Chapter 5. Subqueries

   

Some endeavors require a certain level of preparation before the main activity can commence. Cooking, for example, often involves pre-mixing sets of ingredients before they are combined. Similarly, certain types of SQL statements benefit from the creation of intermediate result sets to aid in statement execution. The structure responsible for generating intermediate result sets is the subquery. This chapter will define and illustrate the use of subqueries in SQL statements.

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Mastering Oracle SQL, 2nd Edition

ISBN: 0596006322
EAN: 2147483647

Year: 2003
Pages: 154

Authors: Sanjay Mishra, Alan Beaulieu

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