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Oracle 1Z1-082 Exam Syllabus Topics:

Section	Objectives
Topic 1: Managing Data in Different Time Zones	- Describe the use of datetime functions (CURRENT_DATE, EXTRACT, LOCALTIMESTAMP) - Explain the concepts of time zones and daylight savings - Use various datetime data types (DATE, TIMESTAMP, INTERVAL)
Topic 2: Reporting Aggregated Data Using the Group Functions	- Use the GROUP BY clause to group data - Use the HAVING clause to filter grouped data - Describe group functions (AVG, SUM, MIN, MAX, COUNT)
Topic 3: Working with Oracle Cloud Exadata Express Cloud Service	- Describe the features and benefits of Exadata Express Cloud Service - Identify the prerequisites for Exadata Express Cloud Service - Provision and manage an Exadata Express Cloud Service instance - Navigate the Exadata Express Cloud Service console
Topic 4: Retrieving Data using the SQL SELECT Statement	- Execute a basic SELECT statement - Use scalar and correlated subqueries - List the capabilities of SQL SELECT statements - Describe how schema objects work - Use the ORDER BY clause - Use SQL row functions (character, number, date, conversion, general)
Topic 5: Using Subqueries to Solve Queries	- Use scalar subqueries in SQL - Use single-row subqueries with single-row and multiple-row operators - Use multiple-row subqueries with multiple-row operators (IN, ANY, ALL) - Use subqueries in the WHERE clause and HAVING clause - Describe the types of subqueries (single-row, multi-row, multiple-column) - Define subqueries
Topic 6: Managing Users, Roles, and Privileges	- Grant and revoke privileges - Create and manage roles - Differentiate system privileges and object privileges - Create and manage database user accounts
Topic 7: Managing Oracle Database Instances	- Manage initialization parameter files (SPFILE, PFILE) - Use the Automatic Diagnostic Repository (ADR) - Start up and shut down an Oracle Database instance - View the alert log and access dynamic performance views
Topic 8: Managing Schema Objects	- Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) - Create indexes and views - Create and modify tables - Manage sequences and synonyms
Topic 9: Using Conversion Functions and Conditional Expressions	- Use the CAST function for data type conversion - Apply the NVL, NULLIF, and COALESCE functions - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Use nested functions
Topic 10: Displaying Data from Multiple Tables Using Joins	- Use CROSS joins - Use OUTER joins (LEFT, RIGHT, FULL) - Describe different types of joins and their features - Use Equijoins and Non-equijoins - Join a table to itself using self-join
Topic 11: Using Single-Row Functions to Customize Output	- Use character, number, and date functions in SELECT statements - Describe the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) - Use CASE and DECODE for conditional expressions - Describe various types of functions available in SQL
Topic 12: Understanding Oracle Database Architecture - Database Storage Structures	- Manage space in tablespaces - Describe tablespaces and data files - Create and manage tablespaces - Describe the logical and physical database structures
Topic 13: Restricting and Sorting Data	- Use the LIKE and IN operators - Use the WHERE clause to limit retrieved rows - Use the NULL operators (IS NULL, IS NOT NULL) - Sort data using the ORDER BY clause - Use comparison operators and logical operators (AND, OR, NOT) - Use the BETWEEN comparator
Topic 14: Introduction to Oracle Database	- Explain Oracle Database server architecture - Describe Oracle Database instance and memory structures - Describe Oracle Database Cloud Service (DBCS) architecture and features - Explain database storage structures (data blocks, segments, tablespaces, data files) - Describe Oracle Database architecture - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others)
Topic 15: Understanding Oracle Database Architecture - Oracle Database Instance	- Describe the background processes - Explain the memory structures (SGA, PGA) - Understand Oracle Database instance management
Topic 16: Using the Set Operators	- Use set operators to combine multiple queries into a single query - Describe set operators (UNION, UNION ALL, INTERSECT, MINUS)

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1Z1-082 Learning Material: Oracle Database Administration I & 1Z1-082 Practice Test

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Oracle Database Administration I Sample Questions (Q125-Q130):

NEW QUESTION # 125
Which three statements are true regarding single row subqueries?

A. A SQL statement may have multiple single row subquery blocks.
B. They can be used in the having clause.
C. They must be placed on the left side of the comparison operator or condition.
D. They must be placed on the right side of the comparison operator or condition.
E. They must return a row to prevent errors in the SQL statement.
F. They can be used in the where clause.

Answer: A,B,F

NEW QUESTION # 126
Examine the description of the CUSTOMERS table:

For customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?

A. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level IS NOT NULL AND due_amount IS NOT NULL;
B. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level != NULL AND due_amount != NULL;
C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level <> NULL AND due_amount <> NULL;
D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level IS NOT NULL AND cust_credit_limit IS NOT NULL;
E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level != NULL AND cust_credit_level !=NULL;

Answer: D

NEW QUESTION # 127
You want to apply the principle of Least Privilege in all your live databases.
One of your requirements is to revoke unnecessary privileges from all users who have them using Privilege Analysis.
Which three types of analyses can be done using the DBMS_PRIVILEGE_CAPTURE package? (Choose three.)

A. analysis of privileges that a user has on their own schema objects that they did not use
B. analysis of privileges granted indirectly to a role that are then used by a user who has been granted that role
C. analysis of privileges granted directly to a role that are then used by a user who has been granted that role
D. analysis of privileges that a user has on their own schema objects that they did use
E. analysis of all privileges used by all users including administrative users in the database
F. analysis of all privileges used by all users but excluding administrative users in the database

Answer: A,B,E

Explanation:
Explanation/Reference: https://docs.oracle.com/database/121/ARPLS/d_priv_prof.htm#ARPLS74328

NEW QUESTION # 128
Which three are true about the Oracle Optimizer? (Choose three.)

A. It can re-optimize execution plans after previous executions detect suboptimal plans.
B. It determines the optimal table join order and method.
C. It will only generate SQL Plan Directives specific to a given SQL statement.
D. It can optimize only SELECT statements.
E. It generates execution plans for SQL statements based on relevant schema objects, system and session parameters, and information found in the Data Dictionary.
F. It updates stale object statistics in the Data Dictionary.

Answer: B,D,E

NEW QUESTION # 129
Which two statements are true about single row functions? (Choose two.)

A. CONCAT : can be used to combine any number of values
B. MOD : returns the quotient of a division operation
C. CEIL : can be used for positive and negative numbers
D. FLOOR : returns the smallest integer greater than or equal to a specified number
E. TRUNC : can be used with NUMBER and DATE values

Answer: C,E

Explanation:
Reference:
https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/Single-Row-Functions.html#GUID-B93F789D-B486-49FF-B0CD-0C6181C5D85C

NEW QUESTION # 130
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