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Create centralized relational database using bottom up method. (a) Recognize a single un-normalized relation for the above scenario. (b) Recognize the primary key for the un-normalized relation. (c) Recognize all functional dependencies available in the above scenario. (d) From identified functional dependencies, produce a set of Boyce Codd Normal form relations. BCNF. (No need to do 1NF, 2NF and 3NF).
Why a report generator is used ? Report generator is used for print files on paper.
Explain data dictonary on oracle ? Data Dictionary - Data dictionaries are the system tables in which contain descriptions of the database objects and how they are structured.
What is the use of keyword ISA? The use of keyword ISA is to show that a class is a specialization of another class.
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
Give detail description on Transactions. - Using transactions we can group all SQL commands into a single unit. - Transaction begins with some task and finishes only when a
Boyce-Codd Normal Form (BCNF) The relation NEWSTUDENT (Enrolmentno, Sno, Sname, Cname, Cno,) has every attributes participating in candidate keys as all the attributes are assu
Database Manager It is the interface among low-level data, queries and application programs. Databases typically need a large amount of storage space. It is kept on disks, as
what do you mean by primary key constraint?
Aggregate functions Some of these functions are min, count, max, and avg. These functions help in getting consolidated information from a set of tuples. Example:
E-R model uses this symbol to represent weak entity set ? A Doubly outlined rectangle symbol is used to represent weak entity set.
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