Question 26 :
Scalar aggregate are multiple values returned from an SQL query that includes an aggregate function.
Question 27 :
The keyword LIKE can be used in a WHERE clause to refer to a range of values.
Question 28 :
The SQL statement: SELECT Name, COUNT(*) FROM NAME_TABLE; counts the number of name rows and displays this total in a table with a single row and a single column.
Question 29 :
The SQL keyword GROUP BY instructs the DBMS to group together those rows that have the same value in a column.
Question 30 :
The wildcard asterisk (*) is the SQL-92 standard for indicating "any sequence of characters."