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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using Functions | 25% | - Nested functions - Data type conversion: implicit and explicit - Group functions and grouping data - Date arithmetic and date functions - Restricting group results - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - NVL, NULLIF, COALESCE functions - Character functions for string manipulation - ROUND, TRUNC, MOD functions |
| Topic 2: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 3: Relational Database Concepts | 5% | - Relationship between database and SQL - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects |
| Topic 4: Using SET Operators | 5% | - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations |
| Topic 5: Retrieving and Sorting Data | 15% | - DEFINE and VERIFY commands - Operators, literals, DISTINCT keyword - Limiting rows and substitution variables - Operator precedence rules - Arithmetic expressions and NULL values - Sorting query results - Using SELECT statement and column aliases |
| Topic 6: Data Dictionary and Time Zones | 5% | - Using data dictionary views - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 7: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage synonyms - Create and manage sequences |
| Topic 8: Managing Tables with DML | 5% | - Transaction management and control - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations |
| Topic 9: DDL for Tables and Relationships | 15% | - TRUNCATE TABLE statement - Table structure, columns, data types - Drop columns, set unused columns - CREATE TABLE statement - Views management - Constraints management - Temporary and external tables |
| Topic 10: Controlling User Access | 5% | - Granting privileges on tables - Roles creation and privilege assignment - System vs object privileges |
| Topic 11: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
Oracle Database 23ai SQL Associate Sample Questions:
Question 1
Which of the following SQL commands retrieves data from a relational database?
A. INSERT
B. DELETE
C. UPDATE
D. SELECT
Question 2
What does the following query return?
SELECT employee_id
FROM employees
WHERE department_id IN (SELECT department_id FROM departments WHERE location_id = 1000);
A. Employees with salaries greater than 1000
B. Employees with no department
C. Employees working in location ID 1000
D. Departments located in location ID 1000
Question 3
How does SQL handle NULL values in arithmetic expressions?
A. Treats them as zero
B. Treats them as the largest possible number
C. Produces a NULL result
D. Produces an error
Question 4
Which SQL statement is used to create a table?
A. INSERT
B. CREATE TABLE
C. ALTER TABLE
D. ADD TABLE
Question 5
Which of the following is an example of an object privilege?
A. CREATE TABLE
B. ALTER USER
C. SELECT ON table_name
D. DROP DATABASE
Solutions:
| Question 1 Answer: D | Question 2 Answer: C | Question 3 Answer: C | Question 4 Answer: B | Question 5 Answer: C |
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