by including "where a.date=b.date" in the criteria, you have converted from a left join to an inner join. To make sure it is still a left join, you need to include that as part of the "on" clause...
by including "where a.date=b.date" in the criteria, you have converted from a left join to an inner join. To make sure it is still a left join, you need to include that as part of the "on" clause...
from
tableA A
left join tableB B
on a.id=b.id and a.date=b.date
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