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Exam Code: 70-461
Exam Name: Querying Microsoft SQL Server 2012
Why is it important to use standard SQL code when possible and know what is standard
and what isn’t? (Choose all that apply.)
A. It is not important to code using standard SQL.
B. Standard SQL code is more portable between platforms.
C. Standard SQL code is more efficient.
D. Knowing what standard SQL code is makes your knowledge more portable.
Which of the following is not a violation of the relational model?
A. Using ordinal positions for columns
B. Returning duplicate rows
C. Not defining a key in a table
D. Ensuring that all attributes in the result of a query have names
What is the relationship between SQL and T-SQL?
A. T-SQL is the standard language and SQL is the dialect in Microsoft SQL Server.
B. SQL is the standard language and T-SQL is the dialect in Microsoft SQL Server.
C. Both SQL and T-SQL are standard languages.
D. Both SQL and T-SQL are dialects in Microsoft SQL Server.
Which of the following correctly represents the logical query processing order of the various query clauses?
A. SELECT > FROM > WHERE > GROUP BY > HAVING > ORDER BY
B. FROM > WHERE > GROUP BY > HAVING > SELECT > ORDER BY
C. FROM > WHERE > GROUP BY > HAVING > ORDER BY > SELECT
D. SELECT > ORDER BY > FROM > WHERE > GROUP BY > HAVING
Which of the following is invalid? (Choose all that apply.)
A. Referring to an attribute that you group by in the WHERE clause
B. Referring to an expression in the GROUP BY clause; for example, GROUP BY YEAR(orderdate)
C. In a grouped query, referring in the SELECT list to an attribute that is not part of
D. the GROUP BY list and not within an aggregate function Referring to an alias defined in the SELECT clause in the HAVING clause
What is true about the result of a query without an ORDER BY clause?
A. It is relational as long as other relational requirements are met.
B. It cannot have duplicates.
C. The order of the rows in the output is guaranteed to be the same as the insertion order.
D. The order of the rows in the output is guaranteed to be the same as that of the clustered index.
What is the importance of the ability to assign attribute aliases in T-SQL? (Choose all
A. The ability to assign attribute aliases is just an aesthetic feature.
B. An expression that is based on a computation results in no attribute name unless you assign one with an alias, and this is not relational.
C. T-SQL requires all result attributes of a query to have names.
D. Using attribute aliases, you can assign your own name to a result attribute if you need it to be different than the source attribute name.
What are the mandatory clauses in a SELECT query, according to T-SQL?
A. The FROM and SELECT clauses
B. The SELECT and WHERE clauses
C. The SELECT clause
D. The FROM and WHERE clauses
Which of the following practices are considered bad practices? (Choose all that apply.)
A. Aliasing columns by using the AS clause
B. Aliasing tables by using the AS clause
C. Not assigning column aliases when the column is a result of a computation
D. Using * in the SELECT list
Why is it important to use the appropriate type for attributes?
A. Because the type of your attribute enables you to control the formatting of the values
B. Because the type constrains the values to a certain domain of supported values
C. Because the type prevents duplicates
D. Because the type prevents NULLs
Which of the following functions would you consider using to generate surrogate keys?
(Choose all that apply.)
You need to create a view named uv_CustomerFullNames. The view must prevent the underlying structure of the customer table from being changed.
Part of the correct T-SQL statement has been provided in the answer area. Provide the complete code.
CREATE VIEW sales.uv_CustomerFullNames
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