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Start your free trialsujal Khatiwada
Courses Plus Student 291 PointsSQL Practice Problem
There are 267 employees and 15 with last names starting with 'A'. What does this return?
SELECT COUNT(1) FROM EMPLOYEES GROUP BY 'A';
1 Answer
Dale Severude
Full Stack JavaScript Techdegree Graduate 71,350 PointsThe GROUP BY isn't doing anything because there is not a valid table value to group by. So the number of employees gets counted, which is 267.
To count the last names beginning with 'A' the code would look something like this:
SELECT COUNT(1)
FROM EMPLOYEES
WHERE EMPLOYEES.LAST_NAME LIKE 'A%'