Dynamics AX Trace Parser vs SQL Server Profiler

While I was working on the previous post, I noticed a strange difference between data presented in Microsoft Dynamics AX Trace Parser and SQL Server Profiler. Let's run a couple of tests.

Problem description
Trace the following select statements in Tracing Cockpit and SQL Server Profiler and compare the results:

select AccountNum from custTable; select firstOnly AccountNum from custTable;