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Find common data between groups

I have this data

DeveloperId   Date             remark
--------------------------------------
1             02/01/2013        Google
1             02/02/2013        MSN
1             02/03/2013        Google
1             02/02/2013        MSN
1             02/01/2013        Yahoo
2             02/01/2013        Google
2             02/02/2013        Yahoo
2             02/03/2013        Google
2             02/01/2013        Google

How to find common dates for Google and Msn and yahoo dynamically?

I would like to put such a request in the report.

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5 answers


Try the following:

with temp as
(
    SELECT Date, Remark
    From MyTable
    GROUP BY Date, Remark
)
SELECT Date
FROM temp
GROUP BY Date
Having COUNT(*) > 1


Working fiddle here: http://sqlfiddle.com/#!3/d41d8/9105

+1


source 


-- Query for dates that have all types of remarks
SELECT
  Date
FROM
  data
GROUP BY 
  Date
HAVING COUNT(DISTINCT remark) = (
  SELECT COUNT(DISTINCT remark)
  FROM data
);

Or, if this was not a requirement ...



-- Query for dates that have more than one remark.
SELECT
  Date
FROM
  data
GROUP BY 
  Date
HAVING COUNT(DISTINCT remark) > 1;

Sql Fiddle

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Common dates for three different notes:

SELECT t1.DATE
FROM TABLE T1
INNER JOIN TABLE T2
ON t1.DATE = t2.DATE
AND Remark IN ('google', 'yahoo', 'msn')
GROUP BY t1.DATE, t1.REMARK
HAVING COUNT(t1.DATE) = 3;
+1


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Select Date from data
group by remark, Date
0


source


Try:

select "Date"
from myTable
group by "Date"
where remark in ('Google','MSN','Yahoo')
having count(distinct remark) = 3
0


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