sql-检查列是否以特定正则表达式开头

Question

I have the following regex [0-9]\\.

I can get all of these occurrences from a specific column using:

select Col1 from tblTest where Col1 like '%[0-9]\.%'

This will return the column will contain the string: "text text text 55. text text text"

My aim is to find the "55." and wrap it with a "- -"

So essentially, after i run a query the string will then become: "text text text -55.- text text text"

How can i find the regex from that column, and replace it with "text text text -" & RegexMatch & "- text text text"?

Answer 1

Maybe just use like and replace:

declare @searchStr varchar(10) = '55.';
select replace(Col1, @searchStr, '-' + @searchStr + '-') 
from tblTest
where Col1 like ('%' + @searchStr + '%');

Keep in mind though, the predicate isn't sargable.