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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Topic 2: Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements - Using ORDER BY with set operations |
| Topic 3: Retrieving and Sorting Data | 15% | - Operator precedence rules - Sorting query results - Arithmetic expressions and NULL values - DEFINE and VERIFY commands - Operators, literals, DISTINCT keyword - Limiting rows and substitution variables - Using SELECT statement and column aliases |
| Topic 4: Data Dictionary and Time Zones | 5% | - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views |
| Topic 5: DDL for Tables and Relationships | 15% | - Drop columns, set unused columns - Constraints management - Table structure, columns, data types - Temporary and external tables - CREATE TABLE statement - TRUNCATE TABLE statement - Views management |
| Topic 6: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
| Topic 7: Using Functions | 25% | - NVL, NULLIF, COALESCE functions - Data type conversion: implicit and explicit - Group functions and grouping data - Character functions for string manipulation - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Nested functions - Date arithmetic and date functions - Restricting group results - ROUND, TRUNC, MOD functions |
| Topic 8: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 9: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 10: Controlling User Access | 5% | - System vs object privileges - Granting privileges on tables - Roles creation and privilege assignment |
| Topic 11: Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
여러분이 우리Oracle 1Z0-171문제와 답을 체험하는 동시에 우리ExamPassdump를 선택여부에 대하여 답이 나올 것입니다. 우리는 백프로 여러분들한테 편리함과 통과 율은 보장 드립니다. 여러분이 안전하게Oracle 1Z0-171시험을 패스할 수 있는 곳은 바로 ExamPassdump입니다.
질문 # 39
Which of the following is a valid reason to create a synonym?
정답：D
질문 # 40
How does SQL handle NULL values in arithmetic expressions?
정답：C
질문 # 41
Which of the following can be achieved using a correlated subquery?
정답：D
질문 # 42
Which SQL keyword is used to remove duplicate rows from the result set of a query?
정답：C
질문 # 43
What is the purpose of the SAVEPOINT statement?
정답：C
질문 # 44
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