Here's the Right and Proven Way to Pass Oracle 1z1-071 Exam

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Oracle Database SQL Sample Questions (Q113-Q118):

NEW QUESTION # 113
Examine the description of the PRODUCT_STATUS table:

The STATUS column contains the values 'IN STOCK' or 'OUT OF STOCK' for each row Which two queries will execute successfully?

A. SELECT prod_id || q'('s not available)' 'CURRENT AVAILABILITY' FROM product_status WHERE status = 'OUT OF STOCK';
B. SELECT prod_id "CURRENT AVAILABILITY" || q'('s not available)' FROM product_status WHERE status = 'OUT OF STOCK';
C. SELECT prod_id || q'('s not available)' FROM product_status WHERE status = 'OUT OF STOCK';
D. SELECT prod_id || q'('s not available)' "CURRENT AVAILABILITY" FROM product_status WHERE status = 'OUT OF STOCK';
E. SELECT prod_id || q"'s not available" FROM product_status WHERE status = 'OUT OF STOCK';
F. SELECT prod_id || q's not available'' FROM product_status WHERE status='OUT OF STOCK';

Answer: C,D

Explanation:
Queries that will execute successfully given the PRODUCT_STATUS table:
* C. SELECT prod_id || q'('s not available)' "CURRENT AVAILABILITY" FROM product_status WHERE status = 'OUT OF STOCK';This query will execute successfully because it uses the q quote operator correctly to handle the inclusion of single quotes in the string.
* D. SELECT prod_id || q'('s not available)' FROM product_status WHERE status = 'OUT OF STOCK';Similar to the previous query, it uses the q quote operator correctly and will execute without syntax errors.
Options A, B, E, and F are incorrect because of the incorrect or incomplete use of the quote operator:
* A is incorrect because it has an additional single quote before the FROM clause.
* B is incorrect because of a missing ending single quote after the q quote operator.
* E and F are incorrect because they both use the q quote operator incorrectly; q'('s not available)' is not a valid use of the quote operator, and q"'s not available" incorrectly uses double quotes instead of single quotes.

NEW QUESTION # 114
In the PROMOTIONS table, the PROMO_ BEGIN_DATE column is of data type and the default date format is DD-MON-RR Which two statements are true about expressions using PROMO_ BEGIN_DATE in a query?

A. TONUMBER (PROMO BEGIN_DATE) - 5 will return a number
B. TODATE(PROMO BEGIN_DATE *5) will return a date
C. PROMO_ BEGIN_DATE - SYSDATE will return an error
D. PROMO_ BEGIN_DATE - 5 will return a date
E. PROMO_ BEGIN_DATE - SYSDATE will return a number

Answer: D,E

Explanation:
In Oracle SQL, when you subtract a number from a date, the result is a date. When you subtract one date from another, the result is the number of days between the two dates.
* B: PROMO_BEGIN_DATE - 5 will subtract 5 days from the PROMO_BEGIN_DATE, resulting in a new date that is 5 days earlier than PROMO_BEGIN_DATE.
* C: PROMO_BEGIN_DATE - SYSDATE will return the number of days between the PROMO_BEGIN_DATE and the current date (SYSDATE).
The incorrect options are:
* A: TONUMBER(PROMO_BEGIN_DATE) - 5 will not return a number because
PROMO_BEGIN_DATE is a date, and TONUMBER is not a valid function to convert dates to numbers in Oracle.
* D: PROMO_BEGIN_DATE - SYSDATE will not return an error; it will return the number of days between the two dates as explained above.
* E: TODATE(PROMO_BEGIN_DATE * 5) will not return a date because PROMO_BEGIN_DATE
* 5 is not a valid operation in Oracle SQL as you cannot multiply a date by a number, and TODATE is not a valid function. The correct function name is TO_DATE.
References:
* Oracle Documentation on Date Arithmetic: Database SQL Language Reference - Datetime Functions

NEW QUESTION # 115
Examine the description of the PRODUCTS table:

Which three queries use valid expressions? (Choose three.)

A. SELECT product_id, (expiry_date - delivery_date) * 2 FROM products;
B. SELECT product_id, (unit_price * 0.15 / (4.75 + 552.25)) FROM products;
C. SELECT product_id, unit_price, unit_price + surcharge FROM products;
D. SELECT product_id, unit_price | | 5 "Discount", unit_price + surcharge - discount FROM products;
E. SELECT product_id, unit_price, 5 "Discount", unit_price + surcharge - discount FROM products;
F. SELECT product_id, expiry_date * 2 FROM products;

Answer: C,E,F

NEW QUESTION # 116
Which three statements are correct regarding indexes? (Choose three.)

A. When a table is dropped, the corresponding indexes are automatically dropped.
B. Indexes should be created on columns that are frequently referenced as part of any expression.
C. A non-deferrable PRIMARY KEYor UNIQUE KEYconstraint in a table automatically attempts to create a unique index.
D. For each DML operation performed, the corresponding indexes are automatically updated.

Answer: A,C,D

Explanation:
Explanation/Reference:
References:
http://viralpatel.net/blogs/understanding-primary-keypk-constraint-in-oracle/

NEW QUESTION # 117
Examine the business rule:
Each student can work on multiple projects and each project can have multiple students.
You need to design an Entity Relationship Model (ERD) for optimal data storage and allow for generating reports in this format:
STUDENT_ID FIRST_NAME LAST_NAME PROJECT_ID PROJECT_NAME PROJECT_TASK
Which two statements are true in this scenario? (Choose two.)

A. The ERD must have a M:M relationship between the STUDENTSand PROJECTSentities that must be resolved into 1:M relationships.
B. An associative table must be created with a composite key of STUDENT_ID and PROJECT_ID, which is the foreign key linked to the STUDENTS and PROJECTS entities.
C. PROJECT_IDmust be the primary key in the PROJECTSentity and foreign key in the STUDENTSentity.
D. STUDENT_IDmust be the primary key in the STUDENTSentity and foreign key in the PROJECTSentity.
E. The ERD must have a 1:M relationship between the STUDENTSand PROJECTSentities.

Answer: A,B

Explanation:
Explanation/Reference:
References:
http://www.oracle.com/technetwork/issue-archive/2011/11-nov/o61sql-512018.html

NEW QUESTION # 118
......

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Here's the Right and Proven Way to Pass Oracle 1z1-071 Exam

1z1-071 Relevant Questions & 1z1-071 Free Sample

Oracle Database SQL Sample Questions (Q113-Q118):

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