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 ...
3
votes
1answer
32 views

Join Tool (Data Management)

I have a new table with statistics data that has been calculated with the tool: Zonal Statistics as a Table; in order to know the min, max, mean, range, std, etc, from a thickness value that was ...
4
votes
1answer
144 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 ...
1
vote
0answers
24 views

Joined field not recognized as number in QGIS 2.4 [duplicate]

I have a weird problem. I've loaded in QGIS a point shapefile and a CSV table. Then I performed a join between the 2 layers and all works fine. But then the joined columns (made of integers or real ...
1
vote
1answer
57 views

Using ModelBuilder to Iterate, Join & Export Feature Classes?

I am trying to make what I thought was a very simple batch processing tool, but I can't get the output to work properly. I would like the model to iterate through a geodatabase, join each feature ...
5
votes
1answer
46 views

Is it possible to have a 1:n join which takes the min, max, or average value?

I need to join the attributes of a shapefile with the one contained in a .dbf (or .txt) file. I currently use the "join" in the properties menu, but I have a problem. In the shapefile I have one ...
2
votes
2answers
49 views

Unable to merge CSV and CSVT with shapefile using QGIS due to “text” fields?

I know the question is all over this site, unfortunately I cannot find a solution. I have this CSV file and this CSVT file that I want to merge with this shapefile. I've tried to format the .csv using ...
17
votes
4answers
8k views

Joining non-spatial CSV file to spatial data (shapefile) using QGIS?

I have a CSV file which has postcode data in a field, but it is non-spatial e.g. no Easting and Northing. I have a shapefile with postcode in a field and some additional data. I want to join the ...
0
votes
2answers
222 views

arcgis - updating joined excel file when adding a new sheet

When adding a new sheet to a joined Excel file in ArcGIS, the new sheet will not show till I exit both arcgis and excel. Is there a better way to update the connection...? edit: sorry for the delay ...
2
votes
1answer
35 views

Adding attributes to an existing shapefile [duplicate]

I have a shapefile made of buildings, each one of them characterized by some attributes. I need to add some attributes contained in a .dbf file. The two files have in common the attribute "ID", so the ...
6
votes
2answers
1k views

Join attributes of point and line layer by location (closest distance) in QGIS

My problem is the following: i have a line shp (target layer) and a point shp (join layer). the second one (point layer) holds an attribute which i want to join with a line layer based on closest ...
2
votes
2answers
2k views

Creating non-spatial Many to One Joins/Relationships between tables

I may have missed a trick here but I can't seem to find a solution. I have a table of ~1.6 million postcodes, also containing co-ordinates, and a separate file detailing ~6000 a population with ...
4
votes
2answers
3k views

ArcGIS - Create a join based on multiple fields

I have two feature classes in a File Geodatabase that I would like to join based on multiple fields. I've searched this site and Google and all I have come up with was to use the Make Query Table ...
1
vote
1answer
50 views

Join command, desired field not available to select

I have a problem regarding ArcGIS 10.1 and any help would be greatly appreciated. I want to join a shapefile in which I stored geographical information with a CSV data file containing certain ...
2
votes
1answer
94 views

CartoDB merge tables (column join) returns import error

I have been trying to merge two tables using the column join in Carto DB. The first table is a table of US counties that contains the polygon geometry and the FIPS id code. The second table contains ...
2
votes
1answer
45 views

Populate a layout text element with the description from a coded value domain

ArcGIS 10.1+ lets you easily put dynamically populated text boxes in your print layouts. Doing so puts some text in the text element that looks something like this: <dyn type="page" ...
2
votes
1answer
41 views

Joining QGIS extent table with shapefile

I used QGIS to find the extents of a list of features from a census boundaries shapefile. I used Vector - Research tools - Polygon From Layer Extent, which creates a new shapefile with a table of ...
6
votes
2answers
3k 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
votes
1answer
596 views

Joining table to shapefile with pyQGIS

Joining shapefiles is a relatively straightforward proess in QGIS using 'add vector join' in the layer properties menu. I can add a csv file as a vector layer, as well as a shapefile, and join the two ...
2
votes
2answers
114 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 ...
1
vote
1answer
49 views

