sql server - SQL Query - Query on Current Date but condition from the past -


i looking following scenario:

i have sql server db, table stores historical data. example lets use following sample set.

car, service date, findings 1234, 21/01/2001, fuel filter 1234, 23/09/2009, oil change 1234, 30/09/2015, tyres 3456, 30/09/2015, clutch

i following sample bring result shows service of car brought in on give date, e.g. 30/09/2015 if had oil change in past.

the query bring back:

1234, 30/09/2015, tyres

since car on date services had oil change.

any appreciated.

use exists clause: 

select cur.car,     cur.[service date],     cur.findings tablename cur cur.[service date] = @mydate     , exists (         select 1         tablename past         past.car = cur.car            , past.[service date] < cur.[service date]            , past.findings = 'oil change'     )

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