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--- data_concept:foreign_key [2023/06/26 13:35]
peter
+++ data_concept:foreign_key [2024/03/08 13:33] (current)
@@ Line 4: / Line 4: @@
 A foreign key is a [[data_concept:data element|data element]] of a [[data_concept:data file |data file]] that corresponds to a [[data_concept:primary key|primary key]] of another [[data_concept:data file|data file]].
-===Relation===
+===Relations===
-|Foreign key|is subtype of |[[data_concept:data element|data element]]|
+|Foreign key|is child of |[[data_concept:data element|data element]]|
 |Foreign key|corresponds with|[[data_concept:primary key|primary key]]|of another [[data_concept:data file|data file]]|
+{{tag>All}}