we have to follow below rules.
i) Each name must begins with an Alphabetic character.
ii) Valid character set is a-z,A-Z,0-9 , @, #, $ and _
iii) Names are not case sensitive.
iv) Already existed names are not allowed.
v) Predefined keywords are not allowed as names.
vi) Blank spaces with in a name are not allowed.
i) Each name must begins with an Alphabetic character.
ii) Valid character set is a-z,A-Z,0-9 , @, #, $ and _
iii) Names are not case sensitive.
iv) Already existed names are not allowed.
v) Predefined keywords are not allowed as names.
vi) Blank spaces with in a name are not allowed.
