Convert NULL date to Y/N Flag

[mwittekiend]

I am trying to convert a NULL date to a Y/N flag. It is giving me a conversion error. Here is the code. Any help is appreciated. Thanks
'CommitDateTime Flag' = (case when CommitDateTime IS NULL then 'Y'
else 'N'
end)

[MrMancunian]

What type is CommitDateTimeF lag? 'Y' and 'N' are strings, so if CommitDateTimeF lag is a boolean (or bit), you either want to use True and False or 1 and 0.

Steven