A.repeated
B.reviewed
C.reported
D.retained
第1题:
Youhavecreatedaresourceplan,DAY.Youexecutethefollowingcode:
SQL>BEGIN
DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_DIRECTIVE
(PLAN=>’DAY’,
COMMENT=>’DEPARTMENTSPLAN’,
GROUP_OR_SUBPLAN=>’DEPARTMENTS’,
CPU_P1=0);
END;
Then,youissuethefollowingcode:
SQL>BEGIN
DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_DIRECTIVE
(PLAN=>’DAY’,
COMMENT=>’DEPARTMENTSPLAN’,
GROUP_OR_SUBPLAN=>’DEVELOPERS’,
CPU_P2=100);
END;
Whatwillbetheimpactofexecutingtheabovecode?()
第2题:
第3题:
考虑下面文法G(S): S→a∣ᴧ∣(T) T→T,S∣S (1)消去G(S)的左递归。 (2)给出所有非终结符的FIRST()和FOLLOW()集合。
第4题:
如下函数的作用是以双倍行距输出文件: void double_space(ifstream &f,ofstream &t){ char c; while(______){ ______; if(c=='\n')t.put(c); } } 画线处缺失的部分是
A.f.get(c)与t.put(c)
B.f.put(c)与t.get(c)
C.t.get(c)与f.put(c)
D.t.put(c)与f.get(c)
第5题: