Mini Post: Getting A List of Connections By IP Address

Hello and welcome back to SQL Something!

I was looking at how to view current connections the other day (much like this past blog post) when I think I saw someone mention checking SQL connections by IP address. I thought this would be pretty cool if it was possible, and after some light searching I found this nice, succinct post by Glenn Berry.

I won't post the query here, but suffice to say it does the job very well.

It uses fields found in the sys.dm_exec_connections and sys.dm_exec_sessions views in order to display the client_net_address (the IP address), the host_name and the login_name as well as a count of session_id per login which provides a connection count per login. Awesome sauce.

Finally, there is a second query in the original post by Mr. Berry that gives you strictly a count by login name using only the sys.dm_exec_connections, which is neat (though honestly I'm not too sure how useful; If you can think of a great way the second query can be used, please let me know by commenting).

DISCLAIMER: As stated, I’m not an expert so please, PLEASE feel free to politely correct or comment as you see fit. Your feedback is always welcomed. :-)

Mini Post: SQL Replication - Changing The Default Snapshot Folder

Hello and good day, wherever you are! Welcome back to SQL Something!

Today's Mini Post is how to change your default snapshot folder for SQL replication. A snapshot is necessary to initially initialize the database that the replicated data is being sent to. So let's look at the process, quickly and with pictures!

Pictures make everything better.

Mini Post: Group By Month (or Year)

Hello to all of you out there! Welcome back to SQL Something!

Today's Mini Post is showing how to group by a date part (such as month, year) when given a start and end date.

Today specifically we are going to group by month in the following example:

SELECT DATENAME(month, YourDateField) MonthName,
                DATEPART(month, YourDateField) MonthNumber,
                COUNT (YourField) FieldTotal
FROM YourTable
WHERE (YourDateField >= '01/01/2013' and YourDateField < '01/01/2014')
 -- AND add other criteria here
GROUP BY DATENAME(month, YourDateField),
                     DATEPART(month, YourDateField)
ORDER BY MonthNumber;

And that's all there is too it. :-)


DISCLAIMER: As stated, I’m not an expert so please, PLEASE feel free to politely correct or comment as you see fit. Your feedback is always welcomed. :-)