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What is Gathering information and Producing ERD
Gathering information: This could be a written document that explains the system in question with reasonable quantity of details.
Producing ERD: ERD or Entity Relationship Diagram is a diagrammatic representation of the explanation we have gathered about the system.
vertical fragmentation
Define a table in SQL known as Client that is used to store information about the clients. Define CLIENT_NO as the primary key whose first letter must begin with ‘C'. Also ensure t
Prove that a relation which is 4NF must be BCNF. Ans Let R be in 4NF. Suppose it is not in BCNF. Hence, there exists an FD X→Y in R such that x is not a super key. Although
What is banker's algorithm? Banker's algorithm is a deadlock avoidance algorithm that is applicable to a resource-allocation system with multiple instances of each resource ty
What are segments in oracle? Segments - Each table has single field of disk space, known as segment, set aside for it in the tablespace. Segments consist of contiguous sections
What are the two types of errors? The two types of errors are: a) Logical error b) System error
Question: i) Explain the terms data warehousing and data mining. ii) Discuss the importance of the following security principles that a digital firm should amongst others, n
how many hourse have been spent on a certain project
A field-groups statement or an insert statement reverses storage space and transfers values. False.
Differentiate between static hashing and dynamic hashing. Ans: Static Hashing comprises the number of primary pages in the directory fixed. So, while a bucket is full, we requ
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