Introduction to SQL A subquery in an SQL SELECT statement: 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. has a distinct form that cannot be duplicated by a join. cannot have its results sorted using ORDER BY. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL If you are going to use a combination of three or more AND and OR conditions, it is often easier to use the NOT and NOT IN operators. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following SQL commands is used to retrieve data? DELETE JOIN SELECT INSERT DELETE JOIN SELECT INSERT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included. SINGLE UNIQUE ONLY DISTINCT SINGLE UNIQUE ONLY DISTINCT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Scalar aggregate are multiple values returned from an SQL query that includes an aggregate function. False True False True ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS