1500 Questions | Oracle PL/SQL Developer Professional 2026

Develop and Implement Data Storage Solutions (20%): Focusing on optimization through indexing, partitioning, and compression, alongside robust data protection via security features.

Develop and Implement Complex Business Logic and Reporting (20%): Building advanced logic with PL/SQL constructs (loops, cursors), XML Database integration, and OLAP for high-level reporting.

Database Maintenance, Security, and Troubleshooting (20%): Scheduling jobs, managing backup/recovery, and diagnosing performance or integrity issues.

Develop and Implement Scalable and Transactional Solutions (20%): Designing ACID-compliant databases and implementing effective concurrency control mechanisms.

B. It reduces the number of context switches between the PL/SQL engine and the SQL engine.

C. It allows for the use of implicit cursors within a WHILE loop.

D. It bypasses all database constraints to ensure faster data insertion.

E. It converts the PL/SQL collection into a temporary physical table automatically.

F. It eliminates the need for any UNDO tablespace during the operation.

Correct Answer: B

Explanation:

A (Incorrect): FORALL does not handle automatic commits; transaction control remains the responsibility of the developer.

C (Incorrect): While it works with collections, its purpose is bulk DML, not managing standard loop cursor logic.

D (Incorrect): Constraints are still enforced during FORALL operations unless manually disabled.

E (Incorrect): It operates on collections in memory; it does not create physical tables.

F (Incorrect): DML operations within FORALL still generate undo data to support atomicity.

Question 2: Which clause should I use to modify an existing stored procedure without dropping it first, thereby preserving any granted object privileges?

B. UPDATE PROCEDURE

C. CREATE OR REPLACE PROCEDURE

D. MODIFY PROCEDURE

E. RECOMPILE PROCEDURE

F. FORCE PROCEDURE

Correct Answer: C

Explanation:

A (Incorrect): ALTER PROCEDURE is generally used for recompilation or changing specific settings, not for redefining the body logic.

B (Incorrect): UPDATE is a DML command for table data, not a DDL command for database objects.

D (Incorrect): MODIFY is not a valid keyword for procedure definition in Oracle.

E (Incorrect): This is not standard syntax for changing the source code.

F (Incorrect): FORCE is sometimes used in views, but not the standard way to redefine a procedure.

Question 3: In a highly concurrent environment, which feature ensures that a transaction is "Isolated" and follows ACID compliance?

B. Database Indexes.

C. Concurrency control mechanisms like Locking and Multiversion Read Consistency (MVRC).

D. The FOR loops construct.

E. XML Database publishing.

F. Table Compression.

Correct Answer: C

Explanation:

A (Incorrect): This is used for debugging and displaying messages.

B (Incorrect): Indexes improve search performance but do not manage transaction isolation.

D (Incorrect): Loops are logic flow controls, not transactional safety mechanisms.

E (Incorrect): This is for data formatting and subscription, not concurrency.

F (Incorrect): Compression saves storage space but has no impact on transaction isolation.

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