Angela4eva
asked on
sql query count distinct
classes time agentname
2 8/26/13 6:00 a1
2 8/26/13 6:00 a2
1 8/26/13 6:00 a3
1 8/26/13 6:00 a1
1 8/26/13 6:00 a5
1 8/26/13 6:15 a1
1 8/26/13 6:15 a2
1 8/26/13 6:15 a3
2 8/26/13 6:15 a4
1 8/26/13 6:15 a5
2 8/26/13 6:30 a2
2 8/26/13 6:30 a3
2 8/26/13 6:30 a5
I want to count the distinct agents
so
8/26/13 6:00---4
8/26/13 6:15--5
As you can see there were 5 records for 8/26/13 6:00 but count shows only 4 as they were only 4 distinct agents.
I am using sql server 2000
2 8/26/13 6:00 a1
2 8/26/13 6:00 a2
1 8/26/13 6:00 a3
1 8/26/13 6:00 a1
1 8/26/13 6:00 a5
1 8/26/13 6:15 a1
1 8/26/13 6:15 a2
1 8/26/13 6:15 a3
2 8/26/13 6:15 a4
1 8/26/13 6:15 a5
2 8/26/13 6:30 a2
2 8/26/13 6:30 a3
2 8/26/13 6:30 a5
I want to count the distinct agents
so
8/26/13 6:00---4
8/26/13 6:15--5
As you can see there were 5 records for 8/26/13 6:00 but count shows only 4 as they were only 4 distinct agents.
I am using sql server 2000
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This is how I tested it:
2013-08-26 06:00:00 4
2013-08-26 06:15:00 5
2013-08-26 06:30:00 3
DECLARE @Table TABLE (classes tinyint, [time] smalldatetime, agentname char(2))
INSERT @Table (classes, [time], agentname)
VALUES (2, '8/26/13 6:00', 'a1'),
(2, '8/26/13 6:00', 'a2'),
(1, '8/26/13 6:00', 'a3'),
(1, '8/26/13 6:00', 'a1'),
(1, '8/26/13 6:00', 'a5'),
(1, '8/26/13 6:15', 'a1'),
(1, '8/26/13 6:15', 'a2'),
(1, '8/26/13 6:15', 'a3'),
(2, '8/26/13 6:15', 'a4'),
(1, '8/26/13 6:15', 'a5'),
(2, '8/26/13 6:30', 'a2'),
(2, '8/26/13 6:30', 'a3'),
(2, '8/26/13 6:30', 'a5')
SELECT [time],
COUNT(DISTINCT agentname)
FROM @table
GROUP BY [time]
2013-08-26 06:00:00 4
2013-08-26 06:15:00 5
2013-08-26 06:30:00 3
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TRUSTED BY
from (
select disctinct time, agentname from YourTable
) as A
group by time