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I need help in doing my dbms project
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
East Coast Aquarium Relational Database
What is completeness constraint on generalization? Define the variation between total and partial design constraint. Give an example each. Ans: Completeness Constraints
Write short notes on relational constraints? Relational Constraints are: 1. NOT NULL 2. Unique 3. Primary key 4. Foreign key 5. Table check
Table_Name( attribute_1, attribute_2, attribute_3, ….. ,attribute_x) Primary Key ( attribute_1, attribute_2) Foreign Key attribute_4 References Table_Name_2 (repeat for each fore
Preliminary entities and attributes of human resourse management database management system
Explain Recursive relationship type? Recursive relationship type: A recursive relationship is one in that the similar entity participates more than once in the relationship
#question.explain diversity and magnitude of organic compounds and general properties?
Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
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