relational join
The operation of relating and physically merging two attribute tables using their common item.
Relational Join The process of connecting two tables of descriptive data by relating them by a key item, then merging the corresponding data. The common key item is not duplicated in this process.
relational join
Appending the fields of one table to those of another through an attribute or field common to both tables. A join is usually used to attach more attributes to the attribute table of a geographic layer.
relational operator ...
Explore a Relational Join
Open the attributer table for the zoning Layer.
Open the ZOnecode Lookup Table
Arrange the tables so that you can see some polygons that are in the zone Right of Way.
Multi-table relational joins
Advanced mathematical and statistical functions
Data conversion
Spatial transformation or projections
Complex boolean selection based on fields in multiple classes ...
join See relational join.
L
label point See point. LAN Local area network. Computer data communications technology that connects computers at the same site.
KEY
A unique identifier for each RECORD in a table or each ENTITY in a data set which is used to link this table or data set to others. See also RELATIONAL JOIN.
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Such relational joins are usually ad hoc in nature and form the basis of for querying in a relational GIS product.
 See also: GIS, Model, Analysis, Database, Information
  
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