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Which database level is closest to the users?
External database level is closest to the users.
Assume you are given a uniprocessor system with one gigabyte of memory and a 300 gigabyte disk. The OS on the machine has a demand paged virtual memory system with a local page rep
Question: (a) Discuss the difference between a composite key and a composite attribute. How would each be indicated in an E-R diagram? Support your answer with appropriate exam
Example - ALTER TABLE emp MODIFY (empno NUMBER (7));
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
what is specialization?
assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
what is attribute is attribute inheritance in dbms?
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
Differentiate between B-tree and B + tree Ans: A B-tree (or Balanced Tree) is a search tree along with additional constraints that makes sure that the tree is all the time
let us consider a table having 2200 records and the fixed size of the table to be considered as 25.then how many numbers of table is requredto perform horizontal fragmentation
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