信頼できる1z1-071テスト模擬問題集 &資格試験のリーダー &有効的1z1-071: Oracle Database SQL

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Oracle 1z1-071 Exam Syllabus Topics:

Section	Objectives
Topic 1: Data Manipulation and Schema Objects	- DML operations 1. INSERT, UPDATE, DELETE, MERGE - DDL operations 1. CREATE, ALTER, DROP tables and constraints
Topic 2: SQL Functions	- Single-row functions 1. Character, numeric, date functions - Conversion and conditional functions 1. TO_CHAR, TO_NUMBER, CASE expressions
Topic 3: SQL Retrieval	- Joins and set operations 1. UNION, INTERSECT, MINUS 2. INNER, OUTER, CROSS joins - SELECT statements and filtering data 1. WHERE clause and conditions 2. ORDER BY and row limiting
Topic 4: Subqueries and Advanced SQL	- Correlated subqueries and nested queries - Single-row and multi-row subqueries
Topic 5: Relational Database Concepts	- Tables, rows, columns, and relational model basics - Data types and database objects overview

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Oracle Database SQL 認定 1z1-071 試験問題 (Q302-Q307):

質問 # 302
View the exhibit and examine the description of the PRODUCT_INFORMATION table.

Which SQL statement would retrieve from the table the number of products having LIST_PRICE as NULL?

A. SELECT COUNT (DISTINCT list_price)FROM product_informationWHERE list_price is NULL
B. SELECT COUNT (list_price)FROM product_informationWHERE list_price is NULL
C. SELECT COUNT (NVL(list_price, 0))FROM product_informationWHERE list_price is NULL
D. SELECT COUNT (list_price)FROM product_informationWHERE list_price i= NULL

正解：C

質問 # 303
Examine this statement:

What is returned upon execution?

A. 2 rows
B. 0 rows
C. 1 row
D. an error

正解：A

質問 # 304
View the Exhibit and examine the structure of the EMPLOYEES table.
You want to display all employees and their managers having 100 as the MANAGER_ID.
You want the output in two columns: the first column would have the LAST_NAME of the managers and the second column would have LAST_NAME of the employees.

Which SQL statement would you execute?

A. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
ON m.employee_id = e.manager_id
WHERE e.managerjd=100;
B. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
WHERE m.employee_id = e.manager_id AND e.managerjd=100;
C. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
ON m.employee_id = e.manager_id
WHERE m.manager_id=100;
D. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
ON e.employee_id = m.manager_id
WHERE m.manager_id=100;

正解：A

質問 # 305
View the Exhibit and examine the structure of the ORDERStable.

Which UPDATEstatement is valid?
UPDATE orders

A. SET order_date = '12-mar-2007',
order_total IS NULL
WHERE order_id = 2455;
UPDATE orders
B. SET order_date = TO_DATE('12-mar-2007','dd-mon-yyyy'),
SET order_total = TO_NUMBER (NULL)
WHERE order_id = 2455;
C. SET order_date = '12-mar-2007',
AND order_total = TO_NUMBER(NULL)
WHERE order_id = 2455;
UPDATE orders
D. SET order_date = '12-mar-2007',
order_total = NULL
WHERE order_id = 2455;
UPDATE orders

正解：D

質問 # 306
Which statement correctly grants a system privilege?

A. GRANT CREATE SESSION TO ALL;
B. GRANT CREATE VIEW ON tablel TO used;
C. GRANT CREATE TABLE TO used ,user2;
D. GRANT EXECUTE ON prod TO PUBLIC;

正解：C

質問 # 307
......

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