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Oracle 1z0-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q222-Q227):

NEW QUESTION # 222
In the PROMOTIONS table, the PROMO_BEGTN_DATE column is of data type DATE and the default date format is DD-MON-RR.
Which two statements are true about expressions using PROMO_BEGIN_DATE contained in a query?

A. PROMO_BEGIN_DATE-SYSDATE will return a number.
B. PROMO_BEGIN_DATE-SYSDATE will return an error.
C. TO_DATE(PROMO_BEGIN_DATE * 5) will return a date
D. PROMO_BEGIN_DATE-5 will return a date.
E. TO_NUMBER(PROMO_BEGIN_DATE)-5 will return number

Answer: A,D

NEW QUESTION # 223
The ORDERS table has a primary key constraint on the ORDER_ID column.
The ORDER_ITEMS table has a foreign key constraint on the ORDER_ID column, referencing the primary key of the ORDERS table.
The constraint is defined with on DELETE CASCADE.
There are rows in the ORDERS table with an ORDER_TOTAL less than 1000.
Which three DELETE statements execute successfully?

A. DELETE order_id FROM orders WHERE order_total<1000;
B. DELETE FROM orders WHERE order_total<1000;
C. DELETE * FROM orders WHERE order_total<1000;
D. DELETE orders WHERE order_total<1000;
E. DELETE FROM orders;

Answer: B,D,E

NEW QUESTION # 224
SCOTT is a user in the database.
Evaluate the commands issued by the DBA:
Which statement is true regarding the execution of the above commands?

A. Statement 3 would not execute because role and system privileges cannot be granted together in a single GRANT statement.
B. Statement 2 would not execute because system privileges and object privileges cannot be granted together in a single GRANT command.
C. Statement 1 would not execute because the IDENTIFIED BY <password> clause is missing.
D. Statement 1 would not execute because the WITH GRANT option is missing.

Answer: B

NEW QUESTION # 225
View the Exhibit and examine the structure of the BOOKStable.

The BOOKS table contains details of 100 books.
Examine the commands executed and their outcome:

Which statement is true?

A. The first rollback restores the 100 rows that were deleted and the second rollback commits only the changes.
B. Both ROLLBACKcommands restore the 101 rows that were deleted.
C. Both ROLLBACKcommands restore the 100 rows that were deleted.
D. The first rollback restores the 101 rows that were deleted and the second rollback causes the row was inserted to be deleted and commits the changes.

Answer: D

NEW QUESTION # 226
Examine the structure of the BOOKS_TRANSACTIONS table:

You want to display the member IDs, due date, and late fee as $2 for all transactions.
Which SQL statement must you execute?

A. SELECT member_id AS "MEMBER ID", due_date AS "DUE DATE", '$2' AS "LATE FEE" FROM BOOKS_TRANSACTIONS;
B. SELECT member_id AS "MEMBER ID", due_date AS "DUE DATE", $2 AS "LATE FEE" FROM BOOKS_TRANSACTIONS;
C. SELECT member_id 'MEMBER ID', due_date 'DUE DATE', '$2 AS LATE FEE' FROM BOOKS_TRANSACTIONS;
D. SELECT member_id AS MEMBER_ID, due_date AS DUE_DATE, $2 AS LATE_FEE FROM BOOKS_TRANSACTIONS;

Answer: A

NEW QUESTION # 227
......

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