Explain what a database is?

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The count() function always returns a int value type what should you do if you need to count rows from a query which you know will return a value that is too large for an int value type?

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Which four data types cannot be used as a return type from a user-defined function?

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what is the use of foreginkey

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What you can do to remove data from the cache and query plans from memory for testing the performance of a query repeatedly?

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What are defaults? Is there a column to which a default can't be bound?

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State the acid rules?

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1. Using the XML Document below, with the URI “recipe.xml” define the following queries in XQuery: a.) Give the names of all breakfast in the menu. b.) Select breakfasts that have price lower than $7.00? <?xml version="1.0"?> <breakfast_menu> <food> <name>Belgian Waffles</name> <price>$5.95</price> <description> two of our famous Belgian Waffles with plenty of real maple syrup </description> <calories>650</calories> </food> <food> <name>Strawberry Belgian Waffles</name> <price>$7.95</price> <description> light Belgian waffles covered with strawberries and whipped cream </description> <calories>900</calories> </food> <food> <name>Berry-Berry Belgian Waffles</name> <price>$8.95</price> <description> light Belgian waffles covered with an assortment of fresh berries and whipped cream </description> <calories>900</calories> </food> <food> <name>French Toast</name> <price>$4.50</price> <description> thick slices made from our homemade sourdough bread </description> <calories>600</calories> </food> <food> <name>Homestyle Breakfast</name> <price>$6.95</price> <description> two eggs, bacon or sausage, toast, and our ever-popular hash browns </description> <calories>950</calories> </food> </breakfast_menu>

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How can you fix a poorly performing query?

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What are the main phases of database development?

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What is denormalization and when would you go for it?

9 Answers   NBP,

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Who are end users in dbms?

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