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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Using Joins | - Use cross joins - Use equijoins and non-equijoins - Use self-joins - Use outer joins (LEFT, RIGHT, FULL) |
| Using DDL Statements | - Create and manage views - Create and manage sequences - Create and manage constraints - Create and manage indexes - Create and manage tables |
| Using DML Statements | - Control transactions - Delete rows from a table - Insert rows into a table - Use the MERGE statement - Update rows in a table |
| Controlling User Access | - Differentiate system privileges from object privileges - Grant and revoke privileges - Create and manage roles |
| Using Subqueries | - Use single-row subqueries - Use correlated subqueries - Use multiple-row subqueries |
| Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Using SELECT Statements | - Use the FETCH clause to limit rows returned - Execute a basic SELECT statement - Use the WHERE clause to restrict rows - Use the ORDER BY clause to sort rows |
| Using SQL Functions | - Use conversion functions - Use character, number, and date functions in SELECT statements |
Oracle Database 23ai SQL Associate Sample Questions:
What is the purpose of the MERGE statement in SQL?
- A. To update existing rows or insert new rows in a target table
- B. To combine the results of two queries
- C. To join two tables into one
- D. To delete duplicate rows from a table
Correct Answer: A 🗳️
What does a Cartesian product in SQL result from?
- A. An OUTER JOIN with NULL values
- B. An INNER JOIN without specifying join conditions
- C. A NATURAL JOIN without specifying join conditions
Correct Answer: B 🗳️
Which of the following data dictionary views provides information about constraints on tables?
- A. DBA_CONSTRAINTS
- B. All of the above
- C. ALL_CONSTRAINTS
- D. USER_CONSTRAINTS
Correct Answer: B 🗳️
How does SQL handle NULL values in arithmetic expressions?
- A. Produces an error
- B. Treats them as zero
- C. Produces a NULL result
- D. Treats them as the largest possible number
Correct Answer: C 🗳️
What is the purpose of the SAVEPOINT statement?
- A. To save changes permanently
- B. To set a point within a transaction to which a rollback can occur
- C. To restart a transaction
- D. To delete data temporarily
Correct Answer: B 🗳️
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