1z1-071퍼펙트덤프최신문제덤프는Oracle Database SQL시험합격의유일한자료

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Oracle 1z1-071인증시험에 응시하고 싶으시다면 좋은 학습자료와 학습 가이드가 필요합니다.Oracle 1z1-071시험은 it업계에서도 아주 중요한 인증입니다. 시험패스를 원하신다면 충분한 시험준비는 필수입니다.

Oracle 1z1-071 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Retrieving Data Using SQL SELECT Statement	20%	- Arithmetic operations and NULL handling - SELECT statement syntax and usage - Column aliases, concatenation, literals and DISTINCT
Topic 2: Using SET Operators		- UNION, UNION ALL, INTERSECT, MINUS operators - Ordering results with set operations
Topic 3: Working with Time Zones and Date/Time Data		- TIMESTAMP, INTERVAL data types - Time zone conversion functions
Topic 4: Relational Database Concepts	10%	- Theoretical and physical aspects of relational databases - Relationship between database and SQL - ERD and SQL statement mapping
Topic 5: Managing Tables and Constraints		- Constraints: primary key, foreign key, unique, check, not null - Data types, creating/altering/dropping tables - Temporary and external tables
Topic 6: Using Data Dictionary Views		- Retrieve metadata and object information
Topic 7: Managing Indexes, Synonyms and Sequences		- Create and maintain indexes - Create and use sequences - Create and use synonyms
Topic 8: Using Subqueries to Solve Queries		- Correlated subqueries for update/delete - Single-row and multi-row subqueries
Topic 9: Displaying Data from Multiple Tables	15%	- Cartesian products - Self-joins and outer joins - Equijoins and non-equijoins
Topic 10: Conversion Functions and Conditional Expressions	10%	- TO_CHAR, TO_NUMBER, TO_DATE functions - Implicit and explicit data type conversion - NVL, NULLIF, COALESCE and CASE expressions
Topic 11: Controlling User Access		- Roles, granting and revoking privileges - System and object privileges
Topic 12: Restricting and Sorting Data	15%	- Operator precedence - ORDER BY clause and sorting rules - Substitution variables, DEFINE and VERIFY commands - WHERE clause and filtering conditions
Topic 13: Managing Views		- Updatable and read-only views - Create, modify and drop views
Topic 14: Aggregating Data Using Group Functions	10%	- GROUP BY and HAVING clauses - Handling NULLs in group functions - SUM, AVG, COUNT, MAX, MIN functions
Topic 15: Manipulating Data and Managing Transactions		- INSERT, UPDATE, DELETE, MERGE statements - Transaction control: COMMIT, ROLLBACK, SAVEPOINT - Multi-table inserts
Topic 16: Using Single-Row Functions to Customize Output	20%	- Nested functions usage - Character, number, and date functions

>> 1z1-071퍼펙트 덤프 최신문제 <<

1z1-071퍼펙트 덤프 최신문제 100% 합격 보장 가능한 덤프공부자료

1z1-071시험은 영어로 출제되는 만큼 시험난이도가 높다고 볼수 있습니다.하지만 1z1-071덤프만 있다면 아무리 어려운 시험도 쉬워집니다. 오르지 못할 산도 정복할수 있는게 1z1-071덤프의 우점입니다.1z1-071덤프로 시험을 패스하여 자격증을 취득하시면 굳게 닫혔던 취업문도 자신있게 두드릴수 있습니다. 1z1-071덤프를 구매하시고 공부하시면 밝은 미래를 예약한것과 같습니다.

최신 Oracle PL/SQL Developer Certified Associate 1z1-071 무료샘플문제 (Q39-Q44):

질문 # 39
The user SCOTTwho is the owner of ORDERSand ORDER_ITEMStables issues the following GRANT command:
GRANT ALL
ON orders, order_items
TO PUBLIC;
What correction needs to be done to the above statement?

A. Separate GRANTstatements are required for ORDERSand ORDER_ITEMS tables.
B. PUBLICshould be replaced with specific usernames.
C. ALLshould be replaced with a list of specific privileges.
D. WITH GRANT OPTIONshould be added to the statement.

