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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Retrieving and Sorting Data | 15% | - Arithmetic expressions and NULL values - Operator precedence rules - Operators, literals, DISTINCT keyword - Limiting rows and substitution variables - DEFINE and VERIFY commands - Sorting query results - Using SELECT statement and column aliases |
| Topic 2: Data Dictionary and Time Zones | 5% | - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types |
| Topic 3: DDL for Tables and Relationships | 15% | - TRUNCATE TABLE statement - Drop columns, set unused columns - Table structure, columns, data types - Constraints management - Views management - CREATE TABLE statement - Temporary and external tables |
| Topic 4: Using Functions | 25% | - Date arithmetic and date functions - NVL, NULLIF, COALESCE functions - Restricting group results - Group functions and grouping data - ROUND, TRUNC, MOD functions - Nested functions - Data type conversion: implicit and explicit - Character functions for string manipulation - TO_CHAR, TO_NUMBER, TO_DATE conversion functions |
| Topic 5: Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
| Topic 6: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 7: Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relationship between database and SQL - Relational database theoretical and physical aspects |
| Topic 8: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 9: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage indexes - Create and manage synonyms |
| Topic 10: Using SET Operators | 5% | - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements |
| Topic 11: Controlling User Access | 5% | - Granting privileges on tables - Roles creation and privilege assignment - System vs object privileges |
To pass the Oracle 1Z1-171 exam on the first try, candidates need Oracle Database 23ai SQL Associate updated practice material. Preparing with real 1Z1-171 exam questions is one of the finest strategies for cracking the exam in one go. Students who study with Oracle 1Z1-171 Real Questions are more prepared for the exam, increasing their chances of succeeding.
NEW QUESTION # 52
Which data dictionary view provides information about all the columns in tables accessible to the current user?
Answer: C
NEW QUESTION # 53
Which SQLPlus command displays defined substitution variable values?
Answer: C
NEW QUESTION # 54
What is the result of using the following SQL query?
SELECT 100 + NULL AS result;
Answer: D
NEW QUESTION # 55
What happens when a temporary table is created in Oracle Database?
Answer: A
NEW QUESTION # 56
Which function returns the current system date and time in the database session's time zone?
Answer: B
NEW QUESTION # 57
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