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Oracle 1Z0-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Using SELECT Statements | - Execute a basic SELECT statement - Use the WHERE clause to restrict rows - Use the ORDER BY clause to sort rows - Use the FETCH clause to limit rows returned |
| Topic 2: Using DML Statements | - Delete rows from a table - Insert rows into a table - Use the MERGE statement - Control transactions - Update rows in a table |
| Topic 3: Using DDL Statements | - Create and manage views - Create and manage tables - Create and manage indexes - Create and manage sequences - Create and manage constraints |
| Topic 4: Using SQL Functions | - Use conversion functions - Use character, number, and date functions in SELECT statements |
| Topic 5: Controlling User Access | - Grant and revoke privileges - Differentiate system privileges from object privileges - Create and manage roles |
| Topic 6: Using Subqueries | - Use multiple-row subqueries - Use single-row subqueries - Use correlated subqueries |
| Topic 7: Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Topic 8: Using Joins | - Use equijoins and non-equijoins - Use self-joins - Use cross joins - Use outer joins (LEFT, RIGHT, FULL) |
Oracle Database 23ai SQL Associate Sample Questions:
Which data dictionary view lists all indexes created by the current user?
- A. ALL_INDEXES
- B. INDEX_LIST
- C. USER_INDEXES
- D. DBA_INDEXES
Correct Answer: C 🗳️
What is the primary purpose of granting privileges in Oracle Database?
- A. To increase query performance
- B. To control user access to database objects and operations
- C. To create new tables and indexes
- D. To define the structure of database tables
Correct Answer: B 🗳️
What is the difference between UNION and UNION ALL?
- A. UNION includes all rows, while UNION ALL removes duplicates.
- B. UNION works with subqueries, while UNION ALL does not.
- C. UNION removes duplicates, while UNION ALL includes all rows, including duplicates.
- D. UNION combines columns, while UNION ALL combines rows.
Correct Answer: C 🗳️
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
Correct Answer: C 🗳️
Which clause in a SQL SELECT statement is used to define the columns to be retrieved?
- A. WHERE
- B. GROUP BY
- C. SELECT
- D. FROM
Correct Answer: C 🗳️
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