mysql - sql query column value = column value - 1 -


i need -1 column on each row of table , wondering if there way sql rather writing in php?

on each row there "score" column , need -1 value on each row.

in php i'd use like

foreach ( $rows $row ){      $score = $row->score - 1;       $this->update_score($score, $row->id); }

but 3000+ records update, there must better way?

thanks lot help.

update table_name set score = score - 1

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