Exam 11: Group Functions

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The optional UNIQUE keyword instructs Oracle 11g to include only unique numeric values in its calculation.

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The WHERE clause  can \underline { \text { can } } contain group functions. _________________________

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The ____________________ function can be used to count the total records that meet a specific condition, including those that contain NULL values.

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Which of the following is a correct statement?

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The VARIANCE function can be used with ____ columns.

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Group functions can only be nested to a depth of ____________________.

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The  TOTAL \underline { \text { TOTAL } } function is used to calculate the total value stored in a numeric field for a group of records. _________________________

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The ____________________ function can be used to determine the number of rows that have non-NULL values in a specified column.

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The ____________________ clause can be used to restrict rows, but not groups.

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The GROUP BY clause can only be used when a SELECT statement includes a group function.

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Results returned from a SELECT statement that include a GROUP BY clause will present the results in  descending \underline { \text { descending } } order of the column(s) listed in the GROUP BY clause. _________________________

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Contents of the ORDERS table Contents of the ORDERS table    -Based on the contents of the ORDERS table, which of the following SELECT statements will determine the number of orders placed by each customer? -Based on the contents of the ORDERS table, which of the following SELECT statements will determine the number of orders placed by each customer?

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The ____ function can be used to determine the number of rows containing a specified value.

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The ____ function is based upon the concept of a normal distribution.

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