How to clear all items

Hi, I have 1.02N server and i need to clear all items, all characters on all accounts, without clearing account. how can I do this? thanks

in sql query..

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**DELETE ALL INVENTORIES**
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UPDATE Character
SET Inventory=('')

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**DELETE ALL WAREHOUSES**
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UPDATE warehouse
SET Items=('')

but ofcourse, to be safe... back up your database first ;))

Quote:

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Server: Msg 260, Level 16, State 1, Line 1
Disallowed implicit conversion from data type varchar to data type varbinary, table 'MuOnline.dbo.Character', column 'Inventory'. Use the CONVERT function to run this query.

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Quote:

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Server: Msg 260, Level 16, State 1, Line 1
Disallowed implicit conversion from data type varchar to data type varbinary, table 'MuOnline.dbo.warehouse', column 'Items'. Use the CONVERT function to run this query.

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errors:( can anyone help?