why this happen in sql

why this happen in sql

References

Reference NO 1

http://stackoverflow.com/questions/6781381/why-do-deadlocks-happen-in-sql-server

Reference NO 2

http://thomaslarock.com/2012/10/when-does-autogrowth-happen-for-sql-server-data-files/

Reference NO 3

http://websecuritysystem.com/sql_injection.asp

Reference NO 4

http://serverfault.com/questions/159878/at-which-threshold-does-autogrow-happen-in-sql

Reference NO 5

http://dba.stackexchange.com/questions/4760/what-is-blocking-and-how-does-it-happen

Reference NO 6

http://social.msdn.microsoft.com/Forums/sqlserver/en-US/7af5b0a2-8a62-40a0-a93b-f058484e2041/action?threadDisplayName=sql-startup-what-happens

Reference NO 7

http://www.sqlservercentral.com/Forums/Topic1135587-146-1.aspx

Reference NO 8

#EANF#