update [class] set parentdir='/'+parentdir+'/'那样上面的就不可以了,你可以先取出来,拼号后再update回去,或者按照下面的sql:update [class] set parentdir ='/'+convert(nvarchar,parentdir)+'/'
topic: improve the **rmation announcing system of l**ted company. summary: the **rmation announcing system of l**ted company ** the important component of the security market, safeguard market main bo...