//統計始章節和書籍的字數
update chapter set fontcount=len(cast(content as varchar(8000)));
update book set finishcount=pp.fontcount from book inner join ( select sum(fontcount) as
fontcount,c.bookid as bookid from chapter c,book b where c.bookid=b.bookid group by c.bookid )as
pp on book.bookid= pp.bookid ;
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