Oracle
1Z0-909 · Question #52
1Z0-909 Question #52: Real Exam Question with Answer & Explanation
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SQL Fundamentals
Question
You must write a statement that combines the first_name and last_name columns from the employees table as "last_name, first_name." Which two statements will do this?
Options
- ASELECT last_name + ', ' + first_name FROM employees;
- BSELECT CONCAT_WS(', ',last_name,first_name) FROM employees;
- CSELECT GROUP_CONCAT(last_name, first_name) FROM employees;
- DSELECT last_name, ` , ',first_name FROM employees;
- ESELECT CONCAT(last name,', ',first_name) FROM employees;
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Topics
#string concatenation#CONCAT function#CONCAT_WS function#SQL functions