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POMS SQL Studio 2008 Query - If I am expecting 100 results but only receive 95, what is an easy way to determine what records are missing?
 

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  1. POMS SQL Studio 2008 Query - If I am expecting 100 results but only receive 95, what is an easy way to determine what records are missing?
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    <p>I have been getting requests that require me to query up to 1,000 account numbers against a several different tables.</p> <p>I am looking for an easy way to determine which account numbers are not found in the tables I am querying.</p> <p>For Example:</p> <pre><code> select a.account# a.date a.amount from transactiontable as A where a.account# in ('1','2','3','4') </code></pre> <p>If account# 3 is not in this table, the account is not shown at all and my result will look like:</p> <pre><code> Account# | Date | Amount -------------------------- 1 | 8/31 | $2.50 2 | 8/31 | $7.25 4 | 8/31 | $0.63 </code></pre> <p>With only 4 account numbers, its easy to determine what one is missing. With 1,000+ account numbers is can be very difficult if not impossible to find out which are missing. I can't use a "NOT IN" clause as that will return tens of thousands of records I am not looking for.</p> <p>I've experimented doing a variety of joins with a master table that has all account numbers, but have had no success.</p> <p>Is there a quick way in sql studio to determine what account numbers are missing? Or is there a way to code the query to get a result that looks more like this?</p> <pre><code> Account# | Date | Amount -------------------------- 1 | 8/31 | $2.50 2 | 8/31 | $7.25 3 | NULL | NULL 4 | 8/31 | $0.63 </code></pre>
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