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TOP n (plus one extra)?

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AskSQLTeam
Ask SQLTeam Question

0 Posts

Posted - 2004-04-20 : 10:04:04

Jerry writes "I'm getting the TOP 25 records -- no problem.
I can get a single record -- no problem.
BUT, I'd like to get the top 25 and ONE EXTRA row (to be a total of 26 records -- or all records in the case where there are 25 or less).
I've tried sub-queries and Union queries but still no luck - the only way I can do this successfully is using 2 different queries and combining the results.

In this example there are 35 records but I want just the latest 25 AND I want an additional one that is not in the top 25. I would always have 25+1 rows returned if it worked right.
Here's a sample of a failed attempt that will never return the lone record:

SELECT TOP 25 FormulaUsage.LotNumber, FormulaUsage.Qty, FormulaUsage.Expire, FormulaUsage.FormulaUsageID, FormulaUsage.FormulaID
From FormulaUsage
Where FormulaUsage.FormulaUsageID<>432
AND FormulaUsage.FormulaID =100
UNION
SELECT FormulaUsage.LotNumber, FormulaUsage.Qty, FormulaUsage.Expire, FormulaUsage.FormulaUsageID, FormulaUsage.FormulaID
From FormulaUsage
WHERE FormulaUsage.FormulaUsageID=432
AND FormulaUsage.FormulaID=100
ORDER BY FormulaUsage.FormulaUsageID DESC

In other words (in this example) "I want the first 25 records AND record 35""

LarsG
Constraint Violating Yak Guru

284 Posts

Posted - 2004-04-20 : 10:36:50

[code]
SELECT TOP 25 FormulaUsage.LotNumber, FormulaUsage.Qty, FormulaUsage.Expire, FormulaUsage.FormulaUsageID, FormulaUsage.FormulaID
From FormulaUsage
Where FormulaUsage.FormulaUsageID<>432
AND FormulaUsage.FormulaID =100
ORDER BY FormulaUsage.FormulaUsageID DESC
UNION all
SELECT FormulaUsage.LotNumber, FormulaUsage.Qty, FormulaUsage.Expire, FormulaUsage.FormulaUsageID, FormulaUsage.FormulaID
From FormulaUsage
WHERE FormulaUsage.FormulaUsageID=432
AND FormulaUsage.FormulaID=100
[/code]

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