정답：A

설명：
Explanation/Reference:
References:
http://docs.oracle.com/javadb/10.8.3.0/ref/rrefsqljgrant.html

질문 # 40
Which three actions can you perform on an existing table containing data? (Choose three.)

A. Define a default value that is automatically inserted into a column containing nulls
B. Change the default value of a column
C. Add a new column as the table's first column
D. Change a DATE column containing data to a NUMBER data type
E. Add a new NOT NULL column with a DEFAULT value
F. Increase the width of a numeric column

정답：B,C

설명：
Explanation/Reference: https://docs.oracle.com/javadb/10.8.3.0/ref/rrefsqlj24513.html

질문 # 41
Examine these statements:
CREATE TABLE dept (
deptno NUMBER PRIMARY KEY,
diname VARCHAR2(10) ,
mgr NUMBER ,
CONSTRAINT dept_fkey FOREIGN KEY(mgr) REFERENCES emp (empno));
CREATE TABLE emp (
Empno NUMBER PRIMARY KEY,
Ename VARCHAR2 (10) ,
deptno NUMBER,
CONSTRAINT emp_fkey FOREIGN KEY (deptno) REFERENCES dept (deptno) DISABLE); ALTER TABLE emp MODIFY CONSTRAINT emp_fkey ENABLE; Which two are true?

A. The Deptno column in the emp table will be able to contain nulls values.
B. All three statements execute successfully in the order shown
C. The CREATE TABLE EMP statement must precede the CREATE TABLE DEPT statement for all threestatements to execute successfully.
D. Both foreign key constraint definitions must be removed from the CREATE TABLE statements, andbe added with ALTER TABLE statements once both tables are created, for the two CREATE TABLEstatements to execute successfully in the order shown.
E. The MGR column in the DEPT table will not be able to contain NULL values.
F. The DEFT FKEY constraint definition must be removed from the CREATE TABLE DEF statement.and be added with an AITER TABLE statement once both tables are created, for the two CREATE TABLE statements to execute successfully in the order shown.

정답：A,F

질문 # 42
Examine the structure of the EMPLOYEEStable.

There is a parent/child relationship between EMPLOYEE_IDand MANAGER_ID.
You want to display the last names and manager IDs of employees who work for the same manager as the employee whose EMPLOYEE_IDis 123.
Which query provides the correct output?

A. SELECT e.last_name, e.manager_id
FROM employees e RIGHT OUTER JOIN employees m
on (e.employee_id = m.employee_id)
WHERE e.employee_id = 123;
B. SELECT m.last_name, e.manager_id
FROM employees e LEFT OUTER JOIN employees m
on (e.manager_id = m.manager_id)
WHERE e.employee_id = 123;
C. SELECT e.last_name, m.manager_id
FROM employees e LEFT OUTER JOIN employees m
on (e.employee_id = m.manager_id)
WHERE e.employee_id = 123;
D. SELECT e.last_name, m.manager_id
FROM employees e RIGHT OUTER JOIN employees m
on (e.manager_id = m.employee_id)
AND e.employee_id = 123;

정답：B

질문 # 43
View the Exhibit and examine the structure of the ORDER_ITEMS table. (Choose the best answer.)

You must select the ORDER_ID of the order that has the highest total value among all the orders in the ORDER_ITEMS table.
Which query would produce the desired result?

A. SELECT order_idFROM order_itemsWHERE (unit_price*quantity) = (SELECT MAX(unit_price*quantity)FROM order_itemsGROUP BY order_id)
B. SELECT order_idFROM order_itemsGROUP BY order_idHAVING
SUM(unit_price*quantity) = (SELECT MAX (SUM(unit_price*quantity))FROM order_items GROUP BY order_id);
C. SELECT order_idFROM order_itemsWHERE(unit_price*quantity) = (SELECT MAX (SUM(unit_price*quantity)FROM order_items) GROUP BY order_id);
D. SELECT order_idFROM order_itemsWHERE(unit_price*quantity)
MAX(unit_price*quantity)GROUP BY order_id);

정답：B

질문 # 44
......

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참고: PassTIP에서 Google Drive로 공유하는 무료, 최신 1z1-071 시험 문제집이 있습니다: https://drive.google.com/open?id=11Y5qTsZdIEE_WdDABiPTdZTjkDDKEtwj