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Oracle 1z1-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q314-Q319):

NEW QUESTION # 314
View the Exhibit and examine the description of the tables.

You execute this SQL statement:

Which three statements are true?

A. The statement will fail because a subquery may not be contained in a VALUES clause.
B. A product can have a different unit price at different times.
C. The statement will execute successfully and a new row will be inserted into the SALES table.
D. The statement will fail if a row already exists in the SALES table for product 23.
E. A customer can exist in many countries.
F. The SALES table has five foreign keys.

Answer: C,E,F

NEW QUESTION # 315
View the Exhibit and examine the structure of ORDER_ITEMS and ORDERS tables.

You need to remove from the ORDER_ITEMS table those rows that have an order status of 0 or 1 in the ORDERS table.
Which two DELETE statements are valid (Choose two.)

A. DELETEFROM (SELECT * FROM order_items I,orders oWHERE i.order_id = o.order_id AND order_status IN (0,1));
B. DELETE FROM order_items iWHERE order_id = (SELECT order_id FROM orders oWHERE i.order_id = o.order_id AND order_status IN (0,1));
C. DELETE *FROM order_itemsWHERE order_id IN (SELECT order_id)FROM ordersWHERE order_status IN (0,1));
D. DELETEFROM order_itemsWHERE order_id IN (SELECT order_idFROM ordersWHERE orders_status in (0,1));

Answer: A,D

NEW QUESTION # 316
Examine the command:

What does ON DELETE CASCADE imply?

A. When the BOOKStable is dropped, all the rows in the BOOK_TRANSACTIONStable are deleted but the table structure is retained.
B. When a value in the BOOKS.BOOK_IDcolumn is deleted, the corresponding value is updated in the BOOKS_TRANSACTIONS.BOOK_IDcolumn.
C. When a row in the BOOKStable is deleted, the rows in the BOOK_TRANSACTIONStable whose BOOK_ID matches that of the deleted row in the BOOKStable are also deleted.
D. When the BOOKStable is dropped, the BOOK_TRANSACTIONStable is dropped.

Answer: C

Explanation:
Explanation

NEW QUESTION # 317
Which three are true about system and object privileges? (Choose three.)

A. Revoking an object privilege that was granted with the WITH GRANT OPTION clause has a cascading effect.
B. WITH GRANT OPTION cannot be used when granting an object privilege to PUBLIC
C. Adding a foreign key constraint pointing to a table in another schema requires the REFERENCES object privilege
D. Revoking a system privilege that was granted with WITH ADMIN OPTION has a cascading effect
E. Adding a primary key constraint to an existing table in another schema requires a system privilege
F. WITH GRANT OPTION can be used when granting an object privilege to both users and roles

Answer: A,C,F

Explanation:
https://docs.oracle.com/cd/B28359_01/network.111/b28531/authorization.htm#DBSEG004

NEW QUESTION # 318
Which two are true about granting privileges on objects?

A. An object privilege can be granted to other users only by the owner of that object.
B. The WITH GRANT OPTIONclause can be used only by DBA users.
C. A table owner must grant the REFERENCESprivilege to allow other users to create FOREIGN KEY constraints using that table.
D. The owner of an object acquires all object privileges on that object by default.
E. An object privilege can be granted to a role only by the owner of that object.

Answer: C,D

Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/network.102/b14266/authoriz.htm#i1008214

NEW QUESTION # 319
......

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