Questions tagged [relates]
The process of connecting two or more datasets having one-to-many or many-to-many relationships based on a common attribute.
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Avoid adding a bunch of new features for one static location for repeat sampling efforts in Field Maps
I have built several maps and forms for their use in Field Maps for various projects. Most have been creating new features and filling out the form for the new location where we sampled. However, we ...
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In ArcGIS Online Dashboard, is it possible to make a chart based on a relate?
An ArcGIS online Dashboard, is it possible to make a chart based on a relate? A relate is a one-to many-join. My proposed relate is a hosted feature layer to a table. So each of the polygons in my ...
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QGIS Linking multiple layers in polymorphic relationship
I am creating a tree survey system in QGIS. There will be three geometry layers (called 'Single Trees', 'Line of Trees & Hedges', 'Groups of Trees') and each of those layers has a 'TreeUUID' field ...
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Auto-populate a field based on information in two different fields
I am attempting to auto-populate a field using matching information in two different fields in ArcGIS Pro.
The field that I am trying to populate is "Unique_ID." Table #1 includes three ...
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QGIS aggregate expression to filter selected features in 2nd layer
I´m working with two layers in QGIS:
First one with point geometries representing water quality sampling places (LAYER A).
The second is a spreadsheet (no geometries) that contains pollution values ...
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176
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QGIS - expressions with fields from a related layer
In QGIS I have:
a point layer;
a table;
a relation (Project > Properties > Relations) 1 to many between the points and the table;
What I need to do is to set a graduated symbology on the layer ...
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Can I save nested Layers in a long format table?
I want to create a QGIS project for sampling crustaceans in rivers using Qfield. I want to collect environmental data as well as the abundance of each species found in different microhabitats.
So far ...
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Filtering an aggregate function in a many to many relationship to only records related to current record in QGIS
I have two tables related as an N-M relationship:
Sites:
id, geometry
Jobs: id, jobnum, .....
Sites_Jobs: id, site_id, job_id
I want to define a label for the Sites layer that displays all the ...
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Bring two (or more) attributes in different fields from parent to child table
I have a project set up with a parent and child relationship. The parent is the geospatial data with various attributes including a UID and Name. The child table is for regular site checks. The ...
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Building a WFS whose features hold lists of records
I've got two tables in a PostgreSQL/PostGIS database:
UTM (geom geometry(Polygon,25830),utmcode character varying(6))
Species (species_name character varying(50), utmcode character varying(6), ...
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Formulating Table Relate using ArcMap
I'm moving our floorplans for a major organization into GIS to take advantage of analytical capabilities. I've prepared and figured polygons for each classification layer I want but when it comes to ...
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Relate two tables with different number of entities
I want to join two layers: One which has information about the height and width of the wind turbines (fields to join) with only 4 or 5 entities or sometimes less, and the other is a layer with lots of ...
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Filter by field value in a child table
In QGIS, I would like to filter the display of a parent table in (a postgis point theme) by the values in a field from a child table (a postgresql table in the same db). The parent table and child ...
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List string values from multiple related tables in ArcGIS Pro popup
I have a polygon feature class (BIA tribal boundaries) with three relationship classes set up to relate to three separate tables, each with a 1:M cardinality from the feature class to the table. I ...
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Exporting 1:M relate in ArcMap
I am using ArcMap 10.8.
I have a relate established between a US Census shapefile and other US federal data (FCC form 477). The 477 data is going to have many records for each census block.
A relate ...
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Layer Symbology based on child table value
I have a point layer (Dormouse) linked to a child geometry-less table (DormouseSurveyData) with a 1-n relationship. I am trying to set up the symbology of the point layer to change color dependent on ...
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How to edit two field have the same domain at the same time in ArcGIS?
I have two layers (Parcel and Building ) with fields that have the same domain, for example ;
layer (Parcel) has fields with names ("Building status", "Land Use") with domains (...
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Display Related Data in Popups for Grouped Layers
I am creating a web map from a map service that contains related data. I want to display the related data in my point feature popups. I thought it would be easy to pull in the related tables in Arcade ...
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2
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568
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Joining table to feature class based on two or more fields using ArcMap
I have a table and I would like to join it to a polygon feature class but based on two columns. As in if the polygon has the same values in in column A and column B it will join. If the table has the ...
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Creating hyperlink with relative path in related standalone table using ArcMap [duplicate]
I have a polygon feature class which has a related table (1:n Relationship) containing the relative path of pdf documents in a field. Using the Info-Tool to click in a polygon in ArcMap 10.7 I can see ...
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485
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Rule-based symbology based on related layer in QGIS
I'm working with QGIS
I have two layers:
Layer 1: has the id and geom columns (multypolygon layer)
Layer 2: has the id, gid and type columns (table layer).
The value gid of layer 2 is the foreign ...
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136
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Enforce that all "Enforce expression constraints" of child tables are valid before I can save the parent feature
In QGIS 3.16 I set up a relation between two tables.
In the child-table I set a constraint-expression and checked "Enforce expression constraints".
If I add one or more features to the child-...
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457
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How I can make a child table appear in the parent table of attributes in QGIS?
I used "relate" to connect a many to one child table to a parent table (addresses to land parcels, one parcel can have several parcels) and I see it in the "form view but it is not ...
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146
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Filter parent layer with child table in 1-N relation in QGIS
I have a layer with a related (1-N) table and I need to filter the parent layer with values of the child table.
I have tried with the Query builder of the Provider feature filter in the layer ...
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585
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Performing many to one join in QGIS
I have read https://docs.qgis.org/2.18/en/docs/user_manual/working_with_vector/attribute_table.html#creating-one-or-many-to-many-relations and also many to one join in QGIS but I can't seem to be able ...
