How to bucket a SQL server query

Question

I have the following table in SQL Server:

Date            Browser         Country         Time(ms)
----------------------------------------------------------
201         


        

Answer 1

With conditional aggregation you already were on the right track for one possible solution. But have the condition on the country. In a WHERE filter for the durations and stick the different durations together with UNION ALL.

SELECT '0 - 1s' [Time(ms)],
       count(CASE
               WHEN [Country] = 'US' THEN
                 1
             END) [US],
       count(CASE
               WHEN [Country] = 'JP' THEN
                 1
             END) [JP]
       FROM [dbo].[mytable]
       WHERE [Time] >= 0
             AND [Time] < 1000
UNION ALL
...
UNION ALL
SELECT '+3s' [Time(ms)],
       count(CASE
               WHEN [Country] = 'US' THEN
                 1
             END) [US],
       count(CASE
               WHEN [Country] = 'JP' THEN
                 1
             END) [JP]
       FROM [dbo].[mytable]
       WHERE [Time] >= 3000;