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Fundamentals Of Database Systems
Define foreign key. What is this concept used for?

Define foreign key. What is this concept used for?

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Define foreign key. What is this concept used for?

Students also viewed these Computer science questions

What is an opportunity cost? How is this concept used in TVM analysis, and where is it shown on a time line? Is a single number used in all situations? Explain.

What is an opportunity cost? How is this concept used in TVM analysis, and where is it shown on a time line? Is a single number used in all situations? Explain.

Define financial instruments. Explain the valuation concept used in initially recording financial instruments in financial statements.

The CondÃ© Nast Traveler Gold List for 2012 provided ratings for the top 20 small cruise ships (CondÃ© Nast Traveler website, March 1, 2012). The data shown below are the scores each ship received based upon the results from CondÃ© Nast Travelers annual Readers...

In 1980, the average price of a gallon of gas was $1.22, and in 2015 the average price was $2.52. Compare the increase in the price of a gallon of gasoline to the increase in price corresponding to the CPI. Consumer Price Index. In Exercises, use the Consumer Price Index values from Table 2.2.

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What is a transaction? How does it differ from an Update operation?

What is meant by a recursive relationship type? Give some examples of recursive relationship types.

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