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08.03.2006 at 05:43PM PDT, ID: 21942927
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7.8

How to use a for next loop to generate dynamic SQL in a stored procedure

Asked by richardmmathis in MS SQL Server

Tags: , , , ,

I have a fairly long stored procedure in a SQL 2005 server, and I'm trying to generate some dynamic SQL to finish it up.  Unfortunately I'm having trouble finding an example in the documentation to help me finish it up.

I have a startdate and an enddate, say 8/21/2006 and 8/26/2006 and I need to step through each date and generate SQL like the following

select distinct title, hotelrooms.ID,
(select top 1 totalmarkup   from hotelrooms t1 where hotelrooms.id = t1.id order by totalmarkup   asc ) startingprice  
 from hotelrooms
inner join (select ID from hotelrooms where date = '8/21/2006' and allowsarrival = 1 and roomstock > 0) dt1 on dt1.id = hotelrooms.id
inner join (select id from hotelrooms where date = '8/22/2006' and roomstock >0) dt2 on dt2.id = hotelrooms.id
inner join (select id from hotelrooms where date = '8/23/2006' and roomstock >0) dt3 on dt3.id = hotelrooms.id
inner join (select id from hotelrooms where date = '8/24/2006' and roomstock >0) dt4 on dt4.id = hotelrooms.id
inner join (select id from hotelrooms where date = '8/25/2006' and roomstock >0) dt5 on dt5.id = hotelrooms.id
inner join (select id from hotelrooms where date = '8/26/2006' and roomstock >0) dt6 on dt6.id = hotelrooms.id
group by title, hotelrooms.ID

as you can see I'm simply repeating dt2 through dt6 with the date incremened by one.  In .net I'd simply do a for next loop incrementing the date by one by using DateAdd.  Can someone help me do this in SQL?

Thank you in advance,
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[+][-]08.04.2006 at 01:01AM PDT, ID: 17248162

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About this solution

Zone: MS SQL Server
Tags: sql, dynamic, how, looping, next
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Solution Provided By: jaanth
Participating Experts: 1
Solution Grade: A
 
 
[+][-]08.05.2006 at 12:53PM PDT, ID: 17256889

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