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What is B-Tree?
A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
Normal 0 false false false EN-US X-NONE X-NONE
The primary key is selected from the
Example - ALTER TABLE emp MODIFY (empno NUMBER (7));
how many hourse have been spent on a certain project
Law Associates is a large legal practice based in Sydney. You have been asked to design a data model for the practice based upon the following specification: The practice emplo
What are the DBMS languages? Explain. Ans: a) Data Definition Languages (DDL): It is employed to specify database schema for example CREATE DROP statements etc. b) Dat
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
Regional Gardens has many nurseries, including Wagga Wagga, Bathurst, Albury, Orange, and Dubbo. Each nursery is known by its campus code, eg WW, B, A, O and D respectively. Additi
each publisher has uniqe name a mial addrs are also kept on each pubisher.a publisher publish one book.a book publish y one publisher.book identified by isbn.each book writn by one
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