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Oracle 1z1-071 exam is a certification exam designed to test the skills and knowledge of individuals in the area of Oracle Database SQL. 1z1-071 exam is intended for individuals who work with databases and need to demonstrate their proficiency in SQL programming language. 1z1-071 Exam is a requirement for those seeking to become Oracle Certified Associates in Oracle Database 12c or 11g.

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1z1-071 certification exam is designed to validate the skills and knowledge of professionals working with Oracle Database technology. It is a crucial exam for individuals who want to prove their proficiency in SQL language and database management system. 1z1-071 Exam is designed to test the candidate's knowledge of using SQL to manage and manipulate data in the Oracle database.

Oracle Database SQL Sample Questions (Q148-Q153):

NEW QUESTION # 148
Examine the commands used to createDEPARTMENT_DETAILS andCOURSE_DETAILS:

You want to generate a list of all department IDs along with any course IDs that may have
been assigned to them.
Which SQL statement must you use?
A)

B)

C)

D)

A. Option B
B. Option D
C. Option C
D. Option A

Answer: C

NEW QUESTION # 149
Examine the commands used to create DEPARTMENT_DETAILSand COURSE_DETAILS tables:

You want to generate a list of all department IDs that do not exist in the COURSE_DETAILStable.
You execute the SQL statement:

What is the outcome?

A. It fails because the join type used is incorrect.
B. It executes successfully but displays an incorrect list.
C. It executes successfully and displays the required list.
D. It fails because the ON clause condition is not valid.

Answer: C

NEW QUESTION # 150
Examine the structure of the PROMOTIONS table: (Choose the best answer.)

Management requires a report of unique promotion costs in each promotion category.
Which query would satisfy this requirement?

A. SELECT DISTINCT promo_cost, DISTINCT promo_category FROM promotions;
B. SELECT promo_category, DISTINCT promo_cost FROM promotions
C. SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1
D. SELECT DISTINCT promo_cost, promo_category FROM promotions

Answer: C

NEW QUESTION # 151
In your session, the NLS._DAE_FORMAT is DD- MM- YYYY.There are 86400 seconds in a day.Examine this result:
DATE
02-JAN-2020
Which statement returns this?

A. SELECT TO_ CHAR(TO_ DATE('29-10-2019') + INTERVAL '3' MONTH + INTERVAL '7' DAY - INTERVAL '360' SECOND, ' DD-MON-YYYY') AS "date" FROM DUAL;
B. SELECT To CHAR(TO _DATE('29-10-2019') + INTERVAL '2' NONTH + INTERVAL '5' DAY INEERVAL '120' SECOND, ' DD-MON-YYY) AS "date" FROM DUAL;
C. SELECT-TO_CHAR(TO _DATE('29-10-2019'+ INTERVAL '2' MONTH+INTERVAL '4' DAYINTERVAL
'120' SECOND, 'DD-MON-YY') AS "daTe"
FROM DUAL;
D. SELECT-TO_CHAR(TO _DATE('29-10-2019'+ INTERVAL '2' MONTH+INTERVAL '6' DAYINTERVAL
'120' SECOND, 'DD-MON-YY') AS "daTe"
FROM DUAL;
E. SELECT TO_ CHAR(TO_ DATE('29-10-2019') +INTERVAL '2'; MONTH + INTERVAL '5'; DAY
-
INTERVAL '86410' SECOND, ' DD-MON-YYYY') AS "date"
FROM DUAL;

Answer: B

NEW QUESTION # 152
Which three statements are true about a self join?

A. It must be an equijoin.
B. The on clause can be used.
C. It must be an inner join.
D. The query must use two different aliases for the table.
E. It can be an outer join.
F. The on clause must be used.

Answer: B,D,E

Explanation:
C . True, when performing a self join, aliases are used to differentiate the same table in different contexts within the same query. This helps in comparing different rows within the same table as if they were in two separate tables.
D . True, the ON clause can be used in self joins to specify the conditions on which the join is based. This is a standard method for specifying join conditions in SQL.
F . True, a self join can be an outer join, allowing for the inclusion of rows that do not have a matching row in the same table according to the join condition. This enhances the flexibility of data analysis and reporting.
Reference:
Oracle documentation on joins: Oracle Database SQL Language Reference
Details on self joins and outer joins: Oracle Joins Tutorial

NEW QUESTION # 153
......

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