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    <p>You need to actually step within your loop, you do this by repeating the fetch inside the loop:</p> <pre><code>FETCH NEXT FROM MyCursor INTO @a WHILE @@FETCH_STATUS = 0 BEGIN -- Some operations FETCH NEXT FROM MyCursor INTO @a ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ END </code></pre> <p>Otherwise, it's an infinite loop, constantly processing the first row.</p> <p>As an aside, a cursor is very rarely the right answer; perhaps you should consider trying a set-based solution instead of a cursor. If you really need a cursor, at the very least, do this:</p> <pre><code>DECLARE MyCursor CURSOR LOCAL FAST_FORWARD FOR </code></pre> <p>If the query is spinning and spinning, then it's probably being blocked. This could be due to the cursor options, so trying <code>LOCAL FAST_FORWARD</code> may help, but it's probably more than that. We can't guess what you're being blocked by but you can check for yourself. Stop the query, and in that window, do <code>SELECT @@SPID;</code> and note the number that is returned. Now, start the cursor query again, and open a new window. Run the following (replacing <code>x</code> with the <code>@@SPID</code> number):</p> <pre><code>SELECT blocking_session_id, wait_type FROM sys.dm_exec_requests WHERE session_id = x; </code></pre> <p>Now, if you get another session id in the first column, you can see what they are doing and why they are blocking you, using a similar query and a <code>DBCC</code> command:</p> <pre><code>SELECT status, command FROM sys.dm_exec_requests WHERE session_id = y; DBCC INPUTBUFFER(y); </code></pre> <p>(Again, replacing <code>y</code> with the session id from the previous query.)</p>
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    1. USAaron Bertrand
    1. USAaron Bertrand
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    1. COI know, it doesn't run the loop anyway (simply checked by prints). Please see where it gets stuck.
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      1. USuser1464922
    2. CO@user1464922 Maybe there is an error in your query. Impossible for us to tell, because you commented it out.
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    3. CONo errors outputs, I updated the code.
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