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1. Which relational algebra operations do not need the participating tables to be union-compatible? Ans: Join is the relational algebra operations that do not need the particip
explain at least five widly used case tools
wh
differences between a classified catalog and a dictionary catalog
What is an Operand? The data on which the operation is to be performed is known as an Operand
Design a gennalization and specialization hierarchy for an automobile sales company
Types of Locks There are two necessary types of locks: Binary lock : This locking mechanism has two states for to a data item: locked or unlocked Multiple-mode loc
After the completion of the logical model the physical model is to be made. The oracle 10 G will be used as a database server and all the tables with their column are created and i
What are the reasons of bucket overflow? Explain any two methods for solving this problem. Ans: It is general for file structures to be divided into equal-length partitions, k
lock and types of lock
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