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Reference: https://education.oracle.com/oracle-database-administration-i/pexam_1Z0-082
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What is the duration, language, and format of Oracle 1z0-082: Oracle Database Administration I Exam
- Section 3: 33%
- Section 1: 60%
- Certification Validity period : 3 years.
- Passing score:
- This exam consists of 90 questions.
- There is a time limit of 140 minutes for the exam.
- The type of questions is Multiple Choice Questions.
- This exam is offered in only English.
- Section 2: 45%
Oracle database certifications require periodic recertification. To hold your certification inactive condition, you must update to the new edition within 1 year of Oracle's credential withdrawal.
Oracle 1Z0-082 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Using Subqueries to Solve Queries | - Use subqueries in the WHERE clause and HAVING clause - Use single-row subqueries with single-row and multiple-row operators - 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 scalar subqueries in SQL |
| Topic 2: Managing Users, Roles, and Privileges | - Differentiate system privileges and object privileges - Create and manage database user accounts - Create and manage roles - Grant and revoke privileges |
| Topic 3: Introduction to Oracle Database | - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) - Describe Oracle Database instance and memory structures - Explain Oracle Database server architecture - Explain database storage structures (data blocks, segments, tablespaces, data files) - Describe Oracle Database architecture - Describe Oracle Database Cloud Service (DBCS) architecture and features |
| Topic 4: 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 5: Displaying Data from Multiple Tables Using Joins | - Join a table to itself using self-join - Use Equijoins and Non-equijoins - Use CROSS joins - Use OUTER joins (LEFT, RIGHT, FULL) - Describe different types of joins and their features |
| Topic 6: Managing Schema Objects | - Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) - Create indexes and views - Manage sequences and synonyms - Create and modify tables |
| Topic 7: Using the Set Operators | - Use set operators to combine multiple queries into a single query - Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) |
| Topic 8: Retrieving Data using the SQL SELECT Statement | - Execute a basic SELECT statement - List the capabilities of SQL SELECT statements - Use SQL row functions (character, number, date, conversion, general) - Describe how schema objects work - Use the ORDER BY clause - Use scalar and correlated subqueries |
| Topic 9: 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) |
| Topic 10: Reporting Aggregated Data Using the Group Functions | - Use the HAVING clause to filter grouped data - Use the GROUP BY clause to group data - Describe group functions (AVG, SUM, MIN, MAX, COUNT) |
| Topic 11: Working with Oracle Cloud Exadata Express Cloud Service | - Describe the features and benefits of Exadata Express Cloud Service - Provision and manage an Exadata Express Cloud Service instance - Identify the prerequisites for Exadata Express Cloud Service - Navigate the Exadata Express Cloud Service console |
| Topic 12: Understanding Oracle Database Architecture - Database Storage Structures | - Create and manage tablespaces - Describe the logical and physical database structures - Describe tablespaces and data files - Manage space in tablespaces |
| Topic 13: Using Single-Row Functions to Customize Output | - Describe various types of functions available in SQL - Describe the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) - Use CASE and DECODE for conditional expressions - Use character, number, and date functions in SELECT statements |
| Topic 14: 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 |
| Topic 15: Understanding Oracle Database Architecture - Oracle Database Instance | - Understand Oracle Database instance management - Explain the memory structures (SGA, PGA) - Describe the background processes |
| Topic 16: Restricting and Sorting Data | - Sort data using the ORDER BY clause - 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 NULL operators (IS NULL, IS NOT NULL) - Use the BETWEEN comparator |
Oracle Database Administration I Sample Questions:
Which statement is true about aggregate functions?
- A. The AVG function implicitly converts NULLS to zero
- B. Aggregate functions can be nested to any number of levels
- C. Aggregate functions can be used in any clause of a SELECT statement
- D. The MAX and MIN functions can be used on columns with character data types
Correct Answer: B 🗳️
Which three statements are true concerning logical and physical database structures? (Choose three.)
- A. A segment's blocks can be of different sizes
- B. Segments can span multiple tablespaces
- C. A segment can span multiple data files in some tablespaces
- D. The extents of a segment must always reside in the same datafile
- E. A segment might have only one extent
- F. A smallfile tablespace might be bigger than a bigfile tablespace
- G. All tablespaces may have one or more data files
Correct Answer: B,E,F 🗳️
Which two actions can you perform using DBCA for an existing database?
- A. Change the server mode from dedicated to shared, and vice versa.
- B. Create nonstandard block size tablespaces.
- C. Change the character set.
- D. Create a template that can be used to clone the database.
- E. Create an additional listener.
Correct Answer: A,C 🗳️
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. The DBTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
- D. A TIMESTAMP WITH LOCAL TIMEZONE data type column is stored in the database using the time zone of the session that inserted the row
- E. The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
Correct Answer: B,C,E 🗳️
Which three files are used by conventional path SQL*Loader when the TABLE option is not specified? (Choose three.)
- A. password files
- B. control files
- C. dump files
- D. bad files
- E. input files
Correct Answer: B,D,E 🗳️
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