Join 2 temp tables without losing multiple instances

  • I'm something of a newb when it comes to SQL so this might be an obvious question but I have to ask regardless. I've created two temporary tables with 1 column each. I'm trying to combine these two columns but I need to retain the multiple instances of each item. The point of the query is to find items that are only showing in one of the tables with the following:

    select RTRIM(batch1) AS DEADENDED

    from #deadendedmed

    group by batch1

    having count(*) = 1

    I've been using a Union all but it's eliminating the multiple instances which makes the above return all rows....any ideas?

  • Your question is pretty unclear. You talk about two temp tables, but the query you have included only has a single temp table it it. You are also indicating that you want multiple rows of the same item, but you have a GROUP BY in the query - this will eliminate duplicates.

  • That was only a portion of the query. As I was getting ready to paste the whole thing I found a pretty simple mistake (newb remember) and it works now. Thanks though.

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