Question

I have this table:

I need to query the table and ask the following questions:

How many rows matching uri ‘x’ exist with unique IP addresses between ‘y’ and ‘z’ dates.

I was experimenting with COUNTs but I couldn’t seem to get the result I needed…

Answer 1

Try using COUNT(DISTINCT())

Returns a count of the number of rows with different non-NULL expr values.

So your query would be something like

SELECT COUNT( DISTINCT( user_ip ) ) 
FROM table 
WHERE timestamp BETWEEN Y and Z