使用类似正则表达式的功能过滤表

Question

I have an table on SQL Server which has two columns like below.

OldValue	NewValue
ReqNo: 123456789	ReqNo: 89898989
RandomGibberish: , ReqNo:	RandomGibberish: , ReqNo: 12121212

I want to be able to filter the table if both the columns OldValue and NewValue start with "ReqNo: " followed by an 8 digit number and are an exact match to this pattern.

This would mean that the first row would be in my output but not the second row.

I know how to do this in python but still new to SQL Server and can't seem to find the right syntax.

Please help.

Answer 1

You could use SQL Server's enhanced LIKE operator here:

SELECT *
FROM yourTable
WHERE OldValue LIKE 'ReqNo: [0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]' AND
      NewValue LIKE 'ReqNo: [0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]';