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State the terms Designing the database and Normalization
Designing the database: Out of the ERD we have formed, it is very easy to verify the tables, the attributes which the tables must contain and the relationship between these tables.
Normalization: This is a process of removing dissimilar kinds of impurities from the tables we have just created in the above step..
Describe the four main ways of optimising disk block access. Ans: a. Disk b. Non-volatile writes buffers c. File organization (Clustering) d. Log-based file system
what do you mean by consistency in rdbms?
What is the main difference between read-only and update methods? A read-only method does not affect the values of a variable in an object, whereas an update method may alter t
Identification of concurrency Identification of concurrency: Dynamic model identifies concurrency. Two objects are said to be parallel (concurrent) if they can receive events a
Determine the rule that a value of a foreign key should appear as a value of some particular table is called a Ans: Referential constraint. The rule that a value of a fo
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
what benefit can a company gain by managing its own infrasture and services
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
Which file organization provides very fast access to any arbitrary record of a file? Hashed file organization provides very fast access to any arbitrary record of a file.
Discuss the methods for a hash file to expand and shrink dynamically. What are the advantages and disadvantages of each? The hashing methods that permit dyanamic file expansi
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