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Oracle 1z1-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q406-Q411):

NEW QUESTION # 406
Examine the structure of the EMPLOYEES table.

You must display the maximum and minimum salaries of employees hired 1 year ago.
Which two statements would provide the correct output? (Choose two.)

A. SELECT MIN(Salary), MAX(salary)
FROM (SELECT salary FROM
employees
WHERE hire_date < SYSDATE-365);
B. SELECT minsal, maxsal
FROM (SELECT MIN(salary) minsal, MAX(salary) maxsal
FROM employees
WHERE hire_date < SYSDATE-365)
GROUP BY maxsal, minsal;
C. SELECT minsal, maxsal
FROM (SELECT MIN(salary) minsal, MAX(salary) maxsal
FROM employees
WHERE hire_date < SYSDATE-365
GROUP BY MIN(salary), MAX(salary);
D. SELECT MIN(Salary) minsal, MAX(salary) maxsal
FROM employees
WHERE hire_date < SYSDATE-365
GROUP BY MIN(salary), MAX(salary);

Answer: A,B

NEW QUESTION # 407
View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables. (Choose the best answer.)

You executed this UPDATE statement:

Which statement is true regarding the execution?

A. It would not execute because a subquery cannot be used in the WHERE clause of an UPDATE statement.
B. It would not execute because a SELECT statement cannot be used in place of a table name.
C. It would execute and restrict modifications to the columns specified in the SELECT statement.
D. It would not execute because two tables cannot be referenced in a single UPDATE statement.

Answer: C

NEW QUESTION # 408
View the Exhibit and examine the structure of the PRODUCT_INFORMATION and INVENTORIES tables.

You have a requirement from the supplies department to give a list containing PRODUCT_ID, SUPPLIER_ID, and QUANTITY_ON_HAND for all the products wherein QUANTITY_ON_HAND is less than five.
Which two SQL statements can accomplish the task? (Choose two.)

A. SELECT i.product_id, i.quantity_on_hand, pi.supplier_idFROM product_information pi JOIN inventories iON (pi.product_id=i.product_id)USING (product_id) AND quantity_on_hand < 5;
B. SELECT i.product_id, i.quantity_on_hand, pi.supplier_idFROM product_information pi JOIN inventories iON (pi.product_id=i.product_id)WHERE quantity_on_hand < 5;
C. SELECT i.product_id, i.quantity_on_hand, pi.supplier_idFROM product_information pi JOIN inventories iON (pi.product_id=i.product_id) AND quantity_on_hand < 5;
D. SELECT product_id, quantity_on_hand, supplier_idFROM
product_informationNATURAL JOIN inventories AND quantity_on_hand < 5;

Answer: B,C

NEW QUESTION # 409
View the exhibit and examine the descriptions of the DEPTand LOCATIONStables.

You want to update the CITYcolumn of the DEPTtable for all the rows with the corresponding value in the CITYcolumn of the LOCATIONStable for each department.
Which SQL statement would you execute to accomplish the task?

A. UPDATE dept d
SET city = (SELECT city
FROM locations l)
WHERE d.location_id = l.location_id;
B. UPDATE dept d
SET city = ANY (SELECT city
FROM locations l)
C. UPDATE dept d
SET city = ALL (SELECT city
FROM locations l
WHERE d.location_id = l.location_id);
D. UPDATE dept d
SET city = (SELECT city
FROM locations l
WHERE d.location_id = l.location_id);

Answer: D

NEW QUESTION # 410
Examine the ORDER _ITEms table:

Which two queries return rows where QUANTITY is a multiple of ten?

A. SELECT" FROM order_ _items WHERE quantity = ROUND (quantity, 1);
B. SELECT * FROM order_ items WHERE quantity = TRUNC (quantity, -1);
C. SELECT FROM order_ items WHERE quantity / 10 = TRUNC (quantity);
D. SELECT" FROM order_ items WHERE FLOOR (quantity / 10) = TRUNC (quantity / 10);
E. SELECT * FROM order_ items WHERE MOD (quantity, 10) = 0;

Answer: B,E

NEW QUESTION # 411
......

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