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Oracle 1Z0-082 Exam Syllabus Topics:

Section	Objectives
Retrieving Data using the SQL SELECT Statement	- Use SQL row functions (character, number, date, conversion, general) - List the capabilities of SQL SELECT statements - Use the ORDER BY clause - Use scalar and correlated subqueries - Describe how schema objects work - Execute a basic SELECT statement
Understanding Oracle Database Architecture - Oracle Database Instance	- Understand Oracle Database instance management - Describe the background processes - Explain the memory structures (SGA, PGA)
Working with Oracle Cloud Exadata Express Cloud Service	- Identify the prerequisites for Exadata Express Cloud Service - Provision and manage an Exadata Express Cloud Service instance - Describe the features and benefits of Exadata Express Cloud Service - Navigate the Exadata Express Cloud Service console
Using Single-Row Functions to Customize Output	- Describe the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) - Use character, number, and date functions in SELECT statements - Use CASE and DECODE for conditional expressions - Describe various types of functions available in SQL
Managing Users, Roles, and Privileges	- Differentiate system privileges and object privileges - Create and manage database user accounts - Grant and revoke privileges - Create and manage roles
Using Conversion Functions and Conditional Expressions	- Use nested functions - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Use the CAST function for data type conversion - Apply the NVL, NULLIF, and COALESCE functions
Using the Set Operators	- Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) - Use set operators to combine multiple queries into a single query
Managing Oracle Database Instances	- View the alert log and access dynamic performance views - Manage initialization parameter files (SPFILE, PFILE) - Start up and shut down an Oracle Database instance - Use the Automatic Diagnostic Repository (ADR)
Understanding Oracle Database Architecture - Database Storage Structures	- Describe tablespaces and data files - Create and manage tablespaces - Manage space in tablespaces - Describe the logical and physical database structures
Managing Data in Different Time Zones	- Explain the concepts of time zones and daylight savings - Describe the use of datetime functions (CURRENT_DATE, EXTRACT, LOCALTIMESTAMP) - Use various datetime data types (DATE, TIMESTAMP, INTERVAL)
Managing Schema Objects	- Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) - Manage sequences and synonyms - Create and modify tables - Create indexes and views
Displaying Data from Multiple Tables Using Joins	- Describe different types of joins and their features - Use Equijoins and Non-equijoins - Join a table to itself using self-join - Use CROSS joins - Use OUTER joins (LEFT, RIGHT, FULL)
Introduction to Oracle Database	- Describe Oracle Database architecture - Explain database storage structures (data blocks, segments, tablespaces, data files) - Explain Oracle Database server architecture - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) - Describe Oracle Database Cloud Service (DBCS) architecture and features - Describe Oracle Database instance and memory structures
Reporting Aggregated Data Using the Group Functions	- Describe group functions (AVG, SUM, MIN, MAX, COUNT) - Use the GROUP BY clause to group data - Use the HAVING clause to filter grouped data
Restricting and Sorting Data	- Use the LIKE and IN operators - Use comparison operators and logical operators (AND, OR, NOT) - Use the WHERE clause to limit retrieved rows - Use the BETWEEN comparator - Sort data using the ORDER BY clause - Use the NULL operators (IS NULL, IS NOT NULL)
Using Subqueries to Solve Queries	- Define subqueries - Use scalar subqueries in SQL - Describe the types of subqueries (single-row, multi-row, multiple-column) - Use multiple-row subqueries with multiple-row operators (IN, ANY, ALL) - Use subqueries in the WHERE clause and HAVING clause - Use single-row subqueries with single-row and multiple-row operators

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Oracle Database Administration I Sample Questions (Q13-Q18):

NEW QUESTION # 13
You need to calculate the number of days from 1st January 2019 until today.
Dates are stored in the default format of DD-MON-RR.
Which two queries give the required output? (Choose two.)

A. SELECT TO_DATE(SYSDATE, `DD/MONTH/YYYY') ?`01/JANUARY/2019' FROM DUAL;
B. SELECT TO_CHAR(SYSDATE, `DD-MON-YYYY') ?'01-JAN-2019' FROM DUAL;
C. SELECT SYSDATE ?TO_DATE('01-JANUARY-2019') FROM DUAL;
D. SELECT ROUND(SYSDATE ?'01-JAN-2019') FROM DUAL;
E. SELECT ROUND(SYSDATE ?TO_DATE(`01/JANUARY/2019')) FROM DUAL;

Answer: B,D

NEW QUESTION # 14
The stores table has a column START_DATE of data type DATE, containing the date the row was inserted. You only want to display details of rows where START_DATE is within the last 25 months. Which where clause can be used?

A. WHERE TO_XUMBER(start_date - SYSDATE) <= 25
B. WHERE ADD_MONTHS<start_date, 25) <= SYSDATE
C. WHERE MON'THS_BETWEEN (start_date, SYSDATE) <= 25
D. WHERE MON'THS_BETWEEN (SYSDATE, start_date) <= 25

Answer: C

NEW QUESTION # 15
Which three Oracle database space management features will work with both Dictionary and Locally managed tablespaces? (Choose three.)

A. Oracle Managed Files (OMF)
B. Automatic data file extension (AUTOEXTEND)
C. Online table segment shrink
D. Capacity planning growth reports based on historical data in the Automatic Workload Repository (AWR)
E. Online index segment shrink

Answer: A,B,D

NEW QUESTION # 16
Which two statements are true about the ORDER BY clause when used with a SQL statement containing a SET operator such as UNION? (Choose two.)

A. Only column names from the first SELECT statement in the compound query are recognized
B. Each SELECT statement in the compound query must have its own ORDER BY clause
C. Each SELECT statement in the compound query can have its own ORDER BY clause
D. The first column in the first SELECT of the compound query with the UNION operator is used by default to sort output in the absence of an ORDER BY clause
E. Column positions must be used in the ORDER BY clause

Answer: A,C

NEW QUESTION # 17
Examine this command:
SQL> ALTER TABLE ORDERS SHRINK SPACE COMPACT
Which two statements are true?

A. The shrink operation causes rows to be moved to empty space starting from the beginning of the orders segment.
B. Queries and DML statements are allowed on ORDERS while the shrink is executing.
C. The high-water mark (HWM) of orders is adjusted.
D. Dependent indexes become UNUSABLE.
E. The shrink operation causes rows to be moved to empty space starting toward the end of the orders segment.
F. Only queries are allowed on ORDERS while the shrink is executing.

Answer: A,B

NEW QUESTION # 18
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