Question

Normally I would do

select top (1) * from table where id active = '1' and doc_type_id = '404'

to get the latest row.

However I’m using IN to get results back. Plus a join.

select t1.* 
  from table1 t1 left join table2 t2 on (t1.propid = t2.propid)
 where t2.caseid in ('100','101') and t1.active = '1' and b.doc_type_id = '404'

This query here returns the documents. However there are multiple documents of the same type.
And if each one has 10 docs I need only the latest one.

I would want to retrieve only the latest 1 doc for each from the database.

I hope I explained myself 🙂

Answer 1

Without seeing the return types you are going for, it sounds like you need to use a GROUP BY and/or a MAX. If that does not help solve your problem, could you please post a sample data set and what you expect?

You might even be able to use partitioning and/or ROW_NUMBER()

UPDATE BASED ON COMMENTS

WITH myCTE
AS
(
    SELECT t1.*, 
        ROW_NUMBER() OVER (PARTITION BY t2.caseid ORDER BY LastSavedDate DESC) AS RowNumber
    FROM table1 t1 
        LEFT JOIN table2 t2 
            ON t1.propid = t2.propid
    WHERE t2.caseid in ('100','101') 
        AND t1.active = '1' AND b.doc_type_id = '404'
)
SELECT * 
FROM myCTE
WHERE RowNumber = 1;

This MIGHT work for you based on your comments