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List the drawbacks of relational database system
A) Repetition of data
B) Inability to s certain information.
define normalisation and functional dependency
Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
3 assignments combined in 1
Write short notes on relational constraints? Relational Constraints are: 1. NOT NULL 2. Unique 3. Primary key 4. Foreign key 5. Table check
Explain DML with some examples? DML - Data Manipulation Language: statements used for managing data within schema objects. Some examples: • SELECT - retrieve data from the a da
A Functional dependency is described by X Y between two groups of attributes Y and X that are subsets of R specifies a constraint on the possible tuple that can make a relation
What is a disjoint less constraint? Ans: It needs that an entity belongs to no much more than one level entity set. Disjoint less constraint needs that an entity belongs to
i would like to ask if you will do assignment of database number of words 1500 and how much
What are the advantages and disadvantages of using a database system. Sol. Advantages of Database System (DBMS) : (1) Data Redundancy and Inconsistency: Since differen
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