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Премиум
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    Introduction
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    Data model and its types
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    Entity, Relationship and Attribute Explained
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    Database Designer's perspective
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    ER Model and Relational Model - Advantages and Disadvantages
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    Basic Idea of Attributes of relationship
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    Simple vs Composite Attributes, Single valued vs Multi-valued Attributes
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    Stored vs Derived Attributes
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    Complex Attributes
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    Degree of a relationship and Cardinality Ratio
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    Cardinality Ratio Explained with example
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    Types of Participation - Total vs Partial Participation
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    Example to illustrate Total and Partial Participation
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    More Examples on Maximum and Minimum Cardinality
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    Types of Relationships
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    Recursive Relationship
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    Example on finding the type of relationship
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    Tuple, Field, Domain and Entity vs Entity types
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    How Relational Model is derived from Discrete Math
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    Degree of a relation, state of a relation, Intention vs Extension
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    Important Rules in Relational Model
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    Types of Constraints, Domain Constraints Explained
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    Key Constraints - Intro
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    Super Key Explained with example
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    More Points on Super Key
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    Key Explained with example
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    Example to illustrate the difference between Key and Super Key
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    Super Key vs Key vs Candidate Key vs Primary Key
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    Finding the number of Super Keys
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    Finding the number of Super Keys - 2
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    Finding the number of Super Keys - 3
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    Key Constraints
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    Entity Integrity Constraints
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    Foreign Key Explained with example
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    Example on Foreign Key
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    Difference between Foreign Key and Primary Key
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    Referential Integrity Constraints
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    Constraints violated by Insertion
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    Constraints violated by Deletion
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    Constraints violated by Updation and Viewing
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    Steps taken by DBMS in case of constraint violation
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    Problem on ON-DELETE CASCADE
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    Problem on Referential Integrity Constraint
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    Problem 1 on finding the number of Super Keys
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    Finding Number of Super Keys using Venn Diagram 1
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    Finding Number of Super Keys using Venn Diagram 2
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    Important Observation
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    Finding Number of Super Keys using Venn Diagram 3
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    Finding Number of Super Keys using Venn Diagram 4
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    Conversion of Entities, Attributes, Prime Attribute and Composite Attributes
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    Conversion of one-to-many relationship
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    Example for conversion of one-to-many relationship
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    Conversion of One-to-one relationship
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    Conversion of Many-to-many relationship
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    A good approach to follow but not a rule
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    Problem on Multivalued attributes
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    Problem on finding minimum number of tables needed for conversion
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    Problem on finding maximum number of tables needed for conversion
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    Special Case : One-to-one relationship with total participation on both sides
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    Lecture 60 continued
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    Weak vs Strong Entity - Differences
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    Example to illustrate Weak Entity and their conversion to Relational model
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    N-ary relationships
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    Identifying Relationships
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    Important Notations Revisit
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    Problem 1
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    Attributes to relationship : one to many relationship
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    Attributes to relationship : one-to-one relationship
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    Attributes to relationship : many-to-many relationship
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    Problem
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    Introduction to Functional Dependencies
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    Examples on Functional Dependency
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    Important Point to note
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    More Examples on Functional Dependency
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    Trivial Functional Dependency
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    Non Trivial Functional Dependency
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    Semi Trivial Functional Dependency
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    Important Point to Note
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    Closure set of an attribute 1
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    Closure set of an attribute 2
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    Closure set of an attribute 3
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    Example on finding Closure Set
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    Applications of Closure operation
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    Problem 1 on finding keys using Closure Operation
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    Problem 2 on finding keys using Closure Operation
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    Problem 3 on finding keys using Closure Operation
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    Problem 4 on finding keys using Closure Operation
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    Problem 4 on finding keys using Closure Operation - continued
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    Problem 5 on finding keys using Closure Operation
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    Problem 6 on finding keys using Closure Operation
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    Problem 7 on finding keys using Closure Operation
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    Problem 8 on finding keys using Closure Operation
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    Problem 9 on finding keys using Closure Operation
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    Problem 1 on finding keys of sub relation
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    Problem 2 on finding keys of sub relation
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    Problem 3 on finding keys of sub relation
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    Problem
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    Checking Equivalence of FD'S - 1
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    Checking Equivalence of FD'S - 2
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    Checking Equivalence of FD'S - 3
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    Checking Equivalence of FD'S - 4
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    Minimization of Functional Dependency Set - 1
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    Minimization of Functional Dependency Set - 2