Introduction to SQL Which SQL keyword is used to retrieve only unique values? DISTINCTIVE DISTINCT DIFFERENT UNIQUE DISTINCTIVE DISTINCT DIFFERENT UNIQUE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL -92 wildcards are ____ and ____ . underscore(_); question mark (?) asterisk (*); percent sign (%) percent sign (%); underscore (_) question mark (?); asterisk (*) underscore(_); question mark (?) asterisk (*); percent sign (%) percent sign (%); underscore (_) question mark (?); asterisk (*) ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A subquery in an SQL SELECT statement: has a distinct form that cannot be duplicated by a join. cannot have its results sorted using ORDER BY. can only be used with two tables. can always be duplicated by a join. has a distinct form that cannot be duplicated by a join. cannot have its results sorted using ORDER BY. can only be used with two tables. can always be duplicated by a join. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following group functions ignore NULL values? COUNT MAX SUM All of these COUNT MAX SUM All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following is a SQL aggregate function? AVG JOIN LEFT LEN AVG JOIN LEFT LEN ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The keyword BETWEEN can be used in a WHERE clause to refer to a range of values. True False True False ANSWER DOWNLOAD EXAMIANS APP
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