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Oracle 1z0-071 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Manipulating Data	14%	- Delete rows from a table - Update rows in a table - Insert rows into a table - Control transactions - Describe each data manipulation language (DML) statement
Topic 2: Reporting Aggregated Data Using Group Functions	15%	- Describe the use of group functions - Include or exclude grouped rows by using the HAVING clause - Group data by using the GROUP BY clause - Identify the available group functions
Topic 3: Using DDL Statements to Create and Manage Tables	14%	- Categorize the main database objects - Describe the data types that are available for columns - Drop, rename, and truncate tables - Alter table definitions - Create a simple table - Review the table structure
Topic 4: Using Subqueries to Solve Queries	15%	- Write single-row and multi-row subqueries - Define subqueries - List the types of subqueries - Describe the types of problems that subqueries can solve
Topic 5: Using Set Operators	5%	- Use a set operator to combine multiple queries into a single query - Describe set operators - Describe the order of precedence when the set operators are used
Topic 6: Using Conversion Functions and Conditional Expressions	10%	- 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 - Apply the NVL, NULLIF, and COALESCE functions to data
Topic 7: Restricting and Sorting Data	6%	- Use DEFINE and UNDEFINE commands - Limit the rows that are retrieved by a query - Use ampersand substitution to restrict and sort output at runtime - Sort the rows that are retrieved by a query
Topic 8: Using Single-Row Functions to Customize Output	10%	- Perform arithmetic with date data - Manipulate strings with character function in the SELECT and WHERE clauses - Manipulate dates with the date functions - Describe the differences between single-row and multiple-row functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions
Topic 9: Creating Other Schema Objects	10%	- Create and maintain indexes - Create synonyms for database objects - Create, modify, and retrieve data from a view - Create, maintain, and use sequences
Topic 10: Retrieving Data Using the SQL SELECT Statement	5%	- Differentiate between SQL statements and SQL*Plus commands - List the capabilities of SQL SELECT statements - Execute a basic SELECT statement
Topic 11: Controlling User Access	5%	- Differentiate system privileges from object privileges - Grant privileges on tables and on a view - Distinguish between granting privileges and roles
Topic 12: 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 - Write SELECT statements to access data from more than one table using equijoins and non-equijoins - Cross join tables
Topic 13: Working with Oracle Database SQL	8%	- Create a container database - Describe the Oracle Database architecture - Start up and shut down a database - Explain the installation of Oracle Database software

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Oracle Database SQL Sample Questions (Q41-Q46):

NEW QUESTION # 41
Examine the description of the EMPLOYEES table:

Which query is valid?

A. SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;
B. SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;
C. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id;
D. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;

Answer: D

NEW QUESTION # 42
View the exhibits and examine the structures of the COSTSand PROMOTIONStables.

Evaluate the following SQL statement:

What would be the outcome of the above SQL statement?

A. It displays prod IDs in the promos which cost less than the highest cost in the same time interval.
B. It displays prod IDs in the promo with the lowest cost.
C. It displays prod IDs in the promos with the highest cost in the same time interval.
D. It displays prod IDs in the promos with the lowest cost in the same time interval.

Answer: A

NEW QUESTION # 43
Which statement will execute successfully?

A. SELECT 1, 2 FROM DUAL
UNION
SELECT 3, 4 FROM DUAL
ORDER BY 3, 4;
B. SELECT 1 FROM DUAL
UNION
SELECT 2 FROM DUAL
ORDER BY 1, 2;
C. SELECT 1, 2 FROM DUAL
UNION
SELECT 3, 4 FROM DUAL
ORDER BY 1, 2;
D. SELECT 3 FROM DUAL
UNION
SELECT 4 FROM DUAL
ORDER BY 3 ;

Answer: C

NEW QUESTION # 44
Which two are true about savepoints?

A. You can commit updates done between two savepoints without committing other updates In the current transaction.
B. They make uncommitted updates visible to other sessions owned by the? same user.
C. A rollback to savepoint command issued before the start of a transaction results In an error.
D. After issuing a savepoint, you cannot roll back the complete transaction.
E. They make uncommitted updates visible to sessions owned by other users.
F. After issuing a savepoint, you can roll back to the savepoint name within the current transaction.

Answer: B,F

NEW QUESTION # 45
Examine the structure and data in the PRICE_LIST table:
name Null Type
------ --------- -------
PROD_ID NOT NULL NUMBER(3)
PROD_PRICE VARCHAR2(10)
PROD_ID PROD_PRICE
---------- ------------
100 $234.55
101 $6,509.75
102 $1,234
You plan to give a discount of 25% on the product price and need to display the discount amount in the same format as the PROD_PRICE.
Which SQL statement would give the required result?

A. SELECT TO_NUMBER(TO_NUMBER(prod_price,'$99,999.99')* .25,'$99,999.00') FROM PRICEJLIST;
B. SELECT TO_CHAR(prod_price* .25,'$99,999.99') FROM PRICEJJST;
C. SELECT TO_CHAR(TO_NUMBER(prod_price)* .25,'$99,999.00') FROM PRICEJLIST;
D. SELECT TO_CHAR(TO_NUMBER(prod_price,'$99,999.99')* .25,'$99,999.00') FROM PRICEJLIST;

Answer: D

Explanation:
Using the TOJCHAR Function
The TOJCHAR function returns an item of data type VARCHAR2. When applied to items of type NUMBER, several formatting options are available. The syntax is as follows:
TO_CHAR(number1, [format], [nls_parameter]), The number1 parameter is mandatory and must be a value that either is or can be implicitly converted into a number. The optional format parameter may be used to specify numeric formatting information like width, currency symbol, the position of a decimal point, and group (or thousands) separators and must be enclosed in single Syntax of Explicit Data Type Conversion Functions TO_NUMBER(char1, [format mask],
[nls_parameters]) = num1 TO_CHAR(num1, [format mask], [nls_parameters]) = char1 TO_DATE(char1, [format mask], [nls_parameters]) = date1 TO_CHAR(date1, [format mask],
[nls_parameters]) = char1

NEW QUESTION # 46
......

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