synchronizing DB updating in servlet

hi,

i'd like to the know what code I should synchronize when updating my database. I currently just have the lock as follows in a servlet:

synchronized(this){

statement.executeUpdate();

}

but i'm wondering if this is enough and if i should synchronize my

statement.setString(x, x)

calls?

thanks

[488 byte] By [mvance213] at [2007-9-19]