Vault sync: 2021-10-25 16:41:26

2021-10-25 16:41:27 +02:00
parent 98626190c5
commit 3b3fd82903
2 changed files with 16 additions and 3 deletions
--- a/School/Development/SELECT.md
+++ b/School/Development/SELECT.md
@@ -13,3 +13,16 @@ Structure of a database includes data types, relationships and constraints that
 - Low Level: Physical data models
 - Representational: implementational data models

+## Conceptual Data Model
+
+Conceptual data models use concepts such as: entities, attributes and relationships.
+
+An entity represents a real-world object or concept. Examples are: Employee, Product, etc...
+
+## Entity
+
+An entity is the 
+
+
+
+