ORA-01819

Error: ORA-01819: signed year precludes use of BC/AD

Causa: A date specification contained both a signed year and a B.C./A.D. indicator. If the year is specified with a sign, such as SYYYY, then B.C. or A.D. is implicit in the date and must not be entered.

Acción: Remove the B.C./A.D. indicator from the date specification.