初始化参数audit_trail为静态参数,使用以下(____)命令可以修改其参数值。
AALTER SYSTEM SET audit_trail=db;
BALTER SYSTEM SET audit_trail=db DEFERRED;
CALTER SYSTEM SET audit_trail=db SCOPE=SPFILE;
DALTER SESSION SET audit_trail=db;
AALTER SYSTEM SET audit_trail=db;
BALTER SYSTEM SET audit_trail=db DEFERRED;
CALTER SYSTEM SET audit_trail=db SCOPE=SPFILE;
DALTER SESSION SET audit_trail=db;