Oracle 1z1-148 : Oracle Database: Advanced PL/SQL

1z1-148 real exams

Exam Code: 1z1-148

Exam Name: Oracle Database: Advanced PL/SQL

Updated: Sep 19, 2026

Q & A: 108 Questions and Answers

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Oracle 1z1-148, also known as the Oracle Database: Advanced PL/SQL Exam, is an advanced level certification for database programmers who want to validate their expertise in advanced PL/SQL programming. Oracle 1z1-148 certification aims to test your knowledge in advanced topics related to PL/SQL language, including dynamic SQL, external procedures, securing enterprise data and advanced error management.

Reference: https://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=5001&get_params=p_exam_id:1Z0-148

The candidate is required to have passed any of the following Oracle certification exams in order to pass the 1Z0-148 test and receive the Oracle DB PL/SQL Developer Certified Professional certificate:

  • 1Z0-144 (Oracle DB 11g)
  • 1Z0-061 (Oracle DB 12c: SQL Fundamentals). This exam is going to be retired on November 30, 2019.
  • 1Z0-071 (Oracle Database SQL)

Those students who wish to take the exam have to pay 245$. Registration for the test can be done online at the Pearson VUE website.

Preparing for the Oracle 1z1-148 certification exam requires a significant amount of time and effort. It is important to have a thorough understanding of advanced PL/SQL concepts and to be familiar with the Oracle database. There are many resources available to help you prepare for the exam, including study guides, practice exams, and training courses. With the right preparation and dedication, you can successfully pass the Oracle 1z1-148 certification exam and take your career to the next level.

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Oracle 1z1-148 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Managing PL/SQL Code and Dependencies12%- Conditional compilation
- Using PL/Scope and dictionary views
- DBMS_METADATA package usage
- Using PL/SQL compiler settings and warnings
- Managing dependencies and invalidations
Topic 2: Advanced Interface and External Routines12%- Using database links and dynamic SQL
- Calling external C procedures
- Calling Java from PL/SQL
Topic 3: Security and Code Robustness13%- Using DBMS_ASSERT
- Fine-Grained Access Control (VPD)
- Preventing SQL injection
- Definer's vs Invoker's Rights
Topic 4: Working with Collections13%- Associative arrays, nested tables, VARRAYs
- Collection methods and best practices
- Bulk operations and FORALL/BULK COLLECT
Topic 5: Large Objects (LOBs) Management12%- Using DBMS_LOB package
- Internal vs External LOBs
- SecureFile and BasicFile LOBs
- Temporary LOB operations
Topic 6: PL/SQL Performance and Result Caching15%- Intraunit inlining
- Function result caching
- DBMS_RESULT_CACHE configuration
- DBMS_PARALLEL_EXECUTE
- Native vs interpreted compilation
Topic 7: Error Handling and Dynamic SQL12%- DBMS_SQL package usage
- Advanced exception handling
- Native Dynamic SQL
Topic 8: Profiling, Tracing and Debugging11%- Profiling performance with DBMS_PROFILER
- Analyzing execution statistics
- Tracing execution with DBMS_TRACE

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