امن کردن sql

[alborzhost]

[LEFT] #Block mySQL injects
 RewriteCond %{QUERY_STRING} (;|<|>|’|”|\)|%0A|%0D|%22|%27|%3C|%3E|%00).*(/\*|union|select|insert|cast|set|declare|drop|update|md5|benchmark) [NC,OR]
 
 RewriteCond %{QUERY_STRING} \.\./\.\. [OR]
 
 RewriteCond %{QUERY_STRING} (localhost|loopback|127\.0\.0\.1) [NC,OR]
 RewriteCond %{QUERY_STRING} \.[a-z0-9] [NC,OR]
 RewriteCond %{QUERY_STRING} (<|>|’|%0A|%0D|%27|%3C|%3E|%00) [NC]
 # Note: The final RewriteCond must NOT use the [OR] flag.[/LEFT] 

منظورتون اینطوری هست ؟