ERROR 000728: Field Code does not exist in ModelBulider using iteration

The first join in the model is working, but after this the names of the fields are changing in the name of the Shape and a number . Therefore get the ERROR 000728. So I like to ask you if there is ...
0
votes
0answers
31 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 ...
3
votes
0answers
56 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 ...
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, ...
2
votes
1answer
78 views

MapBasic sentence to update column contained in an object table

I was looking for a MapBasic sentence to update a MapInfo table. I've got two tables and I want to update one of them (POINTS) with an attribute of another (REGIONS). I would like to update points ...
3
votes
0answers
147 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. ...
2
votes
1answer
76 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 ...
2
votes
1answer
81 views

nearest facility with pgrouting

I have a postgres table of students with lat, lon and geom, , and a table of schools with the same, and a table of roads that has been converted to nodes. I'm trying to find the driving distance to ...
4
votes
1answer
120 views

Find max and min values from a table based on two fields

I have a geodatabase table with the following fields: County_Name, State_Name, Date_Time, Customers Example Alameda, CA, 8/1/2014 12AM, 6 Alameda, CA, 8/1/2014 1AM, 1 Alameda, CA, 8/1/2014 2AM, ...
4
votes
1answer
125 views

QGIS 2.2 - possible to do a JOINS from the Action list?

I have a set of layers that need to be joined (Layer Properties > Joins) to one specific layer. The reason for this is that I will be updating and adding new layers into my project and would like a ...
1
vote
0answers
34 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") ...
1
vote
0answers
37 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
vote
3answers
427 views

Join excel attributes to shape attribute

I am wondering if there is a way to join the attributes from excel tables to shapes in Qgis. I have abbreviations in the shape and want to add the associated complete names from excel file by ...
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 ...
1
vote
0answers
32 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
2answers
43 views

Changing field type of Excel attribute table for a Join

I have a string field type of shapefile already in ArcMap. I need to import an excel file in and join with the shapefile. The only problem is the field type of the shapefile is a String and the field ...
-1
votes
2answers
47 views

Adding an excel database to an existing shapefile [duplicate]

I have a spreadsheet with various feature data; I would like to add this data to an existing shapefile. I have a common column in both the shapefile and the excel data. I would like to be able to ...
4
votes
7answers
19k 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 ...
1
vote
1answer
86 views

Join of two attribute tables with different amounts of rows

I have a hard time sorting the following out: I have two different Shapefiles. The attributetable of one, lets call it shapefile A looks the following: SHAPEFILE A ATTRIBUTETABLE Name Type ...
0
votes
1answer
30 views

Join leads to null value outside of edit session

I am using Arcmap 10.2 on Windows 7 I joined a shapefile with an Excel file, and the attributes are shown as until I start an edit session. Then, the values are as they should be. They match up by ...
0
votes
1answer
45 views

Is exporting to feature class the simplest way to make joins permanent?

I am a new user doing simple tasks with ArcMap 10.1 I have a shapefile and an excel file, and I want the join to be a permanent part of the shapefile. The way I've been going about this is to export ...
0
votes
1answer
41 views

How can I get a join for pre-existing fields?

I am joining some values from a table to a shapefile. The table and shapefile have the same column names and types, but when I join, Arcmap creates a new field, and I just want the join to write the ...
2
votes
0answers
70 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 ...
1
vote
1answer
49 views

How to join two tables and convert joined table to a vector layer containing points in QGIS? [duplicate]

I have one table that contains 450 locations and a table that has 10'000 rows containing data and no spatial information. I have a column that allows me to join them. The issue is that I want to have ...
1
vote
1answer
71 views

Error using 'Join attributes by location' via Python

Trying to run a simple script using qgis:joinbylocation but getting either errors or it's not processing correctly. I don't want to take a summary of the attributes, just the attributes of the first ...
0
votes
1answer
62 views

postgis, st_within, and a join

So I'm in the middle of learning postgis/postgres. I've a polygon table. I've a point table. The polygon layer contains a foreign key that points to another table. For the example the Foreign key ...
0
votes
0answers
29 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
38 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", ...