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Oracle Database administrator roles are in great demand nowadays. The average salaries of Oracle 1Z0-068 Exam Certified professional in:
- India - 69,96,000 16,42,330 INR
- England - 71,000 POUND
- United State - 94,000 USD
- Europe - 80,000 Euro
Reference: https://education.oracle.com/oracle-database-administration-i/pexam_1Z0-082
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Oracle 1Z0-082 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Introduction to Oracle Database | - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) - Explain Oracle Database server architecture - Describe Oracle Database Cloud Service (DBCS) architecture and features - Describe Oracle Database architecture - Describe Oracle Database instance and memory structures - Explain database storage structures (data blocks, segments, tablespaces, data files) |
| Topic 2: Retrieving Data using the SQL SELECT Statement | - Use scalar and correlated subqueries - Execute a basic SELECT statement - Use the ORDER BY clause - Describe how schema objects work - Use SQL row functions (character, number, date, conversion, general) - List the capabilities of SQL SELECT statements |
| Topic 3: Using Conversion Functions and Conditional Expressions | - Use the CAST function for data type conversion - Use nested functions - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Apply the NVL, NULLIF, and COALESCE functions |
| Topic 4: Managing Schema Objects | - Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) - Create and modify tables - Manage sequences and synonyms - Create indexes and views |
| Topic 5: 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 6: Working with Oracle Cloud Exadata Express Cloud Service | - Identify the prerequisites for Exadata Express Cloud Service - Describe the features and benefits of Exadata Express Cloud Service - Navigate the Exadata Express Cloud Service console - Provision and manage an Exadata Express Cloud Service instance |
| Topic 7: Restricting and Sorting Data | - Use comparison operators and logical operators (AND, OR, NOT) - Use the WHERE clause to limit retrieved rows - Use the NULL operators (IS NULL, IS NOT NULL) - Use the BETWEEN comparator - Use the LIKE and IN operators - Sort data using the ORDER BY clause |
| Topic 8: Managing Oracle Database Instances | - Manage initialization parameter files (SPFILE, PFILE) - Start up and shut down an Oracle Database instance - Use the Automatic Diagnostic Repository (ADR) - View the alert log and access dynamic performance views |
| Topic 9: Managing Users, Roles, and Privileges | - Grant and revoke privileges - Create and manage database user accounts - Differentiate system privileges and object privileges - Create and manage roles |
| Topic 10: Understanding Oracle Database Architecture - Oracle Database Instance | - Explain the memory structures (SGA, PGA) - Describe the background processes - Understand Oracle Database instance management |
| 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: Displaying Data from Multiple Tables Using Joins | - Use CROSS joins - Describe different types of joins and their features - Use Equijoins and Non-equijoins - Join a table to itself using self-join - Use OUTER joins (LEFT, RIGHT, FULL) |
| Topic 13: Using Subqueries to Solve Queries | - Use scalar subqueries in SQL - Use subqueries in the WHERE clause and HAVING clause - Define subqueries - Use single-row subqueries with single-row and multiple-row operators - Describe the types of subqueries (single-row, multi-row, multiple-column) - Use multiple-row subqueries with multiple-row operators (IN, ANY, ALL) |
| Topic 14: Using Single-Row Functions to Customize Output | - Use character, number, and date functions in SELECT statements - 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) |
| Topic 15: Using the Set Operators | - Use set operators to combine multiple queries into a single query - Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) |
| Topic 16: 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 |
Oracle Database Administration I Sample Questions:
Which three statements are true about time zones, date data types, and timestamp data types in an Oracle database? (Choose three.)
- A. A TIMESTAMP data type column contains information about year, month, and day
- B. The CURRENT_TIMESTAMP function returns data without time zone information
- C. A TIMESTAMP WITH LOCAL TIMEZONE data type column is stored in the database using the time zone of the session that inserted the row
- D. The DBTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
- E. The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
Correct Answer: B,D,E π³οΈ
Which two statements are true about the configuration and use of UNDO_RETENTION with GURANTEED ? (Choose two.) RETENTION
- A. Unexpired UNDO is always retained.
- B. UNDO_RETENTION specifies for how long Oracle attempts to keep unexpired UNDO.
- C. Active UNDO is always retained.
- D. UNDO_RETENTION specifies for how long Oracle attempts to keep expired and unexpired UNDO.
- E. UNDO_RETENTION specifies how long all types of UNDO are retained.
Correct Answer: A,E π³οΈ
Which three functions are performed by dispatchers in a shared server configuration? (Choose three.)
- A. sending shared server session responses back to requesters on the appropriate connection
- B. checking for outbound shared server responses on the common outbound response queue
- C. broadcasting shared server session responses back to requesters on all connections
- D. sending each connection input request to the appropriate shared server input queue
- E. receiving inbound requests from processes using shared server connections
- F. writing inbound request to the common request queue from all shared server connections
Correct Answer: D,E,F π³οΈ
You execute this command:
During the export operation, you detach from the job by using CTRL+C and then execute this command:
Export> STOP_JOB=immediate
Are you sure you wish to stop the job ([yes]/no): yes
Which two statements are true about the job? (Choose two.)
- A. You can no longer monitor it
- B. It continues to run in the background
- C. You can reattach to it and monitor it
- D. It terminates
- E. It is paused and can be resumed
Correct Answer: A,D π³οΈ
Explanation: Only visible for UpdateDumps members. You can sign-up / login (it's free).
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 ROUND(SYSDATE ?TO_DATE(`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 TO_DATE(SYSDATE, `DD/MONTH/YYYY') ?`01/JANUARY/2019' FROM DUAL;
Correct Answer: B,D π³οΈ
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