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Oracle 1z0-071 Exam Syllabus Topics:

Section	Weight	Objectives
Displaying Data from Multiple Tables Using Joins	15%	- View data that does not meet a join condition by using outer joins - Write SELECT statements to access data from more than one table using equijoins and non-equijoins - Join a table to itself by using a self-join - Cross join tables
Using Subqueries to Solve Queries	15%	- Describe the types of problems that subqueries can solve - Define subqueries - List the types of subqueries - Write single-row and multi-row subqueries
Restricting and Sorting Data	6%	- Use ampersand substitution to restrict and sort output at runtime - Limit the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands - Sort the rows that are retrieved by a query
Using Single-Row Functions to Customize Output	10%	- Describe the differences between single-row and multiple-row functions - Manipulate strings with character function in the SELECT and WHERE clauses - Perform arithmetic with date data - Manipulate dates with the date functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions
Reporting Aggregated Data Using Group Functions	15%	- Identify the available group functions - Describe the use of group functions - Group data by using the GROUP BY clause - Include or exclude grouped rows by using the HAVING clause
Using Conversion Functions and Conditional Expressions	10%	- Apply the NVL, NULLIF, and COALESCE functions to data - Use conditional IF THEN ELSE logic in a SELECT statement - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Describe implicit and explicit data type conversion
Retrieving Data Using the SQL SELECT Statement	5%	- Differentiate between SQL statements and SQL*Plus commands - Execute a basic SELECT statement - List the capabilities of SQL SELECT statements
Manipulating Data	14%	- Describe each data manipulation language (DML) statement - Control transactions - Update rows in a table - Delete rows from a table - Insert rows into a table
Working with Oracle Database SQL	8%	- Describe the Oracle Database architecture - Create a container database - Explain the installation of Oracle Database software - Start up and shut down a database
Creating Other Schema Objects	10%	- Create, maintain, and use sequences - Create and maintain indexes - Create, modify, and retrieve data from a view - Create synonyms for database objects
Using Set Operators	5%	- Use a set operator to combine multiple queries into a single query - Describe the order of precedence when the set operators are used - Describe set operators
Controlling User Access	5%	- Grant privileges on tables and on a view - Differentiate system privileges from object privileges - Distinguish between granting privileges and roles
Using DDL Statements to Create and Manage Tables	14%	- Drop, rename, and truncate tables - Create a simple table - Alter table definitions - Categorize the main database objects - Describe the data types that are available for columns - Review the table structure

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Oracle Database SQL Sample Questions (Q383-Q388):

NEW QUESTION # 383
Examine these two queries and their output:
SELECT deptno, dname FROM dept;

SELECT emame, job, deptno FROM emp ORDER BY deptno;

Now examine this query:

How many rows will be displayed?

A. 0
B. 1
C. 2
D. 3

Answer: B

NEW QUESTION # 384
Which three are true about multitable INSERTstatements? (Choose three.)

A. They can be performed only by using a subquery.
B. They can be performed on relational tables.
C. They can be performed on remote tables.
D. They can be performed on views.
E. They can insert each computed row into more than one table.
F. They can be performed on external tables using SQL* Loader.

Answer: A,B,F

Explanation:
Explanation/Reference: https://www.akadia.com/services/ora_multitable_insert.html

NEW QUESTION # 385
Refer to the exhibit.

Which three statements are true?

A. The DNAME column has a unique constraint.
B. The MANAGER column is a foreign key referencing the EMPNO column.
C. The COMMISSION column can contain negative values .
D. The DEPTNO column in the EMP table can contain the value 1.
E. The DEPTNO column in the EMP table can contain NULLS .
F. An index is created automatically in the MANAGER column.
G. The SALARY column must have a value .

Answer: B,D,G

Explanation:
A . The constraint commission < salary implies that COMMISSION must be less than SALARY, so it can have a negative value if the salary is greater than zero, making this statement true.
B . The constraint named CR_MGR is listed as a Referential (R) constraint on the MANAGER column, which implies it is a foreign key that would reference the EMPNO column, making this statement true.
C . The SALARY column is part of a Check (C) constraint CC_COMM that requires the SALARY to be greater than 100, which means it must have a value and cannot be NULL, making this statement true.
D . The presence of a foreign key constraint does not automatically create an index on the foreign key column. While Oracle may implicitly create indexes for primary keys, it does not do so for foreign keys.
E . The constraint deptno > 9 prevents DEPTNO from containing values less than or equal to 9, so it cannot contain the value 1, making this statement false.
F . There is no NOT NULL constraint listed on the DEPTNO column in the constraints image, so it can contain NULL values, making this statement false.
G . There is no indication of a unique constraint on the DNAME column in the constraints image; the constraint DNAME IS NOT NULL only implies that the column cannot contain NULL values, making this statement false.
Reference:
Oracle Database SQL Language Reference, 12c Release 1 (12.1): "Constraints" Oracle Database Concepts, 12c Release 1 (12.1): "Indexes and Index-Organized Tables"

NEW QUESTION # 386
View the exhibit and examine the structure of the EMPLOYEES table.

You want to select all employees having 100 as their MANAGER_ID manages and their manager.
You want the output in two columns: the first column should have the employee's manager's LAST_NAME and the second column should have the employee's LAST_NAME.
Which SQL statement would you execute?

A. SELECT m.last_name "Manager", e.last_name "Employee"FROM employees m JOIN employees eON m.employee_id = e.manager_idWHERE e.manager_id=100;
B. SELECT m.last_name "Manager", e.last_name "Employee"FROM employees m JOIN employees eON m.employee_id = e.manager_idWHERE m.manager_id=100;
C. SELECT m.last_name "Manager", e.last_name "Employee"FROM employees m JOIN employees eON e.employee_id = m.manager_idWHERE m.manager_id=100;
D. SELECT m.last_name "Manager", e.last_name "Employee"FROM employees m JOIN employees eWHERE m.employee_id = e.manager_id AND e.manager_id=100

Answer: A

NEW QUESTION # 387
Which two are true about transactions in the Oracle Database?

A. A session can see uncommitted updates made by the same user in a different session.
B. DML statements always start new transactions.
C. A DDL statement issued by a session with an uncommitted transaction automatically Commits that transaction.
D. DDL statements automatically commit only data dictionary updates caused by executing the DDL.
E. An uncommitted transaction is automatically committed when the user exits SQL*Plus.

Answer: C,E

Explanation:
This question appears to be a duplicate of question no. 269, and the correct answers provided there apply here as well.
B . True. A DDL statement automatically commits any outstanding uncommitted transaction in the session. E. True. Exiting SQL*Plus without explicitly committing a transaction will cause the uncommitted transaction to be rolled back, not committed.
A, C, and D are incorrect for the same reasons provided in the explanation for question no. 269.

NEW QUESTION # 388
......

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