OCP-1Z0-051 補充題庫第44題 NATURAL JOIN自然連線

阿新 • • 發佈：2019-02-08

You issue the following query:
SQL>SELECT p.prod_id,prod_name,prod_list_price, quantity_sold,cust_last_name
FROM products p NATURAL JOIN sales s NATURAL JOIN customers c
WHERE prod_id =148;
Which statement is true regarding the outcome of this query?
A. It executes successfully.
B. It produces an error because the NATURAL join can be used only with two tables.
C. It produces an error because a column used in the NATURAL join cannot have a qualifier.

D. It produces an error because all columns used in the NATURAL join should have a qualifier.

答案：C

OCP-1Z0-051 補充題庫第44題 NATURAL JOIN自然連線

You issue the following query: SQL>SELECT p.prod_id,prod_name,prod_list_price, quantity_sold,cust_last_name FROM products p NATURAL JOIN sales

OCP-1Z0-051 補充題庫第5題主查詢和子查詢的注意事項

Which three statements are true regarding sub queries? (Choose three.)A. Multiple columns or expressions can be compared between the main query and sub que

OCP-1Z0-051 補充題庫第10題集合操作中的ORDER BY子句

Evaluate the following SQL statement: Which statement is true regarding the outcome of the above query?A. It produces an error because the ORDER BY clause

OCP-1Z0-051 補充題庫第26題單行函式特點

Which two statements are true regarding single row functions? (Choose two.) A. They can be nested only to two levelsB. They always return a single result r

OCP-1Z0-051 補充題庫第1題 TRUNCATE命令的使用

Evaluate the SQL statement:TRUNCATE TABLE DEPT;Which three are true about the SQL statement? (Choose three.)A. It releases the storage space used by the ta

OCP-1Z0-051 補充題庫第43題子查詢

Evaluate the following query: What would be the outcome of executing the above SQL statement? A. It produces an errorB. It shows the names of products

OCP-1Z0-051 補充題庫第37題

See the exhibit and examine the structure of the CUSTOMERS and GRADES tables: You need to display names and grades of customers who have the highest credit

OCP-1Z0-051 補充題庫第45題 CREATE VIEW

You want to create a SALE_PROD view by executing the following SQL statements: CREATE VIEW sale_prod AS SELECT p.prod_id, cust_id, SUM(quantity_sol

OCP-1Z0-051 補充題庫第23題表連線中別名的使用

FIRST_NAME DEPARTMENT_NAME ---------------------------------------- ---------------- Shelley

OCP-1Z0-051 補充題庫第24題 SYNONYM同義詞

Examine the statement: Create synonym emp for hr.employees; What happens when you issue the statement? A. An error is generated. B. You will have two ident

OCP-1Z0-051 補充題庫第27題 UNION的注意事項

Which statement is true regarding the UNION operator? A. The number of columns selected in all SELECT statements need to be the same B. Names of all column

OCP-1Z0-051 補充題庫第6題 SELECT查詢語句

A. SELECT cust_city, AVG(cust_credit_limit) FROM customers WHERE cust_city IN ('WASHINGTON', 'NEW YORK') GROUP BY cust_credit_limit, cust_city; B. SELE

OCP-1Z0-051 補充題庫第18題 DELETE語句的特性

Evaluate the following SQL statements: DELETE FROM sales; There are no other uncommitted transactions on the SALES table. Which statement is true about the

OCP-1Z0-051 補充題庫第11題 SQL和SQL*Plus的區別

Which statement correctly describes SQL and /SQL*Plus? A. Both SQL and /SQL*plus allow manipulation of values in the database. B. /SQL*Plus recognizes SQL

OCP-1Z0-051 補充題庫第22題 SYNONYM同義詞

The ORDERS TABLE belongs to the user OE. OE has granted the SELECT privilege on the ORDERS table to the user HR. Which statement would create a synonym ORD

OCP-1Z0-051 補充題庫第29題 INSERT語句中有子查詢

View the Exhibit and examine the structure of the CUSTOMERS table. NEW_CUSTOMERS is a new table with the columns CUST_ID, CUST_NAME and CUST_CITY that have

OCP-1Z0-051 第121題 NATURAL JOIN自然連線

Which two statements are true regarding the USING clause in table joins? (Choose two.) A.It can be used to join a maximum of three tables.B.It can be used

LeetCode題庫第七題（簡單系列）

題目及要求：給定一個 32 位有符號整數，將整數中的數字進行反轉。示例 1:輸入: 123 輸出: 321 示例 2:輸入: -123 輸出: -321 示例 3:輸入: 120 輸出: 21 注意:假設我們的環境只能儲存 32 位有符號整數，其數值範圍是 [−231,

LeetCode題庫第十三題（簡單系列）

題目及要求羅馬數字包含以下七種字元：I， V， X， L，C，D 和 M。字元數值 I 1 V 5 X 10 L 50 C 100 D

OCP-1Z0-051-題目解析-第16題

blog ror cau 花括號 pan 使用 data eval from 16. Evaluate the following query: SQL> SELECT promo_name q‘{‘s start date was }‘ promo_begi

OCP-1Z0-051 補充題庫 第44題 NATURAL JOIN自然連線

相關推薦

OCP-1Z0-051 補充題庫第44題 NATURAL JOIN自然連線