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Oracle 1z0-082 Korean Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| 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 |
| Managing Users, Roles, and Privileges | - Create and manage roles - Create and manage database user accounts - Grant and revoke privileges - Differentiate system privileges and object privileges |
| Displaying Data from Multiple Tables Using Joins | - Use CROSS joins - Use Equijoins and Non-equijoins - Describe different types of joins and their features - Use OUTER joins (LEFT, RIGHT, FULL) - Join a table to itself using self-join |
| Using the Set Operators | - Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) - Use set operators to combine multiple queries into a single query |
| Understanding Oracle Database Architecture - Oracle Database Instance | - Describe the background processes - Understand Oracle Database instance management - Explain the memory structures (SGA, PGA) |
| Introduction to Oracle Database | - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) - Describe Oracle Database Cloud Service (DBCS) architecture and features - Describe Oracle Database instance and memory structures - Describe Oracle Database architecture - Explain Oracle Database server architecture - Explain database storage structures (data blocks, segments, tablespaces, data files) |
| Using Single-Row Functions to Customize Output | - Describe various types of functions available in SQL - 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 |
| Using Conversion Functions and Conditional Expressions | - Use the CAST function for data type conversion - Use nested functions - Apply the NVL, NULLIF, and COALESCE functions - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions |
| Restricting and Sorting Data | - 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 - Use comparison operators and logical operators (AND, OR, NOT) |
| Using Subqueries to Solve Queries | - Use scalar subqueries in SQL - Define subqueries - Use subqueries in the WHERE clause and HAVING clause - 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) |
| Managing Data in Different Time Zones | - Describe the use of datetime functions (CURRENT_DATE, EXTRACT, LOCALTIMESTAMP) - Use various datetime data types (DATE, TIMESTAMP, INTERVAL) - Explain the concepts of time zones and daylight savings |
| 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 |
| Understanding Oracle Database Architecture - Database Storage Structures | - Describe tablespaces and data files - Describe the logical and physical database structures - Manage space in tablespaces - Create and manage tablespaces |
| Managing Oracle Database Instances | - Manage initialization parameter files (SPFILE, PFILE) - View the alert log and access dynamic performance views - Start up and shut down an Oracle Database instance - Use the Automatic Diagnostic Repository (ADR) |
| 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) |
| Retrieving Data using the SQL SELECT Statement | - Use the ORDER BY clause - Describe how schema objects work - List the capabilities of SQL SELECT statements - Use SQL row functions (character, number, date, conversion, general) - Execute a basic SELECT statement - Use scalar and correlated subqueries |
Oracle Database Administration I (1z0-082 Korean Version) Sample Questions:
smallfile 테이블스페이스에 대한 다음 설명 중 맞는 것은 무엇입니까?
- A. 세그먼트는 여러 데이터 파일에 걸쳐 있을 수 있습니다.
- B. 범위 위치 메타데이터는 기본적으로 데이터 사전에 저장됩니다.
- C. 데이터 파일의 수는 스토리지 어레이의 크기에 의해서만 제한됩니다.
- D. 세그먼트는 여러 테이블스페이스에 걸쳐 있을 수 있습니다.
- E. 최대 파일 크기는 논리 볼륨 관리자가 스트라이핑을 지원하는 경우에만 무제한으로 설정할 수 있습니다.
Correct Answer: A 🗳️
Enterprise Manager Database Express에 대한 올바른 설명 두 가지는 무엇입니까? (두 가지를 선택하세요.)
- A. 데이터베이스를 ARCHIVELOGMODE로 전환하는 데 사용할 수 있습니다.
- B. 서로 다른 호스트의 데이터베이스에 대한 Database Express 구성에 동일한 포트 번호를 사용할 수 있습니다.
- C. 데이터베이스가 열려 있을 때만 사용 가능
- D. 동일한 호스트의 여러 데이터베이스에 대한 여러 Database Express 구성에 동일한 포트 번호를 사용할 수 있습니다.
- E. 데이터베이스 복구를 수행하는 데 사용할 수 있습니다.
Correct Answer: A,D 🗳️
Explanation: Only visible for Test4Engine members. You can sign-up / login (it's free).
UNION 및 UNION ALL 연산자에 대해 참인 두 문장은 무엇입니까? (두 가지를 선택하세요.)
- A. 중복 검사 중에 NULLS는 무시되지 않습니다.
- B. 중복은 UNION ALL 연산자에 의해 자동으로 제거됩니다.
- C. 출력은 UNION ALL 연산자로 정렬됩니다.
- D. 각 SELECT 문에서 선택되는 열의 개수는 동일해야 합니다.
- E. 각 SELECT 문에서 선택된 컬럼의 이름은 동일해야 합니다.
Correct Answer: A,D 🗳️
Oracle 데이터베이스의 뷰에 대해 참인 세 가지 설명은 무엇입니까? (3개를 선택하세요.)
- A. 정의 쿼리에 GROUP BY 절이 포함된 보기를 사용하여 하나 이상의 행을 삭제하면 오류가 발생합니다.
- B. 보기를 생성하려면 보기의 정의 쿼리에 있는 테이블이 항상 존재해야 합니다.
- C. WITH CHECK 절은 뷰를 쿼리할 때 특정 행이 표시되지 않도록 합니다.
- D. 데이터 조작 언어(DML)는 뷰에서 항상 사용할 수 있습니다.
- E. 보기에 대한 권한을 다시 부여할 필요 없이 보기를 업데이트할 수 있습니다.
- F. 정의 쿼리에 GROUP BY 절이 포함된 뷰를 사용하여 하나 이상의 행을 삽입하면 오류가 발생합니다.
- G. WITH CHECK 절은 특정 행이 업데이트되거나 삽입되는 것을 방지합니다.
Correct Answer: B,D,F 🗳️
OLTP에 적합한 테이블 압축 방식을 사용하고자 하는데, 그 방식은 다음과 같은 조건을 충족해야 합니다.
1. 해당 테이블에 대한 모든 DML 문에 대해 행을 압축합니다.
2. 압축과 관련된 오버헤드를 최소화합니다.
이 경우에 가장 적합한 압축 옵션은 무엇입니까?
- A. 아카이브용 컬럼 스토어 압축
- B. 행 저장 압축 기본
- C. 행 저장 압축 고급
- D. 쿼리를 위한 컬럼 스토어 압축
- E. 아카이브용 컬럼 스토어 압축(낮음)
Correct Answer: C 🗳️
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