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Oracle 1z0-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q363-Q368):

NEW QUESTION # 363
Examine the description of the EMPLOYEES table:

Which two queries return the highest salary in the table?

A. SELECT MAX (salary)
FROM employees
GROUP BY department_id
HAVING MAX (salary) = MAX (MAX (salary));
B. SELECT MAX (MAX (salary))
FROM employees
GROUP BY department_id;
C. SELECT MAX (salary)
FROM employees
GROUP BY department_id;
D. SELECT department_id, MAX(salary)
FROM employees
GROUP BY department_id;
E. SELECT MAX (salary)
FROM employees;

Answer: B,E

NEW QUESTION # 364
Which statement is true regarding external tables?

A. The default REJECT LIMIT for external tables is UNLIMITED.
B. The CREATE TABLE AS SELECT statement can be used to upload data into a normal table in the database from an external table.
C. The data and metadata for an external table are stored outside the database.
D. ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.

Answer: B

Explanation:
Explanation
References:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/tables013.htm

NEW QUESTION # 365
Examine the commands used to create DEPARTMENT_DETAILSand COURSE_DETAILS tables:

You want to generate a list of all department IDs that do not exist in the COURSE_DETAILStable.
You execute the SQL statement:

What is the outcome?

A. It fails because the ON clause condition is not valid.
B. It executes successfully but displays an incorrect list.
C. It fails because the join type used is incorrect.
D. It executes successfully and displays the required list.

Answer: D

NEW QUESTION # 366
Which three statements are true about performing Data Manipulation Language (DML) operations on a view with no INSTEAD OF triggers defined? (Choose three.)

A. Views cannot be used to add or modify rows in an underlying table if the defining query of the view contains the DISTINCT keyword.
B. Views cannot be used to add rows to an underlying table if the table has columns with NOT NULL constraints lacking default values which are not referenced in the defining query of the view.
C. Insert statements can always be done on a table through a view.
D. The WITH CHECK clause has no effect when deleting rows from the underlying table through the view.
E. Delete statements can always be done on a table through a view.
F. Views cannot be used to query rows from an underlying table if the table has a PRIMARY KEY and the PRIMARY KEY columns are not referenced in the defining query of the view.

Answer: C,E,F

NEW QUESTION # 367
Which two statements will return the names of the three employees with the lowest salaries?

A. SELECT last_name,salary
FROM employees
ORDER BY salary
FETCH FIRST 3 ROWS ONLY;
B. SELECT last_name, salary
FROM employees
WHERE ROWNUM<=3
C. SELECT last_name,salary
FROM employees
FETCH FIRST 3 ROWS ONLY
ORDER BY salary;
D. SELECT last_name,salary
FROM employees
WHERE ROWNUM<=3
ORDER BY (SELECT salary FROM employees);
E. SELECT last_name,salary
FROM (SELECT * FROM employees ORDER BY salary)

Answer: A,E

NEW QUESTION # 368
......

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