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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Using Functions | 25% | - Character functions for string manipulation - Date arithmetic and date functions - Restricting group results - NVL, NULLIF, COALESCE functions - Nested functions - ROUND, TRUNC, MOD functions - Data type conversion: implicit and explicit - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Group functions and grouping data |
| DDL for Tables and Relationships | 15% | - Table structure, columns, data types - Views management - Drop columns, set unused columns - Constraints management - Temporary and external tables - TRUNCATE TABLE statement - CREATE TABLE statement |
| Retrieving and Sorting Data | 15% | - DEFINE and VERIFY commands - Sorting query results - Using SELECT statement and column aliases - Operators, literals, DISTINCT keyword - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Operator precedence rules |
| Managing Tables with DML | 5% | - Transaction management and control - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations |
| Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views - INTERVAL data types |
| Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| Relational Database Concepts | 5% | - Relationship between database and SQL - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
Oracle Database 23ai SQL Associate Sample Questions:
1. Which type of privilege allows a user to perform administrative tasks, such as creating other users?
A) Schema privilege
B) Object privilege
C) System privilege
D) Table privilege
2. What is the purpose of the DBA_OBJECTS data dictionary view?
A) To provide information about all objects in the database
B) To monitor system performance
C) To show the current session details
D) To list all users in the database
3. Which INTERVAL data type would you use to store a period of time in years and months?
A) INTERVAL MONTH TO DAY
B) INTERVAL MINUTE TO HOUR
C) INTERVAL YEAR TO MONTH
D) INTERVAL DAY TO SECOND
4. What does a Cartesian product in SQL result from?
A) A NATURAL JOIN without specifying join conditions
B) An OUTER JOIN with NULL values
C) An INNER JOIN without specifying join conditions
5. Which of the following is an example of an object privilege?
A) DROP DATABASE
B) CREATE TABLE
C) ALTER USER
D) SELECT ON table_name
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: C | Question # 5 Answer: D |
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