Mass update MySQL

I need the command to update a column in my DB 5000 rows.
Taxcode column reads TAXC-00000001, I need to change all of them to TAXC-00000002
another words it will read non-tax items. I like to voided changing one by one.

thank you
fusiontekplusAsked:
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cyberkiwiCommented:
update tbl
set columnname = 'TAXC-00000002'
where columnname = 'TAXC-00000001'
cyberkiwiCommented:
So if your table name is invoice and column name is taxcode, then

update invoice
set taxcode = 'TAXC-00000002'
where taxcode = 'TAXC-00000001'

or to update all of them regardless of whether they previously had the value 'TAXC-00000001', then

update invoice
set taxcode = 'TAXC-00000002'

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fusiontekplusAuthor Commented:
Thank you for your fast respond to this issue, it worked just perfect>
fusiontekplusAuthor Commented:
Great Job
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MySQL Server

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