1Z1-171 認證是業界最廣泛認可的IT技術認證之一，也是業界最權威、最受尊敬的認證之一。全新的微軟認證技術工程師認證提供IT專家一個更清楚明確的架構，讓他們展現其技術技巧、以及針對特殊開發人員之工作角色時所需的技能。如果你正在準備 1Z1-171 認證考試，為 Oracle 認證做最後衝刺，就可以使用 VCESoft 考試題庫參加 1Z1-171 考試，再加上你的認真態度，包您一次通過。
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Retrieving and Sorting Data | 15% | - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases - DEFINE and VERIFY commands - Operator precedence rules - Limiting rows and substitution variables - Sorting query results - Arithmetic expressions and NULL values |
| Topic 2: Controlling User Access | 5% | - Roles creation and privilege assignment - Granting privileges on tables - System vs object privileges |
| Topic 3: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 4: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types - Using data dictionary views |
| Topic 5: Using SET Operators | 5% | - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations |
| Topic 6: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 7: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage indexes - Create and manage synonyms |
| Topic 8: Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relationship between database and SQL - Relational database theoretical and physical aspects |
| Topic 9: Using Functions | 25% | - Date arithmetic and date functions - Group functions and grouping data - Restricting group results - Character functions for string manipulation - Nested functions - ROUND, TRUNC, MOD functions - Data type conversion: implicit and explicit - NVL, NULLIF, COALESCE functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions |
| Topic 10: DDL for Tables and Relationships | 15% | - Table structure, columns, data types - Drop columns, set unused columns - CREATE TABLE statement - Views management - Temporary and external tables - Constraints management - TRUNCATE TABLE statement |
| Topic 11: Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements - Transaction management and control |
不同的方式是可以達到相同的目的的，就看你選擇什麼樣的方式，走什麼樣的路。很多人都想通過Oracle 1Z1-171 認證考試來使自己的工作和生活有所提升，但是參加過Oracle 1Z1-171 認證考試的人都知道通過Oracle 1Z1-171 認證考試不是很簡單。有的人為了能通過Oracle 1Z1-171 認證考試花費了很多寶貴的時間和精力卻沒有成功。
問題 #82
Which Oracle SQL function returns the current date and time, including time zone information?
答案：A
問題 #83
Which operator can be used in a multiple-row subquery to match a single value to a list of values?
答案：C
問題 #84
What does the following query return?
SELECT department_id FROM departments
INTERSECT
SELECT department_id FROM employees;
答案：A
問題 #85
Which clause is used to allow a user to grant a privilege to others?
答案：A
問題 #86
Which of the following SET operators combines results from two queries and removes duplicates?
答案：D
問題 #87
......
1Z1-171 是一個占有一定比重的認證科目。由於人數太少，加上需求太大，導致擁有 1Z1-171 認證的人成為薪酬最高的資訊技術專業認證人員。由於技能是本身擁有的，加上在全球範圍內的幾乎所有國家都有類似需求。所以，Oracle 的 1Z1-171 認證為網路工程師打開了通往全球各地的大門。如果您通過了1Z1-171 的考試，將證明你的專業技能和貢獻，展示你的知識與能力。如果你被認證為一個 1Z1-171 網路公司的專家，你就會成為這個領域中最有知識的專家之一。
1Z1-171最新考題: https://www.vcesoft.com/1Z1-171-pdf.html