-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi. These fields do not use any disk space, as the data in them is derived on the fly. For example: CREATE TABLE T_EXAMPLE ( SOME_DATE DATE, JDATE COMPUTED BY EXTRACT(JULIAN FROM SOME_DATE) ); A work-around is to create a function, and reference it in every query, but storing them in the table definition is the "tidy", low-maintenance way to do it. Thanks -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFFvM59S9HxQb37XmcRAtFvAKC51YTKLLy+v+0TXMhGIyX2PmO2EQCfW8gy yIn2EBd5gR82/Hf+j5CB+rQ= =4Csd -----END PGP SIGNATURE-----
