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SANS GFACT SQL QUIZ QUESTIONS AND ANSWERS
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SANS GFACT SQL QUIZ QUESTIONS ANDANSWERS
Similar to relational databases, non-relational databases also contain structured
data. ANSWER: Untrue When the nature of the data is unknown or regularly
changes, non-relational databases are used.
Data that fits specific criteria can be filtered using the 'WHERE' SQL function.
The `WHERE` clause enables us to restrict records to those that satisfy specific
criteria, such as the specified value in a database column.
'!' is a wild card character that can be used to select all data from a table.
ANSWER: Untrue The wild card character is the asterisk ('*').
The field is permanently renamed when the AS command is used. ANSWER
False: When a field is renamed using the AS command, the change is only
effective for the length of the SQL query.
Data returned by the SELECT query is arranged alphabetically. ANSWER
False: To arrange the returned data, use the SELECT and ORDER BY
commands.
You would use the JOIN clause to merge the results of two or more table
queries, right? - ANSWER True - The results from queries to various database
tables can be combined using the JOIN command, INNER, LEFT, and RIGHT.
Use the INNER JOIN command to retrieve rows from two tables that satisfy
specified criteria. - ANSWER True - To retrieve entries in both tables that
satisfy a criteria, an INNER JOIN is utilized.
Matching results from the first table and all results from the second table are
included in an LEFT JOIN; alternatively, a RIGHT JOIN command includes all
results from the second table and matching results from the first table.
Regardless of the condition of the join, the query will always return all of the
records in the first table in an LEFT JOIN - ANSWER True
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