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Oracle 1z0-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q260-Q265):

NEW QUESTION # 260
Examine this data in the EMPLOYERS table

Which statement will execute successfully?

A. SELECT dept_id, LENGTH (last_name), SUM (salary) FROM employees GROUP BY dept_id
B. SELECT dept_id, STDDEV (last_name), SUM (salary) FROM employees GROUP BY dept_id
C. SELECT dept_id, MAX (Last_name), SUM (salary) FROM employees GROUP BY dept_id
D. SELECT dept_id, INSTR (last_name,'A'), SUM (salary) FROM employees GROUP BY dept_id

Answer: C

NEW QUESTION # 261
What is the primary difference between the relational database (RDB) and object-oriented database (OODB) models?

A. OODB supports multiple objects in the same database, whereas RDB supports only tables.
B. RDB allows the definition of relationships between different tables, whereas OODB does not allow this.
C. RDB supports only E.F. Codd's rules, whereas OODB does not support them.
D. OODB incorporates methods with data structure definition, whereas RDB does not allow this.

Answer: D

Explanation:
Explanation/Reference:

NEW QUESTION # 262
Examine the description of the EMPLOYEES table

Which two queries return the highest salary in the table?

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

Answer: A,B

NEW QUESTION # 263
Examine the description of the PRODUCT_DETAILS table:

Which two statements are true?

A. EXPIRY_DATE cannot be used in arithmetic expressions.
B. PRODUCT_NAME cannot contain duplicate values.
C. PRODUCT_ID can be assigned the PRIMARY KEY constraint.
D. EXPIRY_DATE contains the SYSDATE by default if no date is assigned to it.
E. PRODUCT_PRICE can be used in an arithmetic expression even if it has no value stored in it.
F. PRODUCT_PRICE contains the value zero by default if no value is assigned to it.

Answer: A,B

NEW QUESTION # 264
The first DROP operation is performed on PRODUCTS table using the following command:
DROP TABLE products PURGE;
Then you performed the FLASHBACK operation by using the following command:
FLASHBACK TABLE products TO BEFORE DROP;
Which statement describes the outcome of the FLASHBACK command?

A. It is not possible to recover the table structure, data, or the related indexes.
B. It recovers the table structure and data but not the related indexes.
C. It recovers the table structure, data, and the indexes.
D. It recovers only the table structure.

Answer: A

Explanation:
Explanation
References:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_9003.htm

NEW QUESTION # 265
......

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