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The SQL aggregate function that gives the arithmetic mean for a specific column is _____
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Read moreThe SQL command that modifies an attribute’s values in one or more table’s rows is _____
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Read more“Assume you are using the UNION ALL operator to combine the results from two tables with identical structure, CUSTOMER and CUSTOMER_2. The CUSTOMER table contains 10 rows, while the CUSTOMER_2 table contains 7 rows. Customers Dunne and Olowski are included in the CUSTOMER table as well as in the CUSTOMER_2 table. How many records are returned when using the UNION ALL operator?”
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Read more“In Oracle, the _____ command is used to change the display for a column, for example, to place a $ in front of a numeric value”
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Read more“According to the rules of precedence, which of the following computations should be completed first?”
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Read moreThe SQL aggregate function that gives the number of rows containing non-null values for a given column is _____
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Read moreWhich of the following queries will use the given columns and column aliases from the PRODUCT table to determine the total value of inventory held on hand and display the results in a column labeled TOTVALUE?,”SELECT P_DESCRIPT, P_QOH, P_PRICE
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Read moreThe SQL command that allows a user to insert rows into a table is
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Read more“Some RDBMSs, such as Oracle, automatically _____ data changes when issuing data definition commands”
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