I recommend u check doc/script_commands.txt and read it full
Anyway, u wont need to query. See:
Some variables are special, that is, they are already defined for you by the
scripting engine. You can see the full list in 'src/map/script_constants.hpp', which
is a file you should read, since it also allows you to replace lots of numbered
arguments for many commands with easier to read text. The special variables most
commonly used are all permanent character-based variables:
Zeny - Amount of Zeny.
Hp - Current amount of hit points.
MaxHp - Maximum amount of hit points.
Sp - Current spell points.
MaxSp - Maximum amount of spell points.
StatusPoint - Amount of status points remaining.
SkillPoint - Amount of skill points remaining.
BaseLevel - Character's base level.
JobLevel - Character's job level.
BaseExp - Amount of base experience points.
JobExp - Amount of job experience points.
NextBaseExp - Amount of base experience points needed to reach the next level.
NextJobExp - Amount of job experience points needed to reach the next level.
Weight - Amount of weight the character currently carries.
MaxWeight - Maximum weight the character can carry.
Sex - 0 if female, 1 if male.
Class - Character's job.
Upper - 0 if the character is a normal class, 1 if advanced, 2 if baby.
BaseClass - The character's 1-1 'normal' job, regardless of Upper value.
For example, this will return Job_Acolyte for Acolyte, Priest/Monk,
High Priest/Champion, and Arch Bishop/Sura. If the character has not
reached a 1-1 class, it will return Job_Novice.
BaseJob - The character's 'normal' job, regardless of Upper value.
For example, this will return Job_Acolyte for Acolyte,
Baby Acolyte, and High Acolyte.
Karma - The character's karma. Karma system is not fully functional, but
this doesn't mean this doesn't work at all. Not tested.
Manner - The character's manner rating. Becomes negative if the player
utters words forbidden through the use of 'manner.txt' client-side
file.