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Dynamic SQL and Variables
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Information générale
Forum:
Microsoft SQL Server
Catégorie:
Stored procedures, Triggers, UDFs
Divers
Thread ID:
00235209
Message ID:
00236097
Vues:
22
Don,

I was thinking about this in class today (I'm teaching SQL Admin this week) and I think that I have a pretty good solution. Try this:

(Using the Northwind sample database)

SELECT productname FROM
(SELECT TOP 5 productname
FROM products
WHERE productname < 'konbu'
ORDER BY productname DESC) AS a
UNION
SELECT productname FROM
(SELECT TOP 6 productname
FROM products
WHERE productname >= 'konbu'
ORDER BY productname ) AS b
ORDER BY productname

I'm using the SELECT TOP clause to limit the number of rows selected. The funny syntax is because a union can only have one ORDER BY clause. Since TOP has to have an ORDER BY, I have to use SQL Server's derived table feature.

-Mike
Michael Levy
MCSD, MCDBA
ma_levy@hotmail.com
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