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What is the use of a slotted-page structure and what is the information are there in the header? The slotted-page structure is used for organizing records within a one block.
Define Hash files organization a. Hashing includes computing the address of a data item by calculating a function on the search key value. b. A hash function h is a functi
WHAT IS MEANT BY E-R MODEL
With the help of a suitable diagram gives module wise explanation of system architecture of DBMS.on..
management information system based on functional organisation
What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.
What are the disadvantages of relational approach? Disadvantages of relational approach: • Substantial hardware and system software overhead • May not fit all business models •
Define Direct file organization? The direct file organization is employed to enhance the performance in accessing the records than sequential file organization. In direct file
Which operator is used to compare a value to a list of literals values that have been specified? BETWEEN operator is used to compare a value to a list of literals values that h
why data in an RDMS need to be normalised
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