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Oracle 1z0-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q18-Q23):

NEW QUESTION # 18
Which two statements best describe the benefits of using the WITHclause? (Choose two.)

A. It enables sessions to reuse the same query block in a SELECTstatement, if it occurs more than once in a complex query.
B. It enables sessions to store the results of a query permanently.
C. It can improve the performance of a large query by storing the result of a query block having the WITH clause in the session's temporary tablespace.
D. It enables sessions to store a query block permanently in memory and use it to create complex queries.

Answer: A,C

Explanation:
Explanation

NEW QUESTION # 19
Which normal form is a table in if it has no multi-valued attributes and no partial dependencies?

A. Fourth normal form
B. Second normal form
C. Third normal form
D. First normal form

Answer: B

NEW QUESTION # 20

For each employee in department 90 you want to display:
1. their last name
2. the number of complete weeks they have been employed
The output must be sorted by the number of weeks, starting with the longest serving employee first.Which statement will accomplish this?

A. SELECT last_name, TRUNC ( (SYSDATE - - hire_ date) 1 7) AS tenure
FROM employees
WHERE department_id = 90
ORDER BY tenure DESC;
B. SELECT last_name, ROUND( (SYSDATE - hire_ date) 1 7) AS tenure
FROM employees
WHERE department_ id = 90
ORDER BY tenure ;
C. SELECT last_name, TRUNC( (SYSDATE - hire_ date) 1 7) AS tenure
FROM employees
WHERE department_ id = 90
ORDER BY tenure ;
D. SELECT last_name, ROUND( (SYSDATE - hire_ date) 17) AS tenure
FROM employees
WHERE department_ id = 90
ORDER BY tenure DESC;

Answer: A

NEW QUESTION # 21
Examine this query:
SELECT TRUNC(ROUND(156.00, -2), -1) FROM DUAL;
What is the result?

A. 0
B. 1
C. 2
D. 3
E. 4

Answer: B

Explanation:
Reference:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions200.htm

NEW QUESTION # 22
View the exhibit and examine the structure of the STOREStable.

You must display the NAME of stores along with the ADDRESS, START_DATE, PROPERTY_PRICE, and the projected property price, which is 115% of property price.
The stores displayed must have START_DATEin the range of 36 months starting from 01-Jan-2000 and above.
Which SQL statement would get the desired output?
SELECT name, concat (address| | ','| |city| |', ', country) AS full_address,

A. start_date,
property_price, property_price*115/100
FROM stores
WHERE MONTHS_BETWEEN (start_date, '01-JAN-2000') <=36;
SELECT name, concat (address| | ','| |city| |', ', country) AS full_address,
B. start_date,
property_price, property_price*115/100
FROM stores
WHERE TO_NUMBER(start_date-TO_DATE('01-JAN-2000','DD-MON-RRRR')) <=36;
C. start_date,
property_price, property_price*115/100
FROM stores
WHERE MONTHS_BETWEEN (start_date, TO_DATE('01-JAN-2000','DD-MON-RRRR')) <=36;
D. SELECT name, address||', '||city||', '||country AS full_address, start_date, property_price, property_price*115/100 FROM stores WHERE MONTHS_BETWEEN(start_date,TO_DATE('01-JAN-2000','DD-MON-RRRR')) <=36; SELECT name, concat (address||','| |city| |', ', country) AS full_address,

Answer: C

NEW QUESTION # 23
......

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