如何使用sql server修剪字符串中大写字符之前的所有小写字符

如何编写SQL Server查询来修剪字符串中第一个大写字符之前的所有小写字符？ e、 g.字符串值“eaplgCostPrice”，删除“eaplg”并将“CostPrice”传递到新列

如果与某些排序规则结合使用，则它可以根据大小写运行

示例代码片段：

--
-- using a table variable for demonstration purposes
--
declare @Table table (id int identity(1,1), col varchar(30));
insert into @Table (col) values ('eaplgCostPrice'),('SellPrice'),('amount');

--
-- trim leading lowercases when needed
--
select col, 
(case
 when patindex('[a-z]%[a-z][A-Z]%', col COLLATE Latin1_General_Bin) > 0
 then substring(col, patindex('%[A-Z]%', col COLLATE Latin1_General_Bin), len(col))
 else col
 end) as trimmedCol
from @Table

col             trimmedCol
------------------  ----------------
eaplgCostPrice  CostPrice
SellPrice       SellPrice
amount          amount

结果：

--
-- using a table variable for demonstration purposes
--
declare @Table table (id int identity(1,1), col varchar(30));
insert into @Table (col) values ('eaplgCostPrice'),('SellPrice'),('amount');

--
-- trim leading lowercases when needed
--
select col, 
(case
 when patindex('[a-z]%[a-z][A-Z]%', col COLLATE Latin1_General_Bin) > 0
 then substring(col, patindex('%[A-Z]%', col COLLATE Latin1_General_Bin), len(col))
 else col
 end) as trimmedCol
from @Table

col             trimmedCol
------------------  ----------------
eaplgCostPrice  CostPrice
SellPrice       SellPrice
amount          amount

---

这可能会有帮助（SQL Server）：是的，SQL Server。字符串值“eaplgCostPrice”，删除“eaplg”并将“CostPrice”传递给新列