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2023-06-14 14:37:28 +08:00 · 2023-06-14 14:37:28 +08:00 · d51b8338d7
parent f355978385
commit d51b8338d7
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--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@ -974,6 +974,14 @@
 						- Subclass :-> A distinct subgrouping of occurrences of an entity
 						  id:: 64895f39-d886-436b-9afe-ba75d37c8b45
 						  type.
+						- Specialization
+							- Process of maximizing differences between
+							  members of an entity by identifying their
+							  distinguishing characteristics.
+						- Generalization
+							- Process of minimizing differences between
+							  entities by identifying their common
+							  characteristics.
 				- LATER designing ER diagram
 			- DONE Block 3
 			  collapsed:: true