检测是不是数字型的数据， 两种方法 1. ISNUMERIC ( expression ) 2. PATINDEX ( ‘%pattern%‘ , expression ) 1. ISNU ...

create function f_split(@c varchar(2000),@split varchar(2)) returns @t table(col varchar(20)) as ...

select *,stuff(select ‘,’ + fieldname from table1 for xml path(”)),1,1,”) as field from table2 fo ...