对于一个名为v_arr的类型为PL/SQL表类型的变量,以下对它进行引用形式正确的是()
A、v_arr[1]
B、v_arr(1)
C、v_arr<1>
D、v_arr{1}
A、v_arr[1]
B、v_arr(1)
C、v_arr<1>
D、v_arr{1}
A、A.type array arr_type[emp.ename%type] index by binary_integer; B、B.type table arr_type[emp.ename%type] index by binary_integer; C、C.type arr_type is table of emp.ename%type index by binary_integer; D、D.type arr_type is pl_sql table of emp.ename%type index by binary_integer;
A、A.sq.front= sq.rear B、B.sq.front= sq.rear+1 C、C.(sq.front +1)mod MAXSIZE= sq.rear D、D.(sq.rear+1)mod MAXSIZE= sq.front
A、sq.rear= (sq.rear+1)mod MAXSIZE; sq.elem[sq.rear]=x; B、sq.elem[sq.rear]=x; sq.rear= (sq.rear+1)mod MAXSIZE; C、sq.front= (sq.front+1)mod MAXSIZE; sq.elem[sq.front]=x; D、sq.elem[sq.front]=x; sq.front= sq.front+1;