Introduction to SQL The SQL statement: SELECT Number1 + Number 2 AS Total FROM NUMBER_TABLE; adds two numbers from each row together and lists the results in a column named Total. True False True False 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 must be enclosed in double quotes? Strings Dates Column Alias All of these Strings Dates Column Alias All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following group functions ignore NULL values? COUNT MAX All of these SUM COUNT MAX All of these SUM ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A view is which of the following? A virtual table that can be accessed via SQL commands A base table that cannot be accessed via SQL commands A base table that can be accessed via SQL commands A virtual table that cannot be accessed via SQL commands A virtual table that can be accessed via SQL commands A base table that cannot be accessed via SQL commands A base table that can be accessed via SQL commands A virtual table that cannot be accessed via SQL commands ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL COUNT(field_name) tallies only those rows that contain a value; it ignores all null values. True False True False ANSWER DOWNLOAD EXAMIANS APP
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