Good idea!  Yes, I added ('-', '-') and it works with negative integers now...

To review, the table definition provided by the OP

CREATE TABLE dbo.IntChange (NumericValue INT)

INSERT INTO dbo.IntChange
VALUES (15697)
,(876)
,(1452)
,(3374)
,(894)
,(84516)

You have some reason to believe the future universe of possible inputs...

Wow all that.  Ok maybe something like this

select IcC.NumericValue,
       stuff((select ''+v.repl
          ...

You feel misled?  It's an axiomatic statement of equivalency

Your code also has zeros just disappear completely from your results.  It's never explicitly stated that zeros can't appear in these numbers.  Just in case they do, I think...

No temp table

No Cartesian product without row goal, i.e. SELECT TOP(n)

No LEFT JOIN

No ISNULL

Sorry it's not clear to me.  Maybe a more detailed example could help

What are the expected Usage and Result values for each row of the @t table?

maybe something like this

select ic.NumericValue, 
       stuff((select '' + v.repl
          ...

• This reply was modified 3 years, 11 months ago by Steve Collins.

The REPLACE method maybe is not appropriate here but I still would like to know how that works.  Anyway, given this is version 2016 maybe something like this

            
October 23, 2021 at 4:29 pm
            
#3943618

            
            
                                                
        

Hold a sec, the code above is making multiple replacements of the same character.  7 replaces 1 then 5 replaces 7.  The reason seems to be because the order of...

• This reply was modified 3 years, 11 months ago by Steve Collins.

This is one of those gray areas... or idk maybe someone can explain why this actually works.  For reasons unknown, afaik when the REPLACE function is used in the righthand...

Yes a calendar table is another workable approach.  What if the minDate and/or maxDate is other than the 1st or last day of the month?  Maybe something like this

            
October 22, 2021 at 12:40 pm
            
#3943234

            
            
                                                
        

Yes sorry.  It should've been included.  The code is from Jeff Moden's article here on SSC. It comes in handy in many places

CREATE FUNCTION [dbo].[fnTally]
/**********************************************************************************************************************
 ...

For the counting to begin at 1 maybe you could assign the value 1 to rows where the status is null.  Then UNION ALL for the additional rows with the...