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Oracle 1z0-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q34-Q39):

NEW QUESTION # 34
Which three privileges can be restricted to a subset of columns in a table? (Choose three.)

A. REFERENCES
B. INDEX
C. ALTER
D. UPDATE
E. DELETE
F. SELECT
G. INSERT

Answer: D,G

NEW QUESTION # 35
View the exhibit and examine the description of the EMPLOYEES table. (Choose two.)

You executed this SQL statement:
SELECT first_name, department_id, salary
FROM employees
ORDER BY department_id, first_name, salary desc;
Which two statements are true regarding the result? (Choose two.)

A. The values in the FIRST_NAME column would be returned in ascending order for all employees having the same value in the DEPARTMENT_ID column.
B. The values in the SALARY column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID and FIRST_NAME column.
C. The values in the SALARY column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID column.
D. The values in all columns would be returned in descending order.
E. The values in the FIRST_NAME column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID column.

Answer: A,B

NEW QUESTION # 36
Which two will execute successfully?

A. SELECT NVL('DATE',SYSDATE) FROM DUAL;
B. SELECT COALESCE('DATE',SYSDATE) FROM (SELECT NULL AS "DATE" FROM DUAL) ;
C. SELECT COALESCR('DATE', SYSDATE) FROM DUAL;
D. SELECT COALESCE(O,SYSDATE) TRCH DUAL;
E. SELECT NVL('DATE',200) FROM (SELECT NULL AS "DATE" FROM DUAL);

Answer: A,E

NEW QUESTION # 37
Which two statements are true regarding constraints? (Choose two.)

A. The foreign key and parent table primary key must have the same name.
B. Only the primary key can be defined at the column and table levels.
C. A table can have only one primary key but multiple foreign keys.
D. Both primary key and foreign key constraints can be defined at both column and table levels.
E. A table can have only one primary key and one foreign key.

Answer: C,D

NEW QUESTION # 38
View the Exhibit and examine the structure of the SALES table.

The following query is written to retrieve all those product IDs from the SALEStable that have more than
55000 sold and have been ordered more than 10 items.

Which statement is true regarding this SQL statement?

A. It executes successfully but produces no result because COUNT(prod_id)should be used instead of COUNT(*).
B. It produces an error because COUNT (*)should be only in the HAVING clause and not in the WHERE clause.
C. It produces an error because COUNT (*)should be specified in the SELECTclause also.
D. It executes successfully and generates the required result.

Answer: B

NEW QUESTION # 39
......

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