Oracle - PL/SQL Architecture MCQ

Oracle – PL/SQL Architecture

1 / 25

1. What does DIANA stand for in the context of PL/SQL?

Database Instance Architecture

Data Initialization and Analysis

Database Information Analysis

Database Integrated ANAlysis

2 / 25

2. How does Oracle execute PL/SQL code?

Executes code in parallel

Uses DIANA to optimize execution

Interprets code line by line

Compiles code to machine code

3 / 25

3. Which execution authority model enforces the rights of the code’s definer?

Definer Rights Model

Invoker Rights Model

Combined Rights Model

Rights Overlap Model

4 / 25

4. In the Invoker Rights Model, who determines the rights for code execution?

Compiler

Code definer

Code invoker

Database administrator

5 / 25

5. What is the purpose of the “$IF” directive in conditional compilation?

To define program-specific settings

To exclude code when a condition is met

To create an error condition

To include code when a condition is met

6 / 25

6. When using conditional compilation, what does the “$ERROR” directive do?

Defines program constants

Excludes code when an error condition is met

Enables debugging mode

Throws an error when a condition is met

7 / 25

7. What function helps determine “Who Invoked Me?” in PL/SQL?

DBMS_INFO

INVOKING_USER

USER

CURRENT_USER

8 / 25

8. How can you constrain privileges in invoker rights model code?

By assigning roles to program units

Using invoker rights roles

Privileges cannot be constrained

Using definer rights roles

9 / 25

9. What does PL/SQL stand for in terms of Oracle?

Programming Language/Structured Query Language

Procedure Language/SQL

Processing Language/SQL

Pluggable Language/SQL

10 / 25

10. What is the primary function of the SGA in PL/SQL and Oracle database architecture?

Memory management

Code execution

Data storage

Query optimization

11 / 25

11. Which part of the PL/SQL architecture handles memory allocation for cursors and variables?

PGA

SGA

UGA

DIANA

12 / 25

12. What is the recommended approach when you run out of memory in PL/SQL?

Restart the database instance

Increase memory allocation limits

Optimize code for memory efficiency

Purge unnecessary data

13 / 25

13. When is native compilation typically recommended for PL/SQL code?

For interpreted code only

For complex, resource-intensive programs

For code in DIANA format

For small, simple programs

14 / 25

14. In native compilation, which part of the Oracle database is responsible for code execution?

CGA

SGA

PGA

UGA

15 / 25

15. What is the primary benefit of using conditional compilation in PL/SQL?

Improved error handling

Enhanced code readability

Faster code execution

Customized code behavior

16 / 25

16. What is the primary function of the $ERROR directive in PL/SQL conditional compilation?

To exclude code when a condition is met

To create an error condition

To define program-specific settings

To include code when a condition is met

17 / 25

17. In PL/SQL, what do “BEQUEATH CURRENT_USER” views help achieve?

Code obfuscation

Data compression

Proper privileges propagation

Enhanced query performance

18 / 25

18. What does the “INVOKING_USER” function return in PL/SQL?

The current user's username

The code invoker's username

The database administrator's username

The code definer's username

19 / 25

19. Which package in PL/SQL provides functions to query information about database objects?

DBMS_INFO

DBMS_METADATA

DBMS_DIANA

DBMS_QUERY

20 / 25

20. In PL/SQL, what does the “Rights Overlap Model” combine?

Definer rights and invoker rights

Compiler and interpreter

SGA and PGA

Conditionals and loops

21 / 25

21. When working with Postprocessed Code, what is typically the source of the code?

Database tables

A stored procedure

User input

A file on disk

22 / 25

22. What is the primary purpose of the “$ERROR” directive in conditional compilation?

To exclude code when a condition is met

To define program-specific settings

To create an error condition

To include code when a condition is met

23 / 25

23. What is the primary benefit of using invoker rights in PL/SQL?

Proper privilege propagation

Reduced memory consumption

Enhanced code performance

Improved code readability

24 / 25

24. In PL/SQL, what is the primary responsibility of the DIANA component?

Data encryption

Memory management

Query optimization

Code compilation

25 / 25

25. What does the PL/SQL Compiler limit in terms of code size and complexity?

Maximum number of variables

Maximum query length

Maximum nesting level

Maximum number of lines

Your score is

0%

Oracle – PL/SQL Architecture MCQ