How to wipe all MvP cards on database?

Code:
DELETE FROM `auction`,`cart_inventory`,`guild_storage`,`inventory`,`mail`,`storage` WHERE nameid = 4430;UPDATE `inventory` SET card0=0 WHERE card0 = 4430;UPDATE `inventory` SET card1=0 WHERE card1 = 4430;UPDATE `inventory` SET card2=0 WHERE card2 = 4430;UPDATE `inventory` SET card3=0 WHERE card3 = 4430; 
 
DELETE FROM `auction`,`cart_inventory`,`guild_storage`,`inventory`,`mail`,`storage` WHERE nameid = 4430;UPDATE `inventory` SET card0=0 WHERE card0 = 4430;UPDATE `inventory` SET card1=0 WHERE card1 = 4430;UPDATE `inventory` SET card2=0 WHERE card2 = 4430;UPDATE `inventory` SET card3=0 WHERE card3 = 4430; 

Ok, but why i need to do a update? And how to implement for all MvP?

 
update is to remove the card from the equipment

 
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