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POTSQL check if specific rows sequence exists
 

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    <p>I have a table containing fields:</p> <pre><code>History_ID ORDER_ID Previous_STATUS_ID Next_STATUS_ID 0 2 null 1 1 2 1 2 2 2 2 3 3 1 null 1 4 2 3 4 5 3 null 2 6 2 4 1 7 2 1 2 8 2 2 5 9 7 3 4 </code></pre> <p>10 4 6 2 11 9 3 5</p> <p>It contains my order <code>ID</code> and <code>ID</code> of status. Basically table contains history of <code>STATUS</code> for every order.</p> <p>I would like to check if a specific order has a specific order sequence.</p> <p>Example: if order id 4 had states <code>2,4,3,1</code> then return true</p> <p>Statuses should be one after other so after 2 must be 4, after 4 is 3 and after that 1.</p> <p>Those sequences give me information (which will be displayed in my report) about flow of specific order.</p> <p>I need to check for that kind of sequences: </p> <ul> <li>1,2,3</li> <li>1,4,3,2</li> <li>4,2</li> <li>(1 or 2 or 3 or 4),5,3 - one of those 4 then 5 and then 3</li> </ul> <p>I don't have idea how to start with that kind of query :/</p> <p>EDIT:<br> My final report is a table containing information about orders like so:</p> <pre><code>Orders type Count ... Profile1 145 ... Profile2 217 ... Profile3 12 ... Profile4 2 ... </code></pre> <p>I have about 800k+ orders and my report must be done every day, so instead doing report for whole table (checking those STATES and aggregating informations from other tables) I have decided to create a report table:</p> <pre><code>Order_ID Profile Order_date Customer_profile ... 1 5 '2008-01-03' 2 4 1 '2009-04-10' 3 3 7 '2011-11-03' 1 4523 2 '2012-11-03' 5 </code></pre> <p>So that I can create a night job that will add new orders to this table with my information and I will just do a simple select from that table, to avoid aggregation. First insert will be big, but in next night it will only add new orders.</p> <p>For example look at order with ID = 2<br> Next_STATUS_ID ale like so: 1,2,3,4,1,2,5... I want to check if this order has history change like 1,2,5, so my function (select statement) should repeat 1 if it finds those ID's in that order.</p>
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    1. COCan you supply us the result you are expecting?
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    2. COMight be worth generating a string of the status, and checking against? http://stackoverflow.com/questions/2046037/sql-server-can-i-comma-delimit-multiple-rows-into-one-column
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    3. COLooking at the sample data provided, is it safe to assume that Next_STATUS_ID is the current status of the order at that history mark?
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