Question

I need to extract “SRN=123” (the 123 is dynamic in length, SRN= is consistent) from a column. Data could be anything, no consistent format

456 lorem limpsump SRN=123 and some
more things 3.

I’m having trouble trying to use a charindex to find the ending point of SRN=123 to get the length, any help?

SUBSTRING(t.Instructions, 
                             CharIndex('SRN=', t.Instructions) + 10, 
                             (CHARINDEX('SRN=', t.Instructions )-(CharIndex('SRN=[^0-9.-]', t.Instructions) + 10)))

Answer 1

select 'SRN='+left(stuff(@S, 1, charindex('SRN=', @S)+3, ''), patindex('%[^0-9]%', stuff(@S, 1, charindex('SRN=', @S)+3, '')+' ')-1)

https://data.stackexchange.com/stackoverflow/q/104003/