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Question : union issue in SQL 2k
when you have more than 2 unions in a statement, there is a restriction of how many columns can be included in the query. is this issue addressed by microsoft and what is the reason for this?
Answer : union issue in SQL 2k
Select Customer ,TrsNo ,TrsDate ,Qty
FROM (
Select Customer ,TrsNo ,TrsDate ,Qty,
rn = row_number() over (partition by Customer order by TrsDate ASC)
from tbl
) SQ
Where rn=1
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