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How to join/relate points to polygons by field
I am using ArcMap with a basic license. I have a layer of polygon parcels and a layer of point turnouts. The turnouts deliver water to the parcel, but are not located within the parcel.
My parcels ...
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48
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Join/relation not an available widget option in the attributes form?
I cannot figure out why, but, in a tree/planting projects database, I have a fairly simply data model where I have one polygon layer to symbolize the area/project (eg. Maple Oak Park, John Smith ...
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Using ArcPy search cursor to relate .csv and .shp
I am using ArcMap 10.6.1.
I'm trying to write a script that relates data from a .csv file to a utility pole shape file. Basically, we want the script to iterate through the pole # fields in each table ...
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555
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Many to one relationship or join in QGIS
I have a road network layer that has a unique id "ID_2" for each road segment. I also have a table that contains the route for each bus network. Each row in this table contains the name of the bus and ...
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386
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Container 'Control visibility by expression' for relations
I have two relations in a project on QGIS 3.10. They have the same field ('fid') of the parent but different fields ('topo_part';'topo_part_loc') of the same child. I want to see these relations in ...
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How best to relate historical testing data to a shapefile?
I am tasked with bringing what has historically been only tracked in Excel into a shapefile. I am using ArcMap, but also have QGIS installed on my computer
What these shapefiles will include is ...
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125
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Using 1:n table relationships in rule-based symbology
I would like to use the value of a field/attribute in a parent table as a filter in an expression used to display features in the child table.
Specifically, I have a 1:n relationship in my project:
...
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281
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QGIS - Using Rule Based Labels With Related Tables
I have a two csv tables that have been related to eachother (RelatedResults):
Table 1 = Locations which is loaded as points
Which has the fields[ID] [Type] [X] [Y]
Example: Point_1, Frogs, LAT, LONG
...
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Finding point from Layer B that matches point from Layer A using search radius
I have two point shapefiles of trees from two different surveys. I want to verify if data from Survey A matches data from Survey B.
I want to create a search radius of 10m around each tree from ...
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Performing one-to-many join with address and crime data using ArcMap
Goal: I want to show the police calls coming from a parcel on ArcMap. So if you click on the parcel, it will show all the calls for the year. I want to join the address attribute from the parcel data ...
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Get Attributes from 1:n relation in QGIS as Expression to use in Atlas
I need to set up way signs for something like a "hiking-GIS". In the first step I made a network analysis (using QNEAT3) to find the distance from the signs ("Way Signs") to the available destinations ...
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Making chart with related table using ArcGIS Pro
I have a feature class with some locations of drills. I also have a table with data how deep the drill went and some more technical data in it.
I used relate on the feature class to connect the ...
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n:m relations of lines including directions
For trail planning and route signalization projects, I am looking for a solutions which allows me to connect "physical" trail segments (available as .gdb from authorities) with overlaying routes, ...
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Joining my spreadsheet data to my geodatabase file is not including all matching records
I have a map with roads, trails, and site gdb layers, and I have an Excel spreadsheet that I have imported with a list of the permitted companies for each of the designated roads and trails. I would ...
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390
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Using related records added on Collector (for ArcGIS) to update original feature class values and symbology
I currently use Collector for ArcGIS to carry out tree inspections. The design consists of two parts - a feature class layer which contains a point for each tree including data such as its species, ...
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Will my join remove my relate?
I have spatial data that has an existing related table with photo info.
I have data from another separate table that I want to join and then field calculate to add to my spatial data, then I would ...
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Splitting lines: Options for managing IDs and related records
I have roads in a feature class (Oracle 10.3 geodatabase).
Roads are split into separate lines where they intersect. This is an established business rule that cannot be changed.
Each road has ...
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QGIS 3 embedded forms - zoom or pan to child features
I have two tables and a relation defined on them via an 'in-between-table' (many-to-many relationship) like this:
This gives me nice embedded forms like shown below:
What I would like to achieve is ...
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Possible bottleneck in QGIS 1:n relation?
I've set up a 1:n relation linking two layers of the same geopackage. That are about 200k polygons in parcels and 700k rows in owners (non spatial). Now it works as expected but it is painstakingly ...
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Creating ArcGIS Online webapp builder Cemetery search?
I created an ArcGIS Online webapp builder app for a cemetery project. I loaded a relationship class into ArcGIS Online that relates plot polygons to a table of interred individuals. It is a 1 to many ...
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843
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Creating relationship class for many to many relationship
In Arcmap 10.7, I am trying to set up a relationship class that will link parcels to owners. The end goal is to be able select a parcel and see the owner, or multiple owners associated with it.
Some ...
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1:n relations in label expressions & general syntax
I've got a colleague who wants to create a (concatenated) label based on a 1:n relation between some shapes and related tables. They asked me if this was possible in QGIS - and I think it should.
I ...
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397
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Labeling polygons with the number of related table entries in QGIS
Using QGIS 3.6.1 I have a layer with areas and a table with entries related to the areas:
A relation is defined like this:
What I would like to achieve is to label the areas with the number of ...
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Displaying attribute value from related layer in QGIS Atlas?
I work on QGIS 3.4.4 Madeira. I have two related layers in my project :"towns" (polygon) and "interest points" (points), the common field is "town name".
In the Atlas, my cover layer is "towns".
I ...
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What differences exist between relates and relationship class in a geodatabase? [closed]
I am doing a project for my class and I was just wondering what differences exist between relates and relationship class in a geodatabase? And why and when would you use a relationship class over a ...
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