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Oracle 1z0-071 Exam Syllabus Topics:

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

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Exam 1z0-071 Exercise | 1z0-071 Real Question

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Oracle Database SQL Sample Questions (Q286-Q291):

NEW QUESTION # 286
Which three statements are true regarding the SQL WHERE and HAVING clauses? (Choose three.)

A. The WHERE and HAVING clauses cannot be used together in a SQL statement.
B. The WHERE clause is used to exclude rows before grouping data.
C. The HAVING clause is used to exclude one or more aggregated results after grouping data.
D. The HAVING clause conditions can have aggregating functions.
E. The HAVING clause conditions can use aliases for the columns.

Answer: B,C,D

NEW QUESTION # 287
View the Exhibit and examine the description of the EMPLOYEES table.

Evaluate the following SQL statement:
SELECT first_name, employee_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 1) "Review" FROM employees; The query was written to retrieve the FIRST_NAME, EMPLOYEE_ID, and review date for employees. The review date is the firsts Monday after the completion of six months of the hiring. The NLS_TERRITORY parameter is set to AMERICA in the session.
Which statement is true regarding this query?

A. The query would not execute because the NEXT_DAY function accepts a string as argument.
B. The query would not execute because date functions cannot be nested.
C. The query would execute to give the desired output.
D. The query would execute but the output would give review dates that are Sundays.

Answer: D

NEW QUESTION # 288
View the Exhibit and examine the structure of the ORDERS table.

You must select ORDER_ID and ORDER_DATE for all orders that were placed after the last order placed by CUSTOMER_ID 101.
Which query would give you the desired result?

A. SELECT order_id, order_date FROM orders
WHERE order_date >
ANY
(SELECT order_date FROM orders WHERE customer_id = 101);
B. SELECT order_id, order_date FROM orders
WHERE order_date > ALL
(SELECT order_date FROM orders WHERE customer_id = 101);
C. SELECT order_id, order_date FROM orders
WHERE order_date > IN
(SELECT order_date FROM orders WHERE customer_id = 101);
D. SELECT order_id, order_date FROM orders
WHERE order_date > ALL
(SELECT MAX(order_date) FROM orders ) AND customer_id = 101;

Answer: B

NEW QUESTION # 289
View the Exhibit and examine the description for the SALES and CHANNELS tables. (Choose the best answer.)

You issued this SQL statement:

Which statement is true regarding the result?

A. The statement will fail because a subquery cannot be used in a VALUES clause.
B. The statement will fail because the VALUES clause is not required with the subquery.
C. The statement will fail because the subquery in the VALUES clause is not enclosed within single quotation marks.
D. The statement will execute and a new row will be inserted in the SALES table.

Answer: D

NEW QUESTION # 290
View the exhibit and examine the ORDERStable.

The ORDERStable contains data and all orders have been assigned a customer ID. Which statement would add a NOTNULLconstraint to the CUSTOMER_IDcolumn?
ALTER TABLE orders

A. MODIFY customer_id CONSTRAINT orders_cust_nn NOT NULL (customer_id);
ALTER TABLE orders
B. ADD CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);
ALTER TABLE orders
C. MODIFY CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);
ALTER TABLE orders
D. ADD customer_id NUMBER(6)CONSTRAINT orders_cust_id_nn NOT NULL;

Answer: A

NEW QUESTION # 291
......

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