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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| DDL for Tables and Relationships | 15% | - TRUNCATE TABLE statement - Constraints management - CREATE TABLE statement - Drop columns, set unused columns - Table structure, columns, data types - Views management - Temporary and external tables |
| Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - Transaction management and control - INSERT, UPDATE, DELETE operations |
| Using SET Operators | 5% | - Matching SELECT statements - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators |
| Controlling User Access | 5% | - System vs object privileges - Granting privileges on tables - Roles creation and privilege assignment |
| Retrieving and Sorting Data | 15% | - Limiting rows and substitution variables - Arithmetic expressions and NULL values - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases - DEFINE and VERIFY commands - Operator precedence rules - Sorting query results |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage sequences - Create and manage indexes |
| Data Dictionary and Time Zones | 5% | - Using data dictionary views - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Relational Database Concepts | 5% | - Relationship between database and SQL - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects |
| Using Functions | 25% | - Data type conversion: implicit and explicit - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - ROUND, TRUNC, MOD functions - Nested functions - Restricting group results - Character functions for string manipulation - Group functions and grouping data - NVL, NULLIF, COALESCE functions - Date arithmetic and date functions |
| 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. What happens if a DELETE statement is executed without a WHERE clause?
A) Only the first row is deleted.
B) All rows in the table are deleted.
C) An error is raised.
D) No rows are deleted.
2. How can you ensure that data is sorted in descending order in a SQL query?
A) Use the ASC keyword
B) Use the DISTINCT keyword
C) Use the DESC keyword
D) Use the ORDER keyword
3. How can a synonym benefit database design?
A) It provides a consistent reference to database objects, even if their underlying names change.
B) It improves query execution time.
C) It enforces constraints on table columns.
D) It allows the renaming of columns in a table.
4. What is a role in Oracle Database?
A) A set of privileges that can be granted to users or other roles
B) A predefined SQL statement stored in the database
C) A user-defined function
D) A database object used to enforce constraints
5. Which clause is used to allow a user to grant a privilege to others?
A) WITH SHARE OPTION
B) WITH GRANT OPTION
C) WITH SELECT OPTION
D) WITH ADMIN OPTION
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: A | Question # 4 Answer: A | Question # 5 Answer: B |
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