The SUBSTRING function is used to extract a part of a string. This function is available in both MS SQL Server and MySQL. The MySQL SUBSTRING function provides more functionality than MS SQL Server SUBSTRING function. In MySQL you can also use SUBSTR function which is Synonym for SUBSTRING fun...
CREATE function Get_StrArrayStrOfIndex ( @str varchar(1024), --要分割的字符串 @split varchar(10), --分隔符号 @index int --取第几个元素 ) returns varchar(1024) as begin declare @location int declare @start int declare @next int declare @seed int set @str=ltrim(rtrim(@str)) set @s...
实验环境:sql server 2008 R2 实现思路: 将整个字符串,采用substring分解为一个一个字符,然后存储至数据表中,返回的数据表则会单个字符 //函数功能:拆分字符串为单个字符,放入数据表中,并返回CREATEFUNCTION[dbo].[fn_SplitStringToCharReturnTable](@strNVARCHAR(MAX) )RETURNS@tmpTABLE([t][nvarchar](2)NULL)...
Applies to:SQL Server Returns part of the value of$sourceString, starting at the position indicated by the value of$startingLoc,and continues for the number of characters indicated by the value of$length. Syntax fn:substring($sourceString as xs:string?, $startingLoc as xs:decimal?) as xs:...
Transact-SQL reference for the SUBSTRING function. This function returns a portion of a specified character, binary, text, or image expression.
The substring() function retrieves the first 50 characters from the string value retrieved by the string(). This is a partial result: Salin ProductModelID Result --- --- 19 <Prod>Our top-of-the-line competition mountain bike.</Prod> 23 <Prod>Suitable for any type of riding, on or...
Transact-SQL Microsoft SQL Server 2005 Beta 2 **摘要:**该白皮书介绍了 Microsoft SQL Server 2005 Beta 2 中的 Transact-SQL 的几个新的增强功能。这些新功能可以改善您的表达能力、查询性能以及错误管理功能。本文重点介绍几个概念新颖且互相联系的增强功能,并且通过实际示例演示这些功能。本文并未讨论所有新增的...
Transact-SQL reference for the SUBSTRING function. This function returns a portion of a specified character, binary, text, or image expression.
set @index = charindex(@separator,@base,0) -- 当分割符存在则替换&符号开始的全部信息 -- 当分割符不存在则直接返回 RETURN (case @index when 0 then @base else replace(@base,substring(@base,@index,400),'') end) END GO 至于,这个字符串该有多大,400个字符应该足够用了。
2.1.2.244 T571, Array-returning external SQL-invoked functions 2.1.2.245 T572, Multiset-returning external SQL-invoked functions 2.1.2.246 T581, Regular expression substring function 2.1.2.247 T601, Local cursor references 2.1.2.248 T611, Elementary OLAP operations 2.1.2.249 T612, Advanced ...