Correct Answer: SELECT first_name FROM PERSON WHERE last_name IS NULL
Explanation:
Note: This Question is unanswered, help us to find answer for this one
SQL Skill Assessment
Your Skill Level: Poor
Retake Quizzes to improve it
More SQL MCQ Questions
Which statement removes all rows from the "orders" table without removing the table structure?
What is the default join type if omitted?
What KEYWORD is used to filter groups?
Which of these is NOT a valid data type for a character string?
What is the function that combines two strings and returns the combined string?
Insert into is an example of ________ code.
A ____ file is a text file with a .sql extension that contains sql commands.
The syntax for the union query is ____.
In oracle, the ____ table contains information about the columns within tables.
To add data from an existing table to a new table, use a select command in a(n) ____ command.