Say I'm using SQL and I have EmployeeID, EmployeeSalaryI want a graph that shows the count of employees by various salary ranges:150KSo in SQL I'd use some group by statements and toss in a ...

GROUP BY Statement Write a SQL query to group employees by department and display the total salary paid in each department. GROUP BY and COUNT () Write a SQL query to count how many employees work in ...

I have a table that logs a record containing a userid, a fileid and a date, one record inserted every time that file is downloaded.I want to get the top 10 downloads by count for a given date ...

Using the following SQL statement, different results were obtained, and the same SQL query may yield different results each time it is executed. SELECT toStartOfHour (toDateTime (end_time / 1000000000 ...