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Oracle 1Z0-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - Transaction management and control - INSERT, UPDATE, DELETE operations |
| Topic 2: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage synonyms - Create and manage indexes |
| Topic 3: DDL for Tables and Relationships | 15% | - Table structure, columns, data types - CREATE TABLE statement - Temporary and external tables - Views management - Drop columns, set unused columns - Constraints management - TRUNCATE TABLE statement |
| Topic 4: Data Dictionary and Time Zones | 5% | - Using data dictionary views - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 5: Using SET Operators | 5% | - Matching SELECT statements - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators |
| Topic 6: Using Functions | 25% | - Data type conversion: implicit and explicit - Date arithmetic and date functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Group functions and grouping data - ROUND, TRUNC, MOD functions - Restricting group results - Character functions for string manipulation - Nested functions - NVL, NULLIF, COALESCE functions |
| Topic 7: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 8: Retrieving and Sorting Data | 15% | - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword - Operator precedence rules - Using SELECT statement and column aliases - Sorting query results - DEFINE and VERIFY commands |
| Topic 9: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components - Relationship between database and SQL |
| Topic 10: Controlling User Access | 5% | - Roles creation and privilege assignment - Granting privileges on tables - System vs object privileges |
| Topic 11: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
Oracle Database 23ai SQL Associate Sample Questions:
1. How does SQL handle NULL values in arithmetic expressions?
A) Treats them as zero
B) Produces a NULL result
C) Produces an error
D) Treats them as the largest possible number
2. Which of the following statements creates an ascending sequence starting at 100 and incrementing by 10?
A) CREATE SEQUENCE seq_1 START WITH 100 INCREMENT BY 10;
B) CREATE SEQUENCE seq_1 START WITH 10 INCREMENT BY 100;
C) CREATE SEQUENCE seq_1 START WITH 10 INCREMENT BY -100;
D) CREATE SEQUENCE seq_1 START WITH 100 INCREMENT BY -10;
3. What is the purpose of using external tables in Oracle Database?
A) To create temporary tables for session-specific data
B) To store backup copies of database tables
C) To improve the performance of complex queries
D) To manage data stored in external files using SQL
4. Which function is used to convert a string to uppercase in SQL?
A) CONVERT_UPPER
B) CASE_UPPER
C) UPPER
D) TO_UPPERCASE
5. What will the following SQL query return?
SELECT TRUNC(15.678, 2) AS truncated_value FROM dual;
A) 15.68
B) 15.67
C) 15.6
D) 15.678
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: B |
