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Update DAT201x Querying with Transact-SQL-final exam and quizes.txt #5

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Update DAT201x Querying with Transact-SQL-final exam and quizes.txt #5

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19 changes: 8 additions & 11 deletions DAT201x Querying with Transact-SQL-final exam and quizes.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -109,7 +109,7 @@ ORDER BY ProductCategoryID, ListPrice
ORDER BY ProductCategoryID ASC, ListPrice DESC
ORDER BY ListPrice DESC

Answer: 4
Answer: 3

7. You write the following Transact-SQL query to retrieve data from the Sales.SalesOrderHeader table:
SELECT SalesOrderID, OrderDate, Amount
Expand All @@ -118,7 +118,6 @@ FROM Sales.SalesOrderHeader

You want to limit the results to include only sales in the first calendar quarter of 2015. Which two of the following WHERE clauses can you use to accomplish this goal? (assume US formats for dates, for example 3/31/2015 represents March 31st 2015)

WHERE OrderDate BETWEEN '1/1/2015' AND '3/31/2015'
WHERE OrderDate BETWEEN '1/1/2015' AND '3/31/2015'
WHERE OrderDate > '1/1/2015' AND OrderDate < '3/31/2015'
WHERE OrderDate >= '1/1/2015' AND OrderDate <= '3/31/2015'
Expand All @@ -143,7 +142,7 @@ LEFT JOIN Inventory.Product AS p ON o.ProductID = p.ProductID;
RIGHT JOIN Inventory.Product AS p ON o.ProductID = p.ProductID;
CROSS JOIN Inventory.Product AS p;

Answer: 4
Answer: 3


9.
Expand Down Expand Up @@ -268,7 +267,6 @@ Which of the following subqueries should you use to complete the query?
(SELECT MAX(o.OrderDate)
FROM Sales.SalesOrder AS o
WHERE o.CustomerID = c.CustomerID)
-- Option 1 <div style="margin-bottom:0px;"> (SELECT MAX(o.OrderDate)</div> <div style="margin-bottom:0px;"> FROM Sales.SalesOrder AS o</div> <div style="margin-bottom:10px;"> WHERE o.CustomerID = c.CustomerID)</div> - correct
-- Option 2
(SELECT MAX(c.OrderDate)
FROM Sales.SalesOrder AS c)
Expand All @@ -281,7 +279,7 @@ Which of the following subqueries should you use to complete the query?
FROM Sales.Customer AS c)


Answer: 4
Answer: 1

15.

Expand All @@ -296,15 +294,15 @@ SELECT * FROM @tab;

When you execute the code, an error occurs. Which two of the following actions could you take to prevent the error?

Modify the INSERT statement to:
1. Modify the INSERT statement to:
INSERT INTO @tab
SELECT ProductID, InStock
FROM Inventory.Product;

Remove the GO command
2. Remove the GO command

Use a temporary table named #tab instead of the @tab variable
Add a second GO command after the final SELECT statement
3. Use a temporary table named #tab instead of the @tab variable
4. Add a second GO command after the final SELECT statement

Answer: 2,3

Expand Down Expand Up @@ -358,7 +356,6 @@ JOIN Sales.SalesOrder AS o ON o.CustomerID = c.CustomerID
GROUP BY GROUPING SETS (CountryRegion, (CountryRegion, City), ())

Which three of the following values does this query return?
A grand total of revenue for all sales., A revenue total for each CountryRegion., A revenue total for each CountryRegion and City combination., - correct
A grand total of revenue for all sales.
A revenue total for each individual customer.
A revenue total for each CountryRegion.
Expand Down Expand Up @@ -887,7 +884,7 @@ IF ERROR_NUMBER() > 50000

THROW @@ERROR;

Ans: 4
Ans: 4?



Expand Down