如何更新我的记录而不删除我当前的记录

Question

update a
set  a.book_title = a.book_title+'New Edition' 
from book a, author b, written c 
where a.book_code = c.book_code and b.author_no = c.author_no and(b.author_last like'[aco]%')

预期输出类似于“数据库新版” 我的错误是： 字符串或二进制数据将被截断。 声明已经终止。