Guessing what you meant from your fuzzy question, I would suggest:
on a.id=b.id
where b.date > a.date;
and replacing the left join with an inner join.
Guessing what you meant from your fuzzy question, I would suggest:
on a.id=b.id
where b.date > a.date;
and replacing the left join with an inner join.
Looking at your example data, there is no way to tell which dates (Services - Last Day Service) to pair up and compare; they all have the same Id.
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