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WGU C170 Database Management Test Exam Review Questions with all Answers verified for accuracy Updated 2024/2025 $11.49
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WGU C170 Database Management Test Exam Review Questions with all Answers verified for accuracy Updated 2024/2025
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WGU C170 Database Management Test Exam Review Questions with all Answers verified for accuracy Updated 2024/2025 The ................ operator could be used in place of INTERSECT if the DBMS does not support it. - correct answer IN The ................__ operator could be used in place of MIN...

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  • August 30, 2024
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  • 2024/2025
  • Exam (elaborations)
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WGU C170 Database Management Test Exam
Review Questions with all Answers verified for
accuracy Updated 2024/2025


The ................ operator could be used in place of INTERSECT if the DBMS does not
support it. - correct answer IN


The ................__ operator could be used in place of MINUS if the DBMS does not
support it. - correct answer NOT IN


The ................................___ statement combines the output of two SELECT queries
and returns all results common to both queries. - correct answer INTERSECT


A(n) ................................................_ query can be used to produce a relation that
retains the duplicate rows. - correct answer UNION ALL


The ................................................ statement can be used to combine rows from two
queries, returning only the rows that appear in both sets. - correct answer INTERSECT


The syntax of the MINUS statement in Oracle is ................................___. - correct
answer query MINUS query


If the DBMS does not support the INTERSECT statement, one can use
a(n) ................__ subquery to achieve the same result. - correct answer IN


UNION, INTERSECT, and MINUS work properly only if relations are intersect-
compatible, which means that the names of the relation attributes and their data types
must be different. - correct answer False


A(n) ................................................__ view is a view that can be used to update
attributes in the base tables that are used in the view. - correct answer updatable

, A(n) ................................................___ routine pools multiple transactions into a single
batch to update a master table field in a single operation. - correct answer batch
update
In which two ways can data redundancy affect managing disk space and calculation
speed? - correct answer Additional proccessing time is needed to udate redundant
data
Redundant data takes up disk space


With which command can a database admin allow a user named Mary to query the
Patient table by executing SELECT commands on it - correct answer GRANT SELECT
ON PATIENT TO 'Mary' @ 'localhost'


What does the WHERE identify in basic SQL SELECT statement - correct answer The
rows to be included in the result set


Which condition must be in effect to use the INSERT INTO ... VALUES syntax for an
INSERT statement - correct answer The VALUES list must contain a value for each
attribute/column in the table


Which method creates an empty copy of a table and then populates it from the original
table? - correct answer CREATE TABLE newTableName LIKE tableName INSERT
INTO newTableName SELECT * FROM tableName;


ALTER TABLE tableName action [, action] ...;


What does this syntax allow? - correct answer Changing column types
Dropping indexes


What is the proper command to change a view? - correct answer ALTER VIEW

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