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Oracle 1z1-071 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: 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 2: Displaying Data from Multiple Tables Using Joins	15%	- 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 - Join a table to itself by using a self-join
Topic 3: Using DDL Statements to Create and Manage Tables	14%	- Categorize the main database objects - Review the table structure - Alter table definitions - Create a simple table - Drop, rename, and truncate tables - Describe the data types that are available for columns
Topic 4: Using Conversion Functions and Conditional Expressions	10%	- Describe implicit and explicit data type conversion - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Apply the NVL, NULLIF, and COALESCE functions to data - Use conditional IF THEN ELSE logic in a SELECT statement
Topic 5: 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 6: 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
Topic 7: Manipulating Data	14%	- Control transactions - Describe each data manipulation language (DML) statement - Delete rows from a table - Update rows in a table - Insert rows into a table
Topic 8: Using Single-Row Functions to Customize Output	10%	- Manipulate numbers with the ROUND, TRUNC, and MOD functions - Describe the differences between single-row and multiple-row functions - Manipulate dates with the date functions - Perform arithmetic with date data - Manipulate strings with character function in the SELECT and WHERE clauses
Topic 9: 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
Topic 10: 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
Topic 11: Using Subqueries to Solve Queries	15%	- Write single-row and multi-row subqueries - List the types of subqueries - Describe the types of problems that subqueries can solve - Define subqueries
Topic 12: 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 13: Restricting and Sorting Data	6%	- Use DEFINE and UNDEFINE commands - Use ampersand substitution to restrict and sort output at runtime - Limit the rows that are retrieved by a query - Sort the rows that are retrieved by a query

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Oracle Database SQL Sample Questions (Q252-Q257):

NEW QUESTION # 252
View the exhibit and examine the structure in ORDERS and ORDER_ITEMS tables.

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

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

Answer: A

NEW QUESTION # 253
View the exhibits and examine the structures of the COSTSand PROMOTIONStables.

Evaluate the following SQL statement:
SQL> SELECT prod_id FROM costs
WHERE promo_id IN (SELECT promo_id FROM promotions
WHERE promo_cost < ALL
( SELECT MAX(promo_cost) FROM promotions
GROUP BY (promo_end_date-
promo_begin_date)));
What would be the outcome of the above SQL statement?

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

NEW QUESTION # 254
Which two statements are true about a self join? (Choose two.)

A. The join key column must have an index.
B. It must be a full outer join.
C. It must be an equijoin.
D. It can be a left outer join.
E. It can be an inner join.

Answer: A,E

Explanation:
Explanation/Reference: https://www.oracletutorial.com/oracle-basics/oracle-self-join/

NEW QUESTION # 255
Which three statements are true about GLOBAL TEMPORARY TABLES?

A. A TRUNCATE command issued in a session causes all rows in a GLOBAL TEMPORARY TABLE for the issuing session to be deleted.
B. Any GLOBAL TEMPORARY TABLE rows existing at session termination will be deleted.
C. GLOBAL TEMPORARY TABLE rows inserted by a session are available to any other session whose user has been granted select on the table.
D. A GLOBAL TEMPORARY TABLE's definition is available to multiple sessions.
E. GLOBAL TEMPORARY TABLE space allocation occurs at session start.
F. A DELETE command on a GLOBAL TEMPORARY TABLE cannot be rolled back.

Answer: A,B,D

NEW QUESTION # 256
View the exhibit and examine the structure of the CUSTOMERS table.

Which two tasks would require subqueries or joins to be executed in a single statement? (Choose two.)

A. listing of customers who do not have a credit limit and were born before 1980
B. finding the number of customers, in each city, whose credit limit is more than the average credit limit of all the customers
C. listing of those customers, whose credit limit is the same as the credit limit of customers residing in the city 'Tokyo'.
D. finding the number of customers, in each city, whose marital status is 'married'.
E. finding the average credit limit of male customers residing in 'Tokyo' or 'Sydney'

Answer: B,C

NEW QUESTION # 257
......

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