Check the following link

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=309672&SiteID=1

Check the following link

http://www.sqlservercentral.com/articles/Triggers/64214/

Both are different.Null is value which is unknown.

If you want to extract the null values use is null

If you want to extract blank values use = ' '

There is no system table for error log.

Check the following links

http://searchsqlserver.techtarget.com/generic/0,295582,sid87_gci1194265,00.html

http://www.microsoft.com/downloads/details.aspx?familyid=3D5E96D9-0074-46C4-BD4F-C3EB2ABF4B66&displaylang=en

dbcc inputbuffer(spid)

You send the alert mail using the job.

Check the following link

http://www.sqlservercentral.com/articles/Advanced+Querying/fourrulesfornulls/1915/

Plz check this link:

http://www.sql-server-performance.com/tips/deadlocks_p1.aspx

SELECT distinct #Tab2.Tel

FROM #Tab1 join #Tab2 on #Tab2.Tel LIKE #Tab1.Cpt + '%'

Check the following link

http://www.sqlservercentral.com/Forums/Topic212912-169-1.aspx

The sp_dbcmptlevel stored procedure affects behaviors only for the specified database, not for the entire server. sp_dbcmptlevel provides only partial backward compatibility with earlier versions of SQL Server. A database...

It is normal. No problem. Tempsize come down after defrag.

password changed?

Check the following link

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=167068&SiteID=1