Ali,
What you have in your original posting should work. Here is the output from a 3550 switch.
SW1-3550#vlan database
% Warning: It is recommended to configure VLAN from config mode,
as VLAN database mode is being deprecated. Please consult user
documentation for configuring VTP/VLAN in config mode.
SW1-3550(vlan)#vlan 10 name test
VLAN 10 added:
Name: test
SW1-3550(vlan)#vlan 11 name best
VLAN 11 modified:
Name: best
SW1-3550(vlan)#exit
APPLY completed.
Exiting....
BTW, don't forget to type in exit to logout to save the config.
HTH
Sundar
