sql server 2008 - How to select all records after a certain record within groups in sql? -


given following table structure

col1, col2, eventtype,  datetime

how can select records per grouping of col1, col2 occur after top record eventtype = 3 particular group of col1, col2.

for example following data 

col1, col2, eventtype, datetime       b       1      2012-1-1       b       3      2011-1-1       b       1      2010-1-1 c       d       1      2012-1-1 c       d       2      2011-1-1 c       d       2      2010-1-1 c       d       3      2009-1-1 c       d       2      2008-1-1 c       d       3      2007-1-1 c       d       1      2006-1-1 c       d       2      2005-1-1

i want select

col1, col2, eventtype, datetime       b       1      2012-1-1  c       d       1      2012-1-1 c       d       2      2011-1-1 c       d       2      2010-1-1

you can use max function on subquery:

select col1, col2, eventtype, datetime  thetable datetime >   (select  max(datetime)    thetable sub   eventtype = 3 , sub.col1 = a.col1 , sub.col2 = a.col2)

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