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Updated: Oct 08, 2026
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Oracle 1z1-148 exam is a challenging certification that demonstrates a high level of expertise in advanced PL/SQL programming. Passing 1z1-148 exam can open up new career opportunities and increase earning potential. Candidates who are interested in taking 1z1-148 exam should have a solid foundation in PL/SQL programming and should be prepared to invest time and effort into studying and practicing advanced techniques.
Earning the Oracle 1z1-148 certification demonstrates a candidate's mastery of advanced PL/SQL programming concepts and their ability to apply these skills to real-world scenarios. Oracle Database: Advanced PL/SQL certification also indicates that the candidate has a thorough understanding of Oracle databases and can optimize their performance. Oracle Database: Advanced PL/SQL certification is highly valued in the industry and can open up new career opportunities for certified professionals.
Oracle 1z1-148 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle Database: Advanced PL/SQL |
| Exam Number: | 1Z0-148 |
| Exam Duration: | 120 minutes |
| Available Languages: | English (US) |
| Exam Format: | Multiple Select, Multiple Choice |
| Exam Price: | USD 245 |
| Passing Score: | 62% |
| Real Exam Qty: | 75-85 |
| Related Certifications: | Oracle Database SQL Certified Associate Oracle Database: Program with PL/SQL (1Z0-149) Oracle Database PL/SQL Developer Certified Professional |
| Certificate Validity Period: | No expiration |
| Recommended Training: | Oracle Database: Advanced PL/SQL Training |
| Exam Registration: | Oracle Education Pearson VUE Registration |
| Sample Questions: | Oracle 1z1-148 Sample Questions |
| Exam Way: | Computer-based testing at Pearson VUE centers; online proctored option available |
| Pre Condition: | Recommended: Pass 1Z0-071 (Oracle Database SQL) or 1Z0-144 / 1Z0-149 (Program with PL/SQL); strong PL/SQL experience |
| Official Syllabus URL: | https://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=5001&get_params=p_exam_id:1Z0-148 |
What is the duration, language, and format of 1z0-148 Exam
- Language: 1z0-148 offered in English (U.S.)
- Number of Questions: 75
- Format: Multiple choices, multiple answers
- Length of Examination: 120 minutes
- Passing score: 62%
1z0-148 Certification Path
The 1z0-148 Certification is expert level certification organized by Oracle mainly focussing to the area of database development and administration. There is prerequisite for this exam ,candidates must PASS one of the following exams :
- Oracle Database SQL | 1Z0-071
- Oracle Database 11g: Program with PL/SQL | 1Z0-144
Those professional who cleared any of the above mentioned exam and having keen to work in the stream of oracle database and want to learn about how to implement oracle 12C Database in the enterprise environment, then 1z0-148 is the right option for them. For more information related to Oracle-certification-track
Oracle 1z1-148 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Profiling, Tracing and Debugging | 11% | - Profiling performance with DBMS_PROFILER - Analyzing execution statistics - Tracing execution with DBMS_TRACE |
| Topic 2: Error Handling and Dynamic SQL | 12% | - DBMS_SQL package usage - Native Dynamic SQL - Advanced exception handling |
| Topic 3: Large Objects (LOBs) Management | 12% | - SecureFile and BasicFile LOBs - Using DBMS_LOB package - Internal vs External LOBs - Temporary LOB operations |
| Topic 4: Advanced Interface and External Routines | 12% | - Calling external C procedures - Calling Java from PL/SQL - Using database links and dynamic SQL |
| Topic 5: Managing PL/SQL Code and Dependencies | 12% | - Using PL/Scope and dictionary views - DBMS_METADATA package usage - Conditional compilation - Managing dependencies and invalidations - Using PL/SQL compiler settings and warnings |
| Topic 6: PL/SQL Performance and Result Caching | 15% | - DBMS_PARALLEL_EXECUTE - DBMS_RESULT_CACHE configuration - Intraunit inlining - Function result caching - Native vs interpreted compilation |
| Topic 7: Security and Code Robustness | 13% | - Definer's vs Invoker's Rights - Using DBMS_ASSERT - Fine-Grained Access Control (VPD) - Preventing SQL injection |
| Topic 8: Working with Collections | 13% | - Collection methods and best practices - Associative arrays, nested tables, VARRAYs - Bulk operations and FORALL/BULK COLLECT |
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