Try and practice the latest Oracle : 1z1-148 real questions & answers
Last Updated: Oct 17, 2026
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The pass rate for the 1z1-148 exam is genuinely low, and many candidates need two or three attempts — each one costing another registration fee and more weeks of study. In 2026, preparing thoroughly for one focused attempt with the Oracle Database: Advanced PL/SQL question bank at Actual4Cert is simply the cheaper strategy.
Oracle 1z1-148 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Working with Collections | 13% | - Associative arrays, nested tables, VARRAYs - Collection methods and best practices - Bulk operations and FORALL/BULK COLLECT |
| Topic 2: Advanced Interface and External Routines | 12% | - Calling external C procedures - Calling Java from PL/SQL - Using database links and dynamic SQL |
| Topic 3: Managing PL/SQL Code and Dependencies | 12% | - Managing dependencies and invalidations - Using PL/SQL compiler settings and warnings - Using PL/Scope and dictionary views - DBMS_METADATA package usage - Conditional compilation |
| Topic 4: Large Objects (LOBs) Management | 12% | - Temporary LOB operations - SecureFile and BasicFile LOBs - Internal vs External LOBs - Using DBMS_LOB package |
| Topic 5: Security and Code Robustness | 13% | - Preventing SQL injection - Definer's vs Invoker's Rights - