问题描述
我的表有一列包含如下字符串:" HRM_APPLICATION_DELAY_IN"
My table has one column that contain strings like: " HRM_APPLICATION_DELAY_IN"
我想对这一列的每一行进行波纹管操作
I want to perform bellow operations on each row on this column
- 转换为小写
- 去除下划线_"
- 更改下划线后字符的大小写(转换为大写),例如:"hrm_Application_Delay_In"
需要转换帮助.感谢提前
Need help for conversion. Thanks for advance
推荐答案
这里是一个实现它的函数:
Here is a function to achieve it:
create function f_test ( @a varchar(max) ) returns varchar(max) as begin set @a = lower(@a) while @a LIKE '%\_%' ESCAPE '\' begin select @a = stuff(@a, v, 2, upper(substring(@a, v+1,1))) from (select charindex('_', @a) v) a end return @a end
示例:
select dbo.f_test( HRM_APPLICATION_DELAY_IN')
结果:
hrmApplicationDelayIn
这里是一个如何用函数编写语法的例子来更新你的表:
To update your table here is an example how to write the syntax with the function:
UPDATE <yourtable> SET <yourcolumn> = dbo.f_test(col) WHERE <yourcolumn> LIKE '%\_%' ESCAPE '\'