Selecting most recent date between two columns

Question

If I have a table that (among other columns) has two DATETIME columns, how would I select the most recent date from those two columns.

Example:

Answer 1

From SQL Server 2012 it's possible to use the shortcut IIF to CASE expression though the latter is SQL Standard:

SELECT ID,
       IIF(DateColA > DateColB, DateColA, DateColB) AS MostRecentDate
  FROM theTable