--关键字第一次出现开始截取printsubstring('123-456-789',1,charindex('-','123-456-789')-1) 输出:123 --关键字最后一次出现开始截取printSUBSTRING('123-456-789',1,len('123-456-789')- CHARINDEX('-',REVERSE('123-456-789'))) 输出:123-456...
问字符串变化时使用Substring和Charindex的SQL ServerEN我正在做一个小项目，从字符串中提取特定的数据元素...
SELECT TOP 100 *, SUBSTRING(SourceUrl,0,CHARINDEX('&random',SourceUrl,0)) PageUrl FROM dbo.N_Order_Source ORDER BY ID DESC;
但不包含后面的空格 substring(expression,start,length) 不多说了,取子串 right(char_expr,int_...
sql server 字符串数组在sql中使用,知识点涵盖CHARINDEX,SUBSTRING,CAST,WHILE,IF等 代码 DECLARE @RecordIds nvarchar(MAX),@mint,@nint,@RecordIdint; --set @RecordIds='11,21,31,41' set@RecordIds='11' set@m=CHARINDEX(',',@RecordIds); ...
select id from t where substring(name,1,3)=’abc’–name以abc开头的id select id from t where datediff(day,createdate,’2005-11-30′)=0–’2005-11-30′生成的id 应改为: select id from t where name like ‘abc%’ select id from t where createdate>=’2005-11-30′ and createdate<...
ExampleGet your own SQL Server Search for "t" in string "Customer", and return position: SELECTCHARINDEX('t','Customer')ASMatchPosition; Try it Yourself » Definition and Usage The CHARINDEX() function searches for a substring in a string, and returns the position. ...
我用CHARINDX函数确定两个名字中间空格的位置。通过这个方法,我们可以分析ContactName列的空格位 置,这样我们可以只显示这个列的last name部分。这是显示Northwind的Customer表前5行last name的记录!select top 5 substring(ContactName,charindex(" ",ContactName)+1 ,len(ContactName)) as [Last Name] from ...
能够看到，customname包含客户的first name和last name，他们之间被一个空格隔开。用charindx函数确定两个名字中间空格的位置。通过这个方法，能够分析contactname列的空格位置，这样能够只显示这个列的last name部分。这是显示northwind的customer表前5行last name的记录 select top 5 substring(contactname,...
In this article, we are going to discuss the SUBSTRING, PATINDEX, and CHARINDEX functions of T-SQL. These functions can be used to perform pattern matching. First, let me explain the SUBSTRING function and provide examples with it. SUBSTRING SQL Server SUBSTRING() function is used to extract...