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Oracle SQL and PL/SQL Handbook: A Guide for Data Administrators, Developers, and Business Analysts
book

Oracle SQL and PL/SQL Handbook: A Guide for Data Administrators, Developers, and Business Analysts

by John Adolph Palinski
August 2002
Intermediate to advanced content levelIntermediate to advanced
528 pages
10h 12m
English
Addison-Wesley Professional
Content preview from Oracle SQL and PL/SQL Handbook: A Guide for Data Administrators, Developers, and Business Analysts

Breaks

The reports and listings we have seen thus far are called tabular reports, which consist of a series of columns and rows. If the rows have repeating values, the repeating values will be displayed on each row. It is not generally desirable to do this. A much more pleasing and effective technique is to print a column value only when it changes. This reduces the amount of data on your report and helps the reader identify pertinent information. The type of report that prints values only when they change is called a group left report.

To create a group left report, you must group your like data. This means that records with repeating column values must be placed together on the report. This is done by using the ORDER BY clause of the SELECT ...

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Publisher Resources

ISBN: 0201752948Purchase book