OCP-1Z0-051 第148題子查詢和ANY，ALL的使用

阿新 • • 發佈：2019-01-27

A.SELECT prod_category, avg(prod_list_price)
   FROM products
GROUP BY prod_category
HAVING avg(prod_list_price) < ALL (SELECT max(prod_list_price) / 2
                                    FROM products
                                      GROUP BY prod_category);

B.SELECT prod_category, avg(prod_list_price)
FROM products
GROUP BY prod_category
HAVING avg(prod_list_price) > ANY (SELECT max(prod_list_price) / 2
                                       FROM products
                                      GROUP BY prod_category);

C.SELECT prod_category, avg(prod_list_price)
    FROM products
HAVING avg(prod_list_price) < ALL (SELECT max(prod_list_price) / 2
                                       FROM products
                                      GROUP BY prod_category);

D.SELECT prod_category, avg(prod_list_price)
   FROM products
GROUP BY prod_category
HAVING avg(prod_list_price) > ANY (SELECT max(prod_list_price) / 2
                                       FROM products);

OCP-1Z0-051 第148題子查詢和ANY，ALL的使用

A.SELECT prod_category, avg(prod_list_price) FROM products GROUP BY prod_category HAVING avg(prod_list_price) < ALL (SELECT max(prod_list_price

OCP-1Z0-051 第149題子查詢中ALL的應用

View the Exhibits and examine the structures of the COSTS and PROMOTIONS tables. Evaluate the following SQL statement:SQL>SELECT prod_id FROM cost

OCP-1Z0-051 第140題子查詢中使用GROUP BY注意事項

Examine the structure of the PRODUCTS table:Name Null Type PROD_ID NOT NULL NUMBER(4) PROD_NAME

OCP-1Z0-051 第139題子查詢的注意事項

Which three statements are true about multiple-row subqueries? (Choose three.)A. They can contain a subquery within a subquery. B. They can return multiple

OCP-1Z0-051 第141題子查詢的應用

View the Exhibit and examine the structure of CUSTOMERS and GRADES tables. You need to display names and grades of customers who have the highest credit li

OCP-1Z0-051 第136題子查詢的使用

View the Exhibit and examine the structure of the PRODUCTS table. Which two tasks would require subqueries? (Choose two.) A. Display the minimum list price

OCP-1Z0-051 第133題子查詢的用法

A選項正確。 B選項不正確，同一層可以放多個子查詢。 C選項不正確，INSERT、UPDATE、DELETE、SELECT、CREATE TABLE等這些語句中都可以使用子查詢。 D選項正確。 E選項不正確，WHERE子句中的巢狀子查詢最多能巢狀255層。聯機文件中有詳細說明： http:

OCP-1Z0-051 第142題巢狀子查詢的應用

View the Exhibit and examine the structure of the PRODUCTS table. Evaluate the following query:SQL> SELECT prod_name FROM products WHERE pr

OCP-1Z0-051 第174題事務的組成

Which statement is true regarding transactions? (Choose all that apply.) A. A transaction can consist only of a set of DML and DDL statements.B. A part or

OCP-1Z0-051 第51題 SYNONYM同義詞

Which statement is true regarding synonyms? A. Synonyms can be created only for a table. B. Synonyms are used to reference only those tables that are owned

OCP-1Z0-051 第54題

View the Exhibit and examine the structure of the CUSTOMERS table. Evaluate the query statement: SQL> SELECT cust_last_name, cust_city, cust_credit_limi

OCP-1Z0-051 第2題檢視的WITH CHECK OPTION選項

SQL> CREATE VIEW v4 2 AS SELECT prod_id, cust_id, SUM(quantity_sold) FROM SALES 3 WHERE time_id <= SYSDATE - 2*365 4 GROUP BY prod_id, cust_id

OCP-1Z0-051 第45題 SEQUENCE(序列)的注意事項

Which two statements are true about sequences created in a single instance database? (Choose two.) A. The numbers generated by a sequence can be used only

OCP-1Z0-051 第37題 drop table

一、原題 You issued the following command to drop the PRODUCTS table: SQL> DROP TABLE products; What is the implication of this command? (

OCP-1Z0-051 第43題序列的cycle選項

Evaluate the following CREATE SEQUENCE statement: CREATE SEQUENCE seq1 START WITH 100 INCREMENT BY 10 MAXVALUE 200 CYCLE NOCACHE; The SEQ1 sequence has gen

OCP-1Z0-051 第62題 where萬用字元

EMPNO ENAME ---------- ---------- 7876 ADAMS 7499 ALLEN 7698 BLAKE 7782 CLARK 7902 FORD 7900 JAMES 7566 JO

OCP-1Z0-051 第172題事務savepoint的注意事項

The SQL statements executed in a user session are as follows:SQL> CREATE TABLE product (pcode NUMBER(2), pname VARCHA

OCP-1Z0-051 第46題約束和索引

Which statements are correct regarding indexes? (Choose all that apply.)A. When a table is dropped, the corresponding indexes are automatically dropped.B.

OCP-1Z0-051 第131題 LEFT OUTER JOIN和RIGHT OUTER JOIN的用法

View the Exhibit and examine the structure of the PRODUCT, COMPONENT, and PDT_COMP tables. In PRODUCT table, PDTNO is the primary key. In COMPONENT table,

OCP-1Z0-051 第113題 GROUP BY, TO_CHAR的應用

Examine the structure of the ORDERS table:Name Null Type ORDER_ID NOT NULL NUMBER(12) ORDER_DATE