how i review twin datetime fields nonetheless replace year?

i dirt off vbscript shawl model asp query sql server 2000 database.

here's scenario:

• i have twin datetime fields called fielda fieldb.


• fieldb never have year value that's incomparable year fielda


• it is illusory twin fields have same year.

what i wish annals where fielda >= fieldb, independent year. only feign any domain only month & day.

how i this? trust t-sql date/time functions disproportionate during best.