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POGenerate missing dates + Sql Server (SET BASED)
 

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  1. POGenerate missing dates + Sql Server (SET BASED)
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    <p>I have the following </p> <pre><code>id eventid startdate enddate 1 1 2009-01-03 2009-01-05 1 2 2009-01-05 2009-01-09 1 3 2009-01-12 2009-01-15 </code></pre> <p>How to generate the missing dates pertaining to every eventid?</p> <p>Edit: <strong>The missing gaps are to be find out based on the eventid's. e.g. for eventid 1 the output should be 1/3/2009,1/4/2009,1/5/2009.. for eventtype id 2 it will be 1/5/2009, 1/6/2009... to 1/9/2009 etc</strong></p> <p>My task is to find out the missing dates between two given dates.</p> <p>Here is the whole thing which i have done so far</p> <pre><code>declare @tblRegistration table(id int primary key,startdate date,enddate date) insert into @tblRegistration select 1,'1/1/2009','1/15/2009' declare @tblEvent table(id int,eventid int primary key,startdate date,enddate date) insert into @tblEvent select 1,1,'1/3/2009','1/5/2009' union all select 1,2,'1/5/2009','1/9/2009' union all select 1,3,'1/12/2009','1/15/2009' ;with generateCalender_cte as ( select cast((select startdate from @tblRegistration where id = 1 )as datetime) DateValue union all select DateValue + 1 from generateCalender_cte where DateValue + 1 &lt;= (select enddate from @tblRegistration where id = 1) ) select DateValue as missingdates from generateCalender_cte where DateValue not between '1/3/2009' and '1/5/2009' and DateValue not between '1/5/2009' and '1/9/2009' and DateValue not between '1/12/2009'and'1/15/2009' </code></pre> <p>Actually what I am trying to do is that, I have generated a calender table and from there I am trying to find out the missing dates based on the id's</p> <p>The ideal output will be</p> <pre><code>eventid missingdates 1 2009-01-01 00:00:00.000 1 2009-01-02 00:00:00.000 3 2009-01-10 00:00:00.000 3 2009-01-11 00:00:00.000 </code></pre> <p>and also it has to be in SET BASED and the start and end dates should not be hardcoded</p> <p>Thanks in adavnce</p>
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    1. USpriyanka.sarkar
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    1. COWhat do you mean by "missing dates"?
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      1. USDavid Elizondo
    2. COI am using sql server 2005.
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      1. USpriyanka.sarkar
 

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