I used RTRIM(FORMAT(1234567.89, 'N', 'en-US')) to format a number with thousand separators and decimals. However this works only since SQL Server 2012 and above.

So 1234567.89 should be "1,234,567.89" or 10.00 should be "10.00"

Best alternative I found is LTRIM(STR(1234567.89,14,2)), but this of course does not produce thousands separators.

I tried RTRIM(REPLACE(CONVERT(VARCHAR,CONVERT(MONEY,1234567.89),1), '.00','')), but this would cut off decimals if they are #.00.

Is there another way to have the best of both worlds?