Question

我有一个包含SELECT表达式的CASE查询。我有一个＆＃39; Total＆＃39;带有文字的栏目＆＃39; GrandTotalGroupTotal＆＃39;。第二列包含文字＆＃39; GrandTotalGroup＆＃39;。要汇总列中的行＆＃39; GrandTotalGroup＆＃39;并把行，＆＃39; GrandTotalGroupTotal＆＃39;我在CASE语句中标识了正确的行，如下所示。

我需要截断最后一个＆＃39; Total＆＃39;从列值。此SELECT语句有效。我想尽可能删除硬编码值 GrandTotalGroup 。

SELECT SUG3.LineOrder AS SNo, 
       CASE WHEN (Visits IS NULL) 
            THEN (SELECT SUM(ISNULL(CTE3.Visits, 0)) 
                  FROM CTE3 
                  WHERE CTE3.GroupSetName = 'GrandTotalGroup') 
            ELSE ISNULL(Visits, 0) END AS Visits 
FROM  UDSStaffUtilizationGroups SUG3 
          LEFT OUTER JOIN CTE3 ON CTE3.UDSStaffGroupID = SUG3.UDSStaffGroupID
GROUP BY SUG3.LineOrder, SUG3.GroupSetName, SUG3.GroupTotalName, CTE3.Visits

有没有办法使用字符串函数进行更改： GrandTotalGroupTotal 至 GrandTotalGroup

Answer 1

如果我理解正确

SELECT SUBSTRING('GrandTotalGroupTotal', 1, 15)

Answer 2

Create function Replace2ndOccurance(@str varchar(500),@strTrunc varchar(100))
returns varchar(500)
as
begin
Return Replace(STUFF(STUFF(@str,patindex('%'+@strTrunc+'%',@str),len  (@strTrunc), '-'),patindex('%'+@strTrunc+'%',STUFF(@str,patindex('%'+@strTrunc+'%',@str),len(@strTrunc), '-')),len(@strTrunc),''),'-',@strTrunc)    
end
select dbo.Replace2ndOccurance('GrandTotalGroupTotal','Total')

截断SQL Server中字符串中子字符串的第二次出现

2 个答案: