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Alternative Tip/Trick

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Efficient paging using SQL script

, 28 Dec 2011 CPOL
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Hi, what about such solution?DECLARE @pageNumber INTDECLARE @rowsOnPage INTSET @rowsOnPage=5SET @pageNumber=2DECLARE @totalItemsToSelect INTSET @totalItemsToSelect=@rowsOnPage * @pageNumberSELECT TOP (@rowsOnPage) * FROM MainTrans WHERE ID IN( SELECT TOP...
Hi, what about such solution?
 
DECLARE @pageNumber INT
DECLARE @rowsOnPage INT
 
SET @rowsOnPage=5
SET @pageNumber=2
 
DECLARE @totalItemsToSelect INT
SET @totalItemsToSelect=@rowsOnPage * @pageNumber
 
SELECT TOP (@rowsOnPage) * FROM MainTrans WHERE ID IN
(
    SELECT TOP (@totalItemsToSelect) ID FROM MainTrans ORDER BY ID DESC
) ORDER BY ID ASC
it looks much shorter.
 
Thanks,
Kiryl
 
P.S. of course this solution works only if you have identity column. in my opinion identity column is a must for paging, moreover this approach works for any database not only for MS SQL

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Comments and Discussions

 
GeneralReason for my vote of 4 I think this script works well, but ... PinmemberRobby Tendean28-Dec-11 17:12 
GeneralReason for my vote of 3 The alternative is pretty solid if y... PinmemberHelluin28-Dec-11 7:01 
GeneralActually: 1. TOP does not work on Oracle (at least versions ... PinmemberPablo Aliskevicius28-Dec-11 5:38 

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