sql,sql-server , Select query and Insert using select in SQL
Select query and Insert using select in SQL
I have a select query like this :
SUM(Percentage) as SUM,
@cnt as Count,
(SUM(Percentage) / @cnt) as Percentage
Percentage column of above query looks something like this :
Then I have a query just below above query :
set FinalSearchSeral = @searchNumber,
ModifiedAt = getDate(),
PercentMatch = t.Perc
(select (SUM(Percentage) / @cnt) as Perc
GROUP BY RowNumber) t
HashedKey = HASHBYTES('MD5', @StringConcat)
order by PercentMatch desc
where clause here is not a problem as I intend to update rows only with matched hashcode code.
The results from select statement are confusing me.
Above select statement results in Percentage column with these results:
I do not understand why is there a different in percentages calculated with above queries ?
However, the results are correct with first query and something goes wrong in second one.
the result is expected and in update you need to specify which field should take which value from query I mean use
Join, try this one (as you mentioned in comments if rowid can be a join column):
set dbo.ResultsStored.FinalSearchSeral = @searchNumber,
dbo.ResultsStored.ModifiedAt = getDate(),
dbo.ResultsStored.PercentMatch = t.Perc
(select RowId,(SUM(Percentage) / @cnt) as Perc
GROUP BY RowId) t
and dbo.ResultsStored.HashedKey = HASHBYTES('MD5', @StringConcat)
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