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Aggregate functions can be useful and are quite simple to use. In this chapter from SQL in 24 Hours, Sams Teach Yourself, 6th Edition, you learn how to count values in columns, count rows of data in a table, get the maximum and minimum values for a column, figure the sum of the values in a column, and figure the average value for values in a column.

Dan Hotka

In this excerpt from Oracle SQL LiveLessons (Video Training), Downloadable Version, Dan Hotka discusses analytical functions.

Dan Hotka

In this excerpt from Oracle SQL LiveLessons (Video Training), Downloadable Version, Dan Hotka shows you how to work with date functions and date format functions.

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