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Question:
This form represents one of a number used for each sailing of a range of boats. A passenger may go on many sailings and will have the same passenger number for each. The cruise fee varies according to the sailing details (e.g. date of sailing).
(a) Represent the form as a relational schema and Normalize to third normal form, using dependency diagrams to justify decomposition steps. Show all the partial and transitive dependency in your diagram.
(b) Draw an ERD of the system from the tables obtained from the normalization process.
Describe queries with complex types? The present extension of the SQL query language deal with the complex type Let us start with the simple example: Find the title and t
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Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
Illustrate how you can use QBE to perform logical AND and OR operation
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Explain trigger? Trigger: A database trigger is procedural code which is automatically executed within response to certain events on a particular table in a database. Trigger
Hashed File Organisation Hashing is the most common form of purely random access to a database or file. It is also used to access columns that do not have an index as an optimi
Critically evaluate the bulleted list of information-related items in this case study. How are each contradictory to the notion of being an information-literate knowledge worker?
What are the reasons for having variable length records? What are the various ways to store variable length records? Variable-length records arise in a database in various wa
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
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