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Oracle 1z0-071 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Restricting and Sorting Data	6%	- Use DEFINE and UNDEFINE commands - Sort the rows that are retrieved by a query - Limit the rows that are retrieved by a query - Use ampersand substitution to restrict and sort output at runtime
Topic 2: 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 3: Using DDL Statements to Create and Manage Tables	14%	- Describe the data types that are available for columns - Create a simple table - Review the table structure - Drop, rename, and truncate tables - Categorize the main database objects - Alter table definitions
Topic 4: Using Conversion Functions and Conditional Expressions	10%	- Use conditional IF THEN ELSE logic in a SELECT statement - Apply the NVL, NULLIF, and COALESCE functions to data - Describe implicit and explicit data type conversion - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
Topic 5: Displaying Data from Multiple Tables Using Joins	15%	- Write SELECT statements to access data from more than one table using equijoins and non-equijoins - Cross join tables - View data that does not meet a join condition by using outer joins - Join a table to itself by using a self-join
Topic 6: Reporting Aggregated Data Using Group Functions	15%	- Describe the use of group functions - Include or exclude grouped rows by using the HAVING clause - Identify the available group functions - Group data by using the GROUP BY clause
Topic 7: 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
Topic 8: 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 9: 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
Topic 10: Controlling User Access	5%	- Distinguish between granting privileges and roles - Differentiate system privileges from object privileges - Grant privileges on tables and on a view
Topic 11: Using Set Operators	5%	- Describe the order of precedence when the set operators are used - Use a set operator to combine multiple queries into a single query - Describe set operators
Topic 12: Working with Oracle Database SQL	8%	- Explain the installation of Oracle Database software - Describe the Oracle Database architecture - Create a container database - Start up and shut down a database
Topic 13: Manipulating Data	14%	- Insert rows into a table - Describe each data manipulation language (DML) statement - Update rows in a table - Control transactions - Delete rows from a table

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Oracle Database SQL Sample Questions (Q43-Q48):

NEW QUESTION # 43
Examine the command:

What does ON DELETE CASCADE imply?

A. When a value in the BOOKS.BOOK_IDcolumn is deleted, the corresponding value is updated in the BOOKS_TRANSACTIONS.BOOK_IDcolumn.
B. When the BOOKStable is dropped, all the rows in the BOOK_TRANSACTIONStable are deleted but the table structure is retained.
C. When the BOOKStable is dropped, the BOOK_TRANSACTIONStable is dropped.
D. When a row in the BOOKStable is deleted, the rows in the BOOK_TRANSACTIONStable whose BOOK_IDmatches that of the deleted row in the BOOKStable are also deleted.

Answer: D

NEW QUESTION # 44
Examine the description of the BOOKS_TRANSACTIONS table:

Examine this partial SQL statement:
SELECT * FROM books_transactions
Which two WHERE conditions give the same result?

A. WHERE borrowed_date = SYSDATE AND transaction_type = 'RM' AND member_id = 'A101' OR member_id = 'A102');
B. WHERE borrowed_date = SYSDATE AND transaction_type = 'RM' OR member_id IN('A101','A102');
C. WHERE borrowed_date = SYSDATE AND transaction_type = 'RM' OR member_id IN('A101','A102');
D. WHERE (borrowed_date = SYSDATE AND transaction_type = 'RM') OR member_id IN ('A101','A102');
E. WHERE borrowed_date = SYSDATE AND transaction_type = 'RM' AND (member_id = 'A101' OR member_id = 'A102'));

Answer: C,D

NEW QUESTION # 45
Which two statements are true regarding the COUNTfunction?

A. The COUNTfunction can be used only for CHAR, VARCHAR2, and NUMBERdata types.
B. COUNT (*)returns the number of rows including duplicate rows and rows containing NULLvalue in any of the columns.
C. A SELECTstatement using the COUNTfunction with a DISTINCTkeyword cannot have a WHERE clause.
D. COUNT(DISTINCT inv_amt)returns the number of rows excluding rows containing duplicates and NULLvalues in the INV_AMTcolumn.
E. COUNT(cust_id)returns the number of rows including rows with duplicate customer IDs and NULL value in the CUST_IDcolumn.

Answer: B,D

NEW QUESTION # 46
Which three statements are correct regarding indexes? (Choose three.)

A. A non-deferrable PRIMARY KEYor UNIQUE KEYconstraint in a table automatically attempts to creates a unique index.
B. For each DML operation performed, the corresponding indexes are automatically updated.
C. Indexes should be created on columns that are frequently referenced as part of any expression.
D. When a table is dropped, the corresponding indexes are automatically dropped.

Answer: A,B,D

Explanation:
Explanation/Reference:
References:
http://viralpatel.net/blogs/understanding-primary-keypk-constraint-in-oracle/

NEW QUESTION # 47
Examine the description of the EMPLOYEES table:

Which two queries return rows for employees whose manager works in a different department?

A. SELECT emp. *
FROM employees emp
WHERE manager_ id NOT IN (
SELECT mgr.employee_ id
FROM employees mgr
WHERE emp. department_ id < > mgr.department_ id
);
B. SELECT emp.*
FROM employees emp
LEFT JOIN employees mgr
ON emp.manager_ id = mgr.employee_ id
AND emp. department id < > mgr. department_ id;
C. SELECT emp. *
FROM employees emp
JOIN employees mgr
ON emp. manager_ id = mgr. employee_ id
A ND emp. department_ id<> mgr.department_ id;
D. SELECT emp.*
FROM employees emp
WHERE NOT EXISTS (
SELECT NULL
FROM employees mgr
WHERE emp.manager id = mgr.employee_ id
AND emp.department_id<>mgr.department_id
);
E. SELECT emp. *
FROM employees emp
RIGHT JOIN employees mgr
ON emp.manager_ id = mgr. employee id
AND emp. department id <> mgr.department_ id
WHERE emp. employee_ id IS NOT NULL;

Answer: C,E

NEW QUESTION # 48
......

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