1Z0-082 Exam Certification - Valid 1Z0-082 Exam Notes

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Oracle 1Z0-082 Exam Syllabus Topics:

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

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Oracle Database Administration I Sample Questions (Q84-Q89):

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

You want to display the unique promotion costs in each promotion category.
Which two queries can be used? (Choose two.)

A. SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1;
B. SELECT DISTINCT promo_cost || ' in ` || DISTINCT promo_category FROM promotions ORDER BY 1;
C. SELECT promo_category, DISTINCT promo_cost FROM promotions ORDER BY 2;
D. SELECT DISTINCT promo_category || ` has ` || promo_cost AS COSTS FROM promotions ORDER BY 1;
E. SELECT promo_cost, promo_category FROM promotions ORDER BY by 1;

Answer: A,C

NEW QUESTION # 85
Which four statements are true regarding primary and foreign key constraints and the effect they can have on table data? (Choose four.)

A. Only the primary key can be defined at the column and table level
B. A table can have only one primary key and one foreign key
C. A table can have only one primary key but multiple foreign keys
D. It is possible for child rows that have a foreign key to be deleted automatically from the child table at the time the parent row is deleted
E. It is possible for child rows that have a foreign key to remain in the child table at the time the parent row is deleted
F. The foreign key columns and parent table primary key columns must have the same names
G. Primary key and foreign key constraints can be defined at both the column and table level

Answer: C,D,F,G

NEW QUESTION # 86
Which two statements are true about the Automatic Diagnostic Repository (ADR)? (Choose two.)

A. The ADR base defaults to $ORACLE_HOME/rdbms/admin ifneither DIAGNOSTIC_DEST nor ORACLE_BASE is set
B. It supports diagnostics for Automatic Storage Management (ASM)
C. It is held inside an Oracle database schema
D. The ADR base defaults to $ORACLE_HOME/dbs if the DIAGNOSTIC_DEST parameter and the ORACLE_BASE environment variable are not set
E. It supports diagnostics for Oracle Clusterware

Answer: A,C

NEW QUESTION # 87
Which three are types of segments in an Oracle Database? (Choose three.)

A. stored procedures
B. index
C. undo
D. tables
E. clusters
F. sequences

Answer: B,D,E

NEW QUESTION # 88
Examine this SQL statement:
SELECT cust_id, cust_last_name "Last Name"
FROM customers
WHERE country_id = 10
UNION
SELECT cust_id CUST_NO, cust_last_name
FROM customers
WHERE country_id = 30
Identify three ORDER BY clauses, any one of which can complete the query successfully. (Choose three.)

A. ORDER BY "Last Name"
B. ORDER BY CUST_NO
C. ORDER BY 2, 1
D. ORDER BY "CUST_NO"
E. ORDER BY 2, cust_id

Answer: B,C,E

NEW QUESTION # 89
......

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