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Oracle 1Z0-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Retrieving and Sorting Data | 15% | - Limiting rows and substitution variables - Operator precedence rules - Sorting query results - Operators, literals, DISTINCT keyword - Arithmetic expressions and NULL values - Using SELECT statement and column aliases - DEFINE and VERIFY commands |
| Topic 2: Data Dictionary and Time Zones | 5% | - Using data dictionary views - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 3: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 4: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 5: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage indexes - Create and manage synonyms |
| Topic 6: Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Transaction management and control - Multi-table INSERT and MERGE statements |
| Topic 7: Controlling User Access | 5% | - Roles creation and privilege assignment - System vs object privileges - Granting privileges on tables |
| Topic 8: DDL for Tables and Relationships | 15% | - CREATE TABLE statement - Drop columns, set unused columns - Views management - TRUNCATE TABLE statement - Constraints management - Temporary and external tables - Table structure, columns, data types |
| Topic 9: Using Functions | 25% | - Group functions and grouping data - Data type conversion: implicit and explicit - ROUND, TRUNC, MOD functions - NVL, NULLIF, COALESCE functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Restricting group results - Character functions for string manipulation - Date arithmetic and date functions - Nested functions |
| Topic 10: Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| Topic 11: Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects - Relationship between database and SQL |
Oracle Database 23ai SQL Associate Sample Questions:
1. Which command revokes a user's privilege to update a table?
A) REVOKE UPDATE ON table_name FROM user_name;
B) REMOVE UPDATE ON table_name FROM user_name;
C) DENY UPDATE ON table_name FROM user_name;
D) DELETE UPDATE ON table_name FROM user_name;
2. Which command would drop an index from a table?
A) DELETE INDEX
B) DROP INDEX
C) TRUNCATE INDEX
D) REMOVE INDEX
3. Which type of join returns all rows from the left table, even if there are no matches in the right table?
A) INNER JOIN
B) FULL OUTER JOIN
C) RIGHT OUTER JOIN
D) LEFT OUTER JOIN
4. Which data dictionary view provides information about all the columns in tables accessible to the current user?
A) DBA_TAB_COLUMNS
B) ALL of the above
C) USER_COLUMNS
D) ALL_TAB_COLUMNS
5. What does the following command do?
GRANT CREATE SESSION TO user_name;
A) Assigns the user to a specific role
B) Allows the user to create new sessions for other users
C) Grants the user the ability to connect to the database
D) Allows the user to create database objects
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: D | Question # 4 Answer: B | Question # 5 Answer: C |
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