考题
You’re going to have a quiz ( )by another two in the ( )month.
A. followed,followedB. followed,followingC. following,followedD. following,following
考题
What's ( )job? Are ( ) British?A. your, yourB. you, yourC. your, you
考题
Merry Christmas, George! Here is a card for ________, with ________ best withes.
A.you…yourB.you…ourC.us…ourD.us…your
考题
ContentResolver用什么方法查询Content Provider提供的内容()
A.select()B.retrieve()C.query()D.execute()
考题
WhichthreevaluesarevalidparametersfortheDO_KEYbuilt-in?()
A.ENTERB.GO_ITEMC.VALIDATED.EXIT_FORME.EXECUTE_QUERY
考题
对于第7题的两个基本表,有一个SQL语句: SELECT ENO, ENAME FROM EMP WHERE DNO NOT IN (SELECT DNO FROM DEPT WHERE DNAME='金工车间');其等价的关系代数表达式是:______。A.πENO,ENAME(σDNAME≠'金工车间'(EMPDEPT))B.πENO,ENAMEC.πENO,ENAME(EMP)-πENO,ENAME (σDNAME='金工车间'(EMPDEPT))D.πENO,ENAME (EMP)-πENO,ENAME (σDNAME≠'金工车间'(EMPDEPT))
考题
在PL/SQL中定义一个可以存放雇员表(EMP)的员工名称(ENAME)的PL/SQL表类型,应该()
A.type array arr_type[emp.ename%type] index by binary_integer;B.type table arr_type[emp.ename%type] index by binary_integer;C.type arr_type is table of emp.ename%type index by binary_integer;D.type arr_type is pl_sql table of emp.ename%type index by binary_integer;
考题
找出emp表中的dept表没有的dept_no 使用Exists方式实现 即改写select * from emp a where a.dept_no not in (select b.dept_no from dept b)
考题
( ) – Is Miss White __________ English teacher, Maria?– No, she teaches __________ geography.A.your;myB.you;mineC.you;usD.your;us
考题
定义和emp表的ename具有相同数据类型的变量v_ename,正确的代码是A.v_ename ename %typeB.v_ename emp.ename %typeC.v_ename emp.ename typeD.v_ename emp.ename %rowtype