sql中用LTRIM ( )，RTRIM ( )。分别截断首尾空格，返回字符表达式。

例1：

DECLARE @string_to_trim varchar(60)

SET @string_to_trim = '    Four spaces are after the period in this sentence.    '

SELECT 'BEGIN|' + CHAR(13) + ltrim(rtrim(@string_to_trim))+'|END'

詳見：

 

例2：@"Select ltrim(rtrim(ProbCd)) as ProbCd,ltrim(rtrim(Descript)) as Descript from bd_ProbCdwhere substring(ProbCd,1,2) = '" + strProbCls + "' order by ProbCd"