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Oracle 1z1-071 Exam Syllabus Topics:

Section	Weight	Objectives
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
Working with Oracle Database SQL	8%	- Create a container database - Start up and shut down a database - Describe the Oracle Database architecture - Explain the installation of Oracle Database software
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
Controlling User Access	5%	- Distinguish between granting privileges and roles - Grant privileges on tables and on a view - Differentiate system privileges from object privileges
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
Using Subqueries to Solve Queries	15%	- Write single-row and multi-row subqueries - Describe the types of problems that subqueries can solve - Define subqueries - List the types of subqueries
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
Using Single-Row Functions to Customize Output	10%	- Describe the differences between single-row and multiple-row functions - Perform arithmetic with date data - Manipulate strings with character function in the SELECT and WHERE clauses - Manipulate dates with the date functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions
Displaying Data from Multiple Tables Using Joins	15%	- Join a table to itself by using a self-join - 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
Using DDL Statements to Create and Manage Tables	14%	- Create a simple table - Drop, rename, and truncate tables - Describe the data types that are available for columns - Review the table structure - Categorize the main database objects - Alter table definitions
Manipulating Data	14%	- Update rows in a table - Delete rows from a table - Control transactions - Describe each data manipulation language (DML) statement - Insert rows into a table
Reporting Aggregated Data Using Group Functions	15%	- Include or exclude grouped rows by using the HAVING clause - Identify the available group functions - Describe the use of group functions - Group data by using the GROUP BY clause
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

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Oracle Database SQL Sample Questions (Q29-Q34):

NEW QUESTION # 29
View and Exhibit and examine the structure and data in the INVOICE table. (Choose two.)

Which two statements are true regarding data type conversion in query expressions?

A. inv_date > '01-02-2008' : uses implicit conversion
B. CONCAT(inv_amt, inv_date) : requires explicit conversion
C. inv_amt = '0255982' : requires explicit conversion
D. inv_no BETWEEN '101' AND '110' : uses implicit conversion
E. inv_date = '15-february-2008' :uses implicit conversion

Answer: D,E

NEW QUESTION # 30
Which two statements are true about substitution variables? (Choose two.)

A. A substitution variable can be used only in a SELECT statement
B. A substitution variable prefixed with & always prompts only once for a value in a session
C. A substitution variable used to prompt for a column name must be enclosed in double quotation marks
D. A substitution variable used to prompt for a column name must be enclosed in a single quotation marks
E. A substitution variable can be used with any clause in a SELECT statement
F. A substitution variable prefixed with && prompts only once for a value in a session unless it is set to undefined in the session

Answer: B,D

Explanation:
Explanation/Reference: https://blogs.oracle.com/opal/sqlplus-101-substitution-variables

NEW QUESTION # 31
Examine this SQL statement:

Which two are true? (Choose two.)

A. The DELETE statement executes successfully even if the subquery selects multiple rows.
B. All existing rows in the EMPLOYEES table are deleted.
C. The subquery is executed before the DELETE statement is executed.
D. The subquery is executed for every row in the EMPLOYEES table.
E. The subquery is not a correlated subquery.

Answer: C,D

NEW QUESTION # 32
View the exhibit and examine the description of SALESand PROMOTIONStables.

You want to delete rows from the SALES table, where the PROMO_NAMEcolumn in the PROMOTIONStable has either blowout saleor everyday low priceas values.
Which three DELETEstatements are valid? (Choose three.)
DELETE

A. FROM sales
WHERE promo_id IN (SELECT promo_id
FROM promotions
WHERE promo_name IN = 'blowout sale','everyday low price'));
B. FROM sales
WHERE promo_id = (SELECT promo_id
FROM promotions
WHERE promo_name = 'blowout sale')
OR promo_id = (SELECT promo_id
FROM promotions
WHERE promo_name = 'everyday low price')
DELETE
C. FROM sales
WHERE promo_id = (SELECT promo_id
FROM promo_name = 'blowout sale')
AND promo_id = (SELECT promo_id
FROM promotions
WHERE promo_name = 'everyday low price')
FROM promotions
WHERE promo_name = 'everyday low price');
DELETE
D. FROM sales
WHERE promo_id = (SELECT promo_id
FROM promotions
WHERE promo_name = 'blowout sale')
OR promo_name = 'everyday low price');
DELETE

Answer: A,B,D

NEW QUESTION # 33
Examine the commands used to create DEPARTMENT_DETAILS and COURSE_DETAILS tables:

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

What is the outcome?

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

Answer: A

NEW QUESTION # 34
......

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