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Oracle 1z0-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q80-Q85):

NEW QUESTION # 80
Examine the description of the transactions table:
Which two SQL statements execute successfully?

A. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount+100 "DUES" from transactions;
B. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount+100 DUES FROM transactions;
C. SELECT customer id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount+100 "DUES AMOUNT" FROM transactions;
D. SELECT customer_id CUSTID, transaction_date TRANS_DATEamount+100 DUES FROM transactions;
E. SELECT customer_id AS 'CUSTOMER-ID',transaction_date AS DATE, amount+100 'DUES' from transactions;

Answer: B,D

Explanation:
Examining the execution of SELECT statements in Oracle SQL requires understanding correct syntax, especially regarding aliases and string literals:
* Option A: Incorrect. Although the syntax might seem plausible, using DATE as an alias without quotes can lead to ambiguity because DATE is a reserved keyword in Oracle SQL. This might cause an error or unexpected behavior unless it is enclosed in double quotes.
* Option B: Incorrect. Single quotes are used for string literals in SQL, not for aliasing column names.
Using single quotes for aliasing, as in 'CUSTOMER-ID', 'DUES', is syntactically incorrect and will result in an error.
* Option C: Correct. This statement uses valid syntax with no reserved keywords as aliases and no misuse of string literal notation. Aliases are provided without quotes, which is acceptable as long as they are not
* reserved words or contain special characters.
* Option D: Correct. It correctly uses double quotes for aliasing, which is necessary when using reserved words like "DATE" or special characters. This is a proper use of SQL syntax for aliasing in Oracle.
* Option E: Incorrect. This statement attempts to use aliases with hyphens without enclosing them in double quotes, which leads to syntax errors. Also, customer id seems to be missing an underscore or another connector to properly reference a column name, indicating a typo or error.
For these queries, ensuring correct alias syntax and avoiding reserved keywords without appropriate quoting are key elements for successful execution.

NEW QUESTION # 81
On your Oracle 12c database, you invoked SQL *Loader to load data into the EMPLOYEEStable in the HR schema by issuing the following command:
$> sqlldr hr/hr@pdb table=employees
Which two statements are true regarding the command? (Choose two.)

A. It fails if the HR user does not have the CREATE ANY DIRECTORYprivilege.
B. It fails because no SQL *Loader data file location is specified.
C. It fails because no SQL *Loader control file location is specified.
D. It succeeds with default settings if the EMPLOYEEStable belonging to HR is already defined in the database.

Answer: A,D

Explanation:
Explanation/Reference:

NEW QUESTION # 82
Which two are true? (Choose two.)

A. LAST_DAY returns the date of the last day of the month for the date argument passed to the function.
B. CEIL returns the largest integer less than or equal to a specified number.
C. ADD_MONTHS adds a number of calendar months to a date.
D. LAST_DAY returns the date of the last day of the previous month only.
E. LAST_DAY returns the date of the last day of the current month only.
F. CEIL requires an argument which is a numeric data type.

Answer: B,C

Explanation:
https://docs.oracle.com/database/121/SQLRF/functions025.htm
https://docs.oracle.com/cd/B28359_01/server.111/b28286/functions004.htm

NEW QUESTION # 83
View the exhibit and examine the structure in ORDERSand ORDER_ITEMStables.

You need to create a view that displays the ORDER_ID, ORDER_DATE, and the total number of items in each order.
Which CREATEVIEWstatement would create the views successfully?

A. CREATE OR REPLACE VIEW ord_vu
AS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id, o.order_date;
B. CREATE OR REPLACE VIEW ord_vu
AS SELECT o.order_id, o.order_date, COUNT (i.line_item_id) ||
"NO OF ITEMS"
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
WHITH CHECK OPTION;
C. CREATE OR REPLACE VIEW ord_vu
AS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)
" NO OF ITEMS"
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id, o.order_date;
D. CREATE OR REPLACE VIEW ord_vu (order_id, order_date)
AS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)
" NO OF ITEMS"
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id, o.order_date;

Answer: C

NEW QUESTION # 84
Examine the description of the EMPLOYEES table:

Which statement will execute successfully, returning distinct employees with non-null first names?

A. SELECT Distinct * FROM employees WHERE first_ name < > NULL;
B. SELECT first_ name, DISTNCT last_ name FROM employees WHERE first_ name IS NOT NULL;
C. SELECT first_ name, DISTINCT last_ name FROM employees WHERE first_ name < > NULL;
D. SELECT DISTINCT * FROM employees WHERE first_ name IS NOT NULL;

Answer: D

NEW QUESTION # 85
......

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