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| Section | Weight | Objectives |
|---|---|---|
| Retrieving and Sorting Data | 15% | - DEFINE and VERIFY commands - Sorting query results - Operator precedence rules - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
| Data Dictionary and Time Zones | 5% | - INTERVAL data types - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Using Functions | 25% | - Data type conversion: implicit and explicit - Date arithmetic and date functions - NVL, NULLIF, COALESCE functions - Nested functions - Character functions for string manipulation - Restricting group results - Group functions and grouping data - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - ROUND, TRUNC, MOD functions |
| Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| DDL for Tables and Relationships | 15% | - Drop columns, set unused columns - Table structure, columns, data types - Temporary and external tables - TRUNCATE TABLE statement - CREATE TABLE statement - Views management - Constraints management |
| Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
| Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
The Oracle 1Z1-171 certification exam has grown in popularity in today's modern Oracle era. Success in the 1Z1-171 exam gives aspirants the chance to upskill and remain competitive in the challanging job market. Those who successfully crack the Oracle Database 23ai SQL Associate (1Z1-171) test prove to their employers that they are skilled enough to get well-paying jobs and promotions. Itexamguide is aware that preparing with invalid Oracle 1Z1-171 Exam Questions wastes money and time.
NEW QUESTION # 71
What is a sequence in Oracle Database?
Answer: B
NEW QUESTION # 72
Which of the following best describes a relational database?
Answer: D
NEW QUESTION # 73
What does the INTERSECT operator do in SQL?
Answer: B
NEW QUESTION # 74
What does the following SQL query do?
SELECT *
FROM employees e
JOIN employees m ON e.manager_id = m.employee_id;
Answer: D
NEW QUESTION # 75
Which of the following is a valid reason to create a synonym?
Answer: D
NEW QUESTION # 76
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