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POA SQL case statement or two
 

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  1. POA SQL case statement or two
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    <p>I have a <code>SELECT</code> statement that pulls these two different product strips. When I delete one of them from the website and rerun my statement I still have two rows, the first column has the <code>ARMCODE</code> twice (two results) and the second column has the description for the first but then no description for the second (because it has been deleted).</p> <p>Problem is it's still showing two results in SQL studio with the <code>ARMCODE</code>. </p> <p>If there is a <code>a.CODE_</code>,<code>a.strips</code> from intake it needs to show, if there is an <code>A.ARMCODE</code> and <code>B.DESCRIPTION</code> it needs to show. If there is only <code>A.ARMCODE</code> and <code>B.DESCRIPTION</code> and the other has been deleted why is it still showing two results with <code>a.CODE_</code> being the second result and an empty a.strips. </p> <pre><code>select a.ARMCODE, b.DESCRIPTION_ from ARE.AAS.REORDER a left outer join ARE.AAS.PTDME b on a.PTCODE=b.CODE_ where a.ARMCODE = 'ADSMANZS03' and b.MEDICAREID ='A4253' union all select a.CODE_,a.strips from event.dbo.intake a where a.CODE_ = 'ADSMANZS03' </code></pre> <p><img src="https://i.stack.imgur.com/2SNpo.jpg" alt="Strips and description, two different products, same patient"></p> <p><img src="https://i.stack.imgur.com/S5emW.jpg" alt="When i delete strips, still showing two results with empty description"></p> <p><img src="https://i.stack.imgur.com/sLxIC.jpg" alt="my case statement returning nothing"></p> <p>I started on a new statement using case and am now using some nested joins:</p> <pre><code>select case when b.ARMCODE is null then a.strips end from (select * from ev.dbo.intake a where a.CODE_ = 'ADSMANZS03') a left outer join(select a.ARMCODE, b.DESCRIPTION_ from ARE.AAS.REORDER a left outer join ARE.AAS.PTDME b on a.PTCODE=b.CODE_ where a.ARMCODE = 'ADSMANZS03' and b.MEDICAREID ='A4253') b on a.CODE_=b.ARMCODE </code></pre> <p>I'm not getting any rows or columns and it's returning (no column name) and inside NULL</p> <p>Hope that is not too confusing. Thanks in advance.</p> <p><strong>IMAGE 1</strong> Strips and description, two different products, same patient</p> <p><strong>IMAGE 2</strong> When i delete strips, still showing two results with empty description, should not show a second result.</p> <p><strong>IMAGE 3</strong> case statement</p>
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      1. POA SQL case statement or two
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    1. COcase when b.armcode is null then a.strips ELSE (something else) end
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    2. COStrips and Description are the same thing just in two different tables. If a patient has a product in strips and description it should show both or all (however many there are), if they only have a product in strips than only show the patient id and strips.
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    3. COI've read your question twice but don't quite get it. Could you clarify with example data, or see if you can reproduce it on [SQL Fiddle](http://sqlfiddle.com/)?
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      1. POA SQL case statement or two
      1. USAndomar
 

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