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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using Functions | 25% | - NVL, NULLIF, COALESCE functions - Group functions and grouping data - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Restricting group results - Date arithmetic and date functions - Data type conversion: implicit and explicit - Character functions for string manipulation - ROUND, TRUNC, MOD functions - Nested functions |
| Topic 2: Relational Database Concepts | 5% | - Relationship between database and SQL - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components |
| Topic 3: Retrieving and Sorting Data | 15% | - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases - Arithmetic expressions and NULL values - DEFINE and VERIFY commands - Sorting query results - Operator precedence rules - Limiting rows and substitution variables |
| Topic 4: DDL for Tables and Relationships | 15% | - Table structure, columns, data types - Temporary and external tables - Constraints management - TRUNCATE TABLE statement - Drop columns, set unused columns - CREATE TABLE statement - Views management |
| Topic 5: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - Transaction management and control - INSERT, UPDATE, DELETE operations |
| Topic 6: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 7: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views - INTERVAL data types |
| Topic 8: Using SET Operators | 5% | - Matching SELECT statements - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators |
| Topic 9: Controlling User Access | 5% | - Roles creation and privilege assignment - Granting privileges on tables - System vs object privileges |
| Topic 10: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 11: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage indexes - Create and manage synonyms |
>> Practice 1Z0-171 Exam Fee <<
The Oracle 1Z0-171 certification exam is a crucial part of career development in the tech sector. Cracking the Oracle Database 23ai SQL Associate (1Z0-171) exam strengthens your chances of landing high-paying jobs and promotions. Yet, preparing for the 1Z0-171 Exam can be challenging, and many working applicants struggle to find 1Z0-171 practice test questions they require to be successful in their pursuit.
NEW QUESTION # 17
What happens if a privilege is revoked from a user who has granted the same privilege to others?
Answer: B
NEW QUESTION # 18
What will the following query do?
DELETE FROM employees
WHERE department_id = 20;
Answer: C
NEW QUESTION # 19
What happens when the TRUNCATE TABLE statement is executed?
Answer: D
NEW QUESTION # 20
Which of the following is a valid reason to create a synonym?
Answer: A
NEW QUESTION # 21
Which INTERVAL data type would you use to store a period of time in years and months?
Answer: A
NEW QUESTION # 22
......
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