Oracle 1z0-071日本語受験教科書 & 1z0-071認定資格試験問題集

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Oracle 1z0-071 Exam Overview:

Certification Vendor:	Oracle
Exam Name:	Oracle Database SQL
Exam Number:	1Z0-071
Real Exam Qty:	63 - 78
Passing Score:	63%
Exam Duration:	120 minutes
Exam Format:	Multiple Select, Multiple Choice
Certificate Validity Period:	18 months
Exam Price:	US$245
Related Certifications:	Oracle Database Developer Certified Associate Oracle Database Administrator Certified Associate
Available Languages:	Simplified Chinese, Spanish, English, Japanese, Korean, Traditional Chinese
Recommended Training:	Oracle Database SQL Fundamentals Oracle Database 19c: SQL Workshop
Exam Registration:	Pearson VUE Registration Oracle University Registration
Sample Questions:	Oracle 1z0-071 Sample Questions
Exam Way:	Online proctored or Onsite at Pearson VUE test centers
Pre Condition:	No mandatory prerequisites; basic knowledge of SQL and relational databases recommended
Official Syllabus URL:	https://education.oracle.com/pexam_1Z0-071

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Oracle Database SQL試験としても知られるOracle 1Z0-071試験は、SQL開発とデータベース管理のスキルを実証したい個人向けに設計された専門的な認定試験です。この試験は、Database管理者、開発者、およびOracle Databaseを扱い、SQLの専門知識を検証したいIT専門家向けです。

Oracle Database SQL 認定 1z0-071 試験問題 (Q211-Q216):

質問 # 211
Examine the description of the BOOKS_TRANSACTIONS table:

Which two WHERE conditions give the same result?

A. WHERE borrowed_date = SYSDATE AND transaction_type ='RM' OR member_id IN ('A101','A102');
B. WHERE borrowed_date = SYSDATE AND (transaction_type ='RM' AND (member_id ='A101' OR member_id ='A102') );
C. WHERE borrowed_date = SYSDATE AND (transaction_type ='RM' AND member_id='A101' OR member_id ='A102'));
D. WHERE borrowed_date = SYSDATE AND (transaction_type ='RM' OR member_id IN ('A101','A102'));
E. WHERE (borrowed_date = SYSDATE AND transaction_type ='RM') OR member_id IN ('A101','A102');

正解：B、D

解説：
The WHERE clause in SQL filters the rows returned by the SELECT statement. The result of logical operators and conditions can change significantly depending on the use of parentheses.
Options A and E both use parentheses to ensure that borrowed_date = SYSDATE is evaluated with transaction_type ='RM' as one group and the member_id conditions as another group. The parentheses ensure that both conditions within each set of parentheses must be true for the rows to be included.
Option B is incorrect because it does not use parentheses to enforce the grouping of conditions, leading to potentially different results due to the way logical OR works.
Option C is incorrect because it has a syntax error; it is missing a parenthesis.
Option D is incorrect because it will return rows where either borrowed_date = SYSDATE AND transaction_type ='RM' is true or member_id IN ('A101','A102') is true, which is a broader condition than what's specified in options A and E.

質問 # 212
Examine the data in the ORDERS table:

Examine the data in the INVOICES table:

Examine this query:
SELECT order_ id, order_ date FROM orders
INTERSECT
SELECT order_ 1d, order_ date FROM invoices;
Which two rows will it return?

A. 4 01-FEB-2019
B. 5 01-MAR-2019
C. 3 01-JAN-2019
D. 1 <null>
E. 2 <null>
F. 3 <null>

正解：A、D

質問 # 213
View the exhibit and examine the structures of the EMPLOYEESand DEPARTMENTStables.

You want to update EMPLOYEEStable as follows:
* Update only those employees who work in Boston or Seattle (locations 2900 and 2700).
* Set department_idfor these employees to the department_idcorresponding to London (location_id
2100).
* Set the employees' salary in location_id2100 to 1.1 times the average salary of their department.
* Set the employees' commission in location_id2100 to 1.5 times the average commission of their department.
You issue the following command:

What is outcome?

A. It executes successfully and gives the desired update
B. It generates an error because multiple columns (SALARY, COMMISSION)cannot be specified together in an UPDATEstatement.
C. It generates an error because a subquery cannot have a join condition in a UPDATEstatement.
D. It executes successfully but does not give the desired update

正解：D

質問 # 214
Examine the description of the transactions table:
Which two SQL statements execute successfully?

A. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount+100 DUES FROM transactions;
B. SELECT customer id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount+100 "DUES AMOUNT" FROM transactions;
C. SELECT customer_id CUSTID, transaction_date TRANS_DATEamount+100 DUES FROM transactions;
D. SELECT customer_id AS 'CUSTOMER-ID',transaction_date AS DATE, amount+100 'DUES' from transactions;
E. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount+100 "DUES" from transactions;

正解：A、C

解説：
Examining the execution of SELECT statements in Oracle SQL requires understanding correct syntax, especially regarding aliases and string literals:
* Option A: Incorrect. Although the syntax might seem plausible, using DATE as an alias without quotes can lead to ambiguity because DATE is a reserved keyword in Oracle SQL. This might cause an error or unexpected behavior unless it is enclosed in double quotes.
* Option B: Incorrect. Single quotes are used for string literals in SQL, not for aliasing column names.
Using single quotes for aliasing, as in 'CUSTOMER-ID', 'DUES', is syntactically incorrect and will result in an error.
* Option C: Correct. This statement uses valid syntax with no reserved keywords as aliases and no misuse of string literal notation. Aliases are provided without quotes, which is acceptable as long as they are not
* reserved words or contain special characters.
* Option D: Correct. It correctly uses double quotes for aliasing, which is necessary when using reserved words like "DATE" or special characters. This is a proper use of SQL syntax for aliasing in Oracle.
* Option E: Incorrect. This statement attempts to use aliases with hyphens without enclosing them in double quotes, which leads to syntax errors. Also, customer id seems to be missing an underscore or another connector to properly reference a column name, indicating a typo or error.
For these queries, ensuring correct alias syntax and avoiding reserved keywords without appropriate quoting are key elements for successful execution.

質問 # 215
Evaluate the following query:

What would be the outcome of the above query?

A. It executes successfully and introduces an 's at the end of each promo_name in the output.
B. It produces an error because the data types are not matching.
C. It executes successfully and displays the literal " {'s start date was \> " for each row in the output.
D. It produces an error because flower braces have been used.

正解：A

質問 # 216
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1z0-071認定資格試験問題集: https://www.topexam.jp/1z0-071_shiken.html

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