SQLSERVER截取字符串

 DECLARE @Name NVARCHAR (50)
 SET @Name = '\EXAM\061023478874'  

 DECLARE @Position INT  

 --sql first indexof
 SET @Position = CHARINDEX('.', @Name);
 SELECT SUBSTRING (@Name, @Position+1,LEN(@Name)-@Position)  

 --sql last indexof
 SET @Position =  LEN(@Name) - CHARINDEX('\', REVERSE(@Name)) + 1
 SELECT SUBSTRING (@Name, @Position+1,LEN(@Name)-@Position)