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job scheduling for different cubes
Describe substring comparison in SQL. For the relation Person (name, address), write a SQL query that retrieves the names of people whose name starts along with ‘A' and address co
Nested Queries Let us see some more complex queries in this section. Sub-queries: Some of the basic concerns of sub-queries are: A sub-query is a SELECT statemen
external and internal mapping with examples
(a) Data warehouse can be defined as "a subject-oriented, integrated, time-variant, non-volatile collection of data" in support of management's decision making process. Explain ea
What are the typical phases of query processing
prototype of a distributed information system for a national car part retail outlet chain.
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
why shadow copy technique is used?
What is foreign key? A relation schema r1 derived from an ER schema may contain among its attributes the primary key of another relation schema r2.this attribute is known as a
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