Program Explanation Correlated query executes inner query repeatedly, once for every row returned by outer or main query. Correlated query is a query which depends on the result of outer query. Example: Suppose we have Product table as follows: If we use a correlated subquery as follows: SELECT productname, Qty, supplierID FROM Product p1 WHERE Exists (SELECT * FROM Product p2 WHERE p2.Productid = p1.Productid and p1.SupplierId='S01'); Then result is: Correlated query has two parts: Main or outer query SELECT productname, Qty, supplierID FROM Product p1 WHERE Exists Subquery (SELECT * FROM Product p2 WHERE p2...

13th Edition

ISBN: 9780134773650

Author: Hoffer

Publisher: PEARSON

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Multiple Table

In a database, a table is used to store data in the form of rows and columns. Rows are aligned horizontally and identified by one or more values in a specific column. Columns are vertically aligned and identified by a unique column name.

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Chapter 6, Problem 6.4RQ

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Processing order of correlated subquery.

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Chapter 6 Solutions

Modern Database Management

Ch. 6 - Define each of the following terms: dynamic view...Ch. 6 - Match the following terms to the appropriate...Ch. 6 - Prob. 6.3RQ Ch. 6 - Prob. 6.4RQ Ch. 6 - Prob. 6.5RQ Ch. 6 - Explain the relationship between EXISTS and...Ch. 6 - Prob. 6.7RQ Ch. 6 - Under what conditions can a UNION clause be used?Ch. 6 - Prob. 6.9RQ Ch. 6 - Explain why it is necessary to limit the kinds of...

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