1431/2 PLS-00103: Encountered the symbol "BEGIN" when expecting one of
1431/2 PLS-00103: Encountered the symbol "BEGIN" when expecting one of
the following:
:= ; not null default character
The symbol ";" was substituted for "BEGIN" to continue.


这个错误，查看begin前是否有分号，is和begin之间的参数一定要有分号的