Multi-Table Queries with Oracle 10G XE

November 29th, 2006 | by admin | devshed.com

Queries are quantitative questions you pose to a database. Questions such as how many employees make more than 2 . a year or which employee has worked for more than two years are typical examples. In some cases to answer questions like the ones above you may go no further than looking it up in one table. However some questions may need more than one table and it is not uncommon that several tables must be used to provide the answer….
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