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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Controlling User Access | 5% | - Roles creation and privilege assignment - Granting privileges on tables - System vs object privileges |
| Topic 2: Retrieving and Sorting Data | 15% | - DEFINE and VERIFY commands - Using SELECT statement and column aliases - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword - Operator precedence rules - Sorting query results |
| Topic 3: DDL for Tables and Relationships | 15% | - Constraints management - Drop columns, set unused columns - Views management - CREATE TABLE statement - Table structure, columns, data types - TRUNCATE TABLE statement - Temporary and external tables |
| Topic 4: Data Dictionary and Time Zones | 5% | - Using data dictionary views - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 5: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
| Topic 6: Using Functions | 25% | - NVL, NULLIF, COALESCE functions - Group functions and grouping data - ROUND, TRUNC, MOD functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Date arithmetic and date functions - Restricting group results - Nested functions - Data type conversion: implicit and explicit - Character functions for string manipulation |
| Topic 7: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage synonyms - Create and manage indexes |
| Topic 8: Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements - Using ORDER BY with set operations |
| Topic 9: Managing Tables with DML | 5% | - Transaction management and control - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations |
| Topic 10: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| 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:
1. Which operator can be used in a multiple-row subquery to match a single value to a list of values?
A) EXISTS
B) NOT NULL
C) IN
D) =
2. Which command is used to add a new column to an existing table?
A) ALTER COLUMN
B) ADD COLUMN
C) ALTER TABLE
D) MODIFY COLUMN
3. Which SQL function converts a string representation of a date into a date data type?
A) CAST_TO_DATE
B) TO_DATE
C) CONVERT_TO_DATE
D) DATE_CONVERT
4. What is the result of using the following SQL query?
SELECT 100 + NULL AS result;
A) 100
B) NULL
C) An error
D) 0
5. What happens if a privilege is revoked from a user who has granted the same privilege to others?
A) The privilege is retained by the other users.
B) The privilege is transferred to another user.
C) The privilege cannot be revoked in this scenario.
D) The privilege is revoked from all other users.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: C | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: D |
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