如何删除客户父级分类001?

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原因分析:(客户分类级别 *** *** ***) 删除父级001分类delete CustomerClass where ccccode = 001 insert into CustomerClass(ccccode,cccname,iccgrade,bccend) select substring(ccccode,4,3) as ccccode,cccname,iccgrade-1 as iccgrade,bccend from CustomerClass where ccccode like '001%'update customer set ccccode = substring(ccccode,4,3) where ccccode like '001%'delete CustomerClass where ccccode like '001%'
问题解答:(客户分类级别 *** *** ***) 删除父级001分类delete CustomerClass where ccccode = 001 insert into CustomerClass(ccccode,cccname,iccgrade,bccend) select substring(ccccode,4,3) as ccccode,cccname,iccgrade-1 as iccgrade,bccend from CustomerClass where ccccode like '001%'update customer set ccccode = substring(ccccode,4,3) where ccccode like '001%'delete CustomerClass where ccccode like '001%'