As you might know you can setup the MS Dynamics AX 2012 database logging feature as follows:
Menu System Administration, Setup, Database and then click on “Database log setup” In this form you can add tables to be logged. Please be aware that only tables are supported which you can add via this form “Database log setup”. Please do not create e. g. customized classes or jobs which add other system tables to the table SYSDATABASELOG or SYSUSERLOG. If you ignore this hint then it might leads to system inconsistencies or even AOS crashes!