A.set server on B.set serverecho on C.set servershow on D.set serveroutput on
A.LIST EMP B.DESC EMP C.SHOW DESC EMP D.STRUCTURE EMP
A.僅創(chuàng)建一個(gè)ORACLE實(shí)例,但并不打開數(shù)據(jù)庫 B.僅創(chuàng)建一個(gè)ORACLE實(shí)例,但并不登錄數(shù)據(jù)庫 C.啟動(dòng)sqlplus,但并不登錄數(shù)據(jù)庫 D.以nolog用戶身份啟動(dòng)sqlplus