sql server如何查询出某个字段重复出现两次以上的数据
sql server 2008数据库里如何实现按规则自动补全某个字段 先插入一列 A然后update tableAset a='IC'+right('00000'+cast(id as varchar)),6)我想一般数2113据库里的表你应该不会去修5261改的4102哇,就是查询出来的时候多一列就好了你也可以直1653接 在查询豫剧里面写select 'IC'+right('00000'+cast(id as varchar)),6)as rowsnum,*from tablea
sql server数据库如何将一个字段的内容拆分后分别取出来 编写一个函数吧例如@str='1,2,3',查询下表得到记录1,4,5,6ID TypeID1 1,2,3,4,5,6,7,8,9,10,11,122 2,33 3,7,8,94 2,65 4,56 6,7create table tb(ID int,TypeID varchar(30))insert into tb values(1,'1,2,3,4,5,6,7,8,9,10,11,12')insert into tb values(2,'2,3')insert into tb values(3,'3,7,8,9')insert into tb values(4,'2,6')insert into tb values(5,'4,5')insert into tb values(6,'6,7')go如果仅仅是一个,如@str='1'.declare@str as varchar(30)set@str='1'select*from tb where charindex(','+str+',',','+TypeID+',')>;0select*from tb where ','+TypeID+',' like '%,'+str+',%'ID TypeID1 1,2,3,4,5,6,7,8,9,10,11,12(所影响的行数为 1 行)如果包含两个,如@str='1,2'.declare@str as varchar(30)set@str='1,2'select*from tb where charindex(','+left(@str,charindex(',',@str)-1)+',',','+typeid+',')>;0 orcharindex(','+substring(@str,charindex(',',@str)+1,len(@str))+',',','+typeid+',')>;0select*from tb where ','+typeid+',' like '%,'+left(@str,charindex(',',@str)-1)+',%' or','+typeid+',' like '%,'+substring。