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Oracle 1Z1-082 Exam Syllabus Topics:

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

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Oracle Database Administration I Sample Questions (Q49-Q54):

NEW QUESTION # 49
Which two statements are true about space-saving features in an Oracle Database? (Choose two.)

A. If they exist for a session, Private Temporary Tables (PTTs) are always dropped at the next COMMIT OR ROLLBACK statement
B. Private Temporary Tables (PTTS) store metadata in memory only
C. An index created with the UNUSABLE attribute has no segment
D. A table that is truncated will always have its segment removed
E. An index that is altered to be UNUSABLE will retain its segment

Answer: A,C

NEW QUESTION # 50
Which three statements are true about inner and outer joins? (Choose three.)

A. A full outer join must use Oracle syntax
B. Outer joins can only be used between two tables per query
C. An inner join returns matched rows
D. A left or right outer join returns only unmatched rows
E. A full outer join returns matched and unmatched rows
F. Outer joins can be used when there are multiple join conditions on two tables

Answer: C,D,E

Explanation:
Reference:
https://www.studytonight.com/dbms/joining-in-sql.php

NEW QUESTION # 51
Which two are true about RETENTION GUARANTEE? (Choose two.)

A. It is a static parameter.
B. It prevents FLASHBACK DATABASE operation failure.
C. It is a tablespace attribute.
D. It prevents "Snapshot too old" errors.
E. It prevents out-of-space errors.

Answer: B,C

NEW QUESTION # 52
Which two statements are true about the rules of precedence for operators? (Choose two.)

A. Multiple parentheses can be used to override the default precedence of operators in an expression
B. The concatenation operator | | is always evaluated before addition and subtraction in an expression
C. NULLS influence the precedence of operators in an expression
D. The + binary operator has the highest precedence in an expression in a SQL statement
E. Arithmetic operators with equal precedence are evaluated from left to right within an expression

Answer: A,D

Explanation:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/operators001.htm

NEW QUESTION # 53
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_AMOUNTFROM customersWHERE cust_income_level != NULLAND due_amount != NULL;
B. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND cust_credit_level !=NULL;
C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level <> NULLAND due_amount <> NULL;
D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level IS NOT NULLAND due_amount IS NOT NULL;
E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level IS NOT NULLAND cust_credit_limit IS NOT NULL;

Answer: E

NEW QUESTION # 54
......

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