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POSQL - Show offers between range
 

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  1. POSQL - Show offers between range
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    <p>I am currently working on constructing a SQL query around offers.</p> <p>Basically an offer has a begin and end date.</p> <p>Scenario 1: The user only specifies a date from.</p> <p>Solution 1: All offers are display which start on or past that day.</p> <p>Scenario 2: The user only specifies a TO date.</p> <p>Solution 2: All offers are display which end on or before that given date.</p> <p>Scenario 3: The user specifies both a TO and FROM date to search.</p> <p>The issue with solution 3 is as follows.</p> <p>OFFER - from 01-01-2012 to 03-03-2012</p> <p>SEARCH - from 01-01-2012 to the 02-02-2012</p> <p>The offer should return in the query as it falls between the two search values.</p> <p>My current query is below, however its not working as required.</p> <pre><code>CREATE PROCEDURE [dbo].[GetAllOffers] @retailer_id BIGINT, @opt_in BIGINT, @use_once BIGINT, @from_date DATETIME, @to_date DATETIME AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from interfering with SELECT statements. SET NOCOUNT ON; SELECT retr.Name, reco.Headline, reco.isOptIn, reco.isUseOnce, reco.DateValidFrom, reco.DateExpires, reco.Id AS OfferId FROM RetailerCoupon reco INNER JOIN Retailer retr ON reco.RetailerId = retr.Id WHERE (reco.RetailerId = @retailer_id OR @retailer_id IS NULL) AND (reco.isOptIn = @opt_in OR @opt_in IS NULL) AND (reco.isUseOnce = @use_once OR @use_once IS NULL) AND (reco.DateValidFrom &gt;= @from_date OR @from_date IS NULL) AND (reco.DateExpires &lt;= @to_date OR @to_date IS NULL) ORDER BY retr.Name END GO </code></pre> <p>Please note scenarios 1 &amp; 2 are covered by the query above its 3 which is causing a problem.</p> <p>Steven</p>
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    1. USswade1987
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    1. COCheck this discussion for how to select rows with a date range within a date range: http://stackoverflow.com/questions/730722/how-to-determine-if-a-date-range-occurs-any-time-within-another-date-range
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      1. USPatrikAkerstrand
    2. COHi Patrik, the problem with that solution is I can have search criteria which only has a start date OR only has an end date OR has a time period.
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    3. COSo then you need to explain what should happen for each of these cases given different search criteria.
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