ER To Relational Mapping Algorithm Step 1 Mapping Of Regular Entity

Relational Mapping Algorithm Step Mapping Regular Entity Types Step Mapping Weak Entity Types Step Mapping Binary Relation Types Step Mapping

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ER To Relational Mapping Algorithm Step 1 Mapping Of Regular Entity Types Step 2 Mapping Of Weak Entity Types Step 3 Mapping Of Binary 1 1 Relation Types Step 4 Mapping Of Binary 1 N Relationship Types Step 5 Mapping Of Binary M N Relationship Types Step 6 Mapping Of Multivalued Attributes Step 7 Mapping Of N Ary Relationship Types Step 8 Options For Mapping Specialization Or Generalization Step 9 Mapping Of Union Types Categories The ER Conceptual Schema Diagram For The COMPANY Database Step 1 Mapping Of Strong Or Regular Entity Types أول حاجة نبدأ بيها هى Strong Or Regular Entity Types وهى التى تكون معبر عنها فى الرسم EER Diagram بمستطيلات مرسومة بخط فردى فى هذا المثال يوجد ثلاث Strong Entity Types وهى Employee Department Project يتم التعبير عن كل Entity Type منهم بجدول مع اختيار اى من المفاتيح الموجودة بال Attributes الخاصة بال Entity Type لاعتباره مفتاح رئيسى Primary Key ملحوظة هامة 1 فى ال EER Diagram

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