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Oracle 1z1-071 Exam Overview:

Certification Vendor:	Oracle
Exam Name:	Oracle Database SQL
Exam Number:	1z0-071
Exam Duration:	120 minutes
Certificate Validity Period:	No expiration for this exam/certification
Real Exam Qty:	70
Related Certifications:	Oracle Database SQL Certified Associate Oracle Database Administrator Certified Associate (DBA)
Exam Price:	$245 USD
Exam Format:	Multiple Choice
Available Languages:	Japanese, Portuguese, English, Simplified Chinese, Korean
Passing Score:	63%
Sample Questions:	Oracle 1z1-071 Sample Questions
Exam Way:	Pearson VUE testing center (online proctored option available)
Pre Condition:	No formal prerequisites required, but basic knowledge of relational database concepts is recommended
Official Syllabus URL:	https://education.oracle.com/oracle-database-sql-exam

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오라클 1z0-071 시험은 오라클 데이터베이스 SQL 시험으로도 알려져 있으며, 오라클 데이터베이스를 위한 SQL 지식과 기술을 평가하는 시험입니다. 이 시험은 SQL에 대한 이해를 검증하고 이 분야에서 인증을 받고자 하는 개인들에게 이상적입니다.

최신 Oracle PL/SQL Developer Certified Associate 1z1-071 무료샘플문제 (Q319-Q324):

질문 # 319
Examine this statement which executes successfully:
Which statement will violate the CHECK constraint?

A. DELETE FROM emp80
WHERE department_id=90;
B. UPDATE emp80
SET department_id=90
WHERE department_id=80;
C. SELECT *
FROM emp80
WHERE department_id=80
D. SELECT *
FROM emp80
WHERE department_id=90;

정답：B

설명：
The CHECK constraint is generally used to limit the range of values that can be placed in a column. If a CHECK constraint exists on the department_id to only allow values such as 80 (assuming from the context provided):
* A. UPDATE emp80 SET department_id=90 WHERE department_id=80: This UPDATE statement attempts to set the department_id to 90 for rows where it is currently 80. If there is a CHECK constraint preventing department_id from being anything other than 80, this statement would violate that constraint.
Incorrect options:
* B: DELETE operations do not affect CHECK constraints as they do not involve modifying or setting column values.
* C and D: SELECT statements do not modify data and thus cannot violate data integrity constraints like CHECK constraints.

질문 # 320
You create a table by using this command:
CREATE TABLE rate_list (rate NUMBER(6,2));
Which two are true about executing statements?

A. INSERT INTO rate_list VALUES (87654. 556) inserts the value as 87654.6.
B. INSERT INTO rate_list VALUES (-10) produces an error.
C. INSERT INTO rate_list VALUES (-99.99) inserts the value as 99.99.
D. INSERT INTO rate_list VALUES (0.999) produces an error.
E. INSERT INTO rate_list VALUES (0.551) inserts the value as .55.
F. INSERT INTO rate_list VALUES (-.9) inserts the value as -.9.

정답：E,F

질문 # 321
Examine the structure of the SALES table. (Choose two.)

Examine this statement:
SQL > CREATE TABLE sales1 (prod_id, cust_id, quantity_sold, price)
AS
SELECT product_id, customer_id, quantity_sold, price
FROM sales
WHERE 1 = 2;
Which two statements are true about the SALES1 table?

A. It will not be created because of the invalid WHERE clause.
B. It will have NOT NULL constraints on the selected columns which had those constraints in the SALES table.
C. It has PRIMARY KEY and UNIQUE constraints on the selected columns which had those constraints in the SALES table.
D. It is created with no rows.
E. It will not be created because the column-specified names in the SELECT and CREATE TABLE clauses do not match.

정답：B,D

질문 # 322
MANAGER is an existing role with no privileges or roles.
EMP is an existing role containing the CREATE TABLE privilege.
EMPLOYEES is an existing table in the HR schema.
Which two commands execute successfully?

A. GRANT CREATE ANY SESSION, CREATE ANY TABLE TO manager;
B. GRANT CREATE SEQUENCE TO manager, emp;
C. GRANT CREATE TABLE, emp TO manager;
D. GRANT SELECT, INSERT ON hr.employees TO manager WITH GRANT OPTION:
E. GRANT CREATE TABLE, SELECT ON hr. employees TO manager;

정답：A,B

설명：
In Oracle SQL, roles can be granted privileges and other roles, and these privileges can then be passed on to users.
* Statement A is correct: GRANT CREATE SEQUENCE TO manager, emp; successfully grants the CREATE SEQUENCE privilege to both the manager and emp roles.
* Statement E is correct: GRANT CREATE ANY SESSION, CREATE ANY TABLE TO manager; successfully grants two system privileges to the manager role.
* Statements B, C, and D are incorrect for the following reasons:
* B is incorrect because the correct syntax to grant object privileges includes separating privileges with commas, not spaces, and the object name should be in singular form (hr.employees).
* C is incorrect because you cannot grant a role and a privilege in the same statement.
* D is incorrect because the correct syntax for granting object privileges does not include the privilege CREATE TABLE before specifying the object (hr.employees).

질문 # 323
Which two are true about queries using set operators such as UNION?

A. An expression in the first SELECT list must have a column alias for the expression
B. CHAR columns of different lengths used with a set operator retum a vAacsua mhtoe e equals the longest CHAR value.
C. Queries using set operators do not perform implicit conversion across data type groups (e.g. character, numeric)
D. In a query containing multiple set operators INTERSECT always takes precedence over UNION and UNION ALL
E. All set operators are valid on columns all data types.

정답：B,D

설명：
Set operators allow you to combine multiple queries into a single query. The key points for each option are:
A . An expression in the first SELECT list does not need to have a column alias; however, the column alias given to an expression in the first SELECT list is used as the column name of the output.
B . This statement is true. When CHAR columns of different lengths are combined with a set operator, Oracle will pad the shorter values with spaces to match the length of the longest value. This behavior is consistent with the SQL standard and Oracle's treatment of the CHAR datatype.
C . Oracle Database performs implicit conversion between compatible data types where necessary when using set operators. For example, a NUMBER can be implicitly converted to a VARCHAR2 and vice versa if the context requires it.
D . This is true. When multiple set operators are used in a single query, the INTERSECT operator takes precedence over the UNION and UNION ALL operators. This order of operation can be overridden by using parentheses.
E . Not all set operators work with all data types. For instance, LOB and LONG RAW data types cannot be used with set operators.
Reference:
Oracle Database SQL Language Reference, 12c Release 1 (12.1): "Set Operators" Oracle Database SQL Language Reference, 12c Release 1 (12.1): "Data Types"

질문 # 324
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