sql server - SQL identifying the first occurance in a list -


using sql server i'm trying label first occurrence in query result, results this...

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i can identify first of each this:

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can done case statement or similar? appreciated!

thanks

use of row_number() should enable this

select    breakfast  , case when rn = 1 1 else 0 end first_occur (        select           breakfast        , row_number() on (partition breakfast order id desc) rn        your_table      ) x

but isn't known order (i've assumed id desc), there might datetime or else in table use that.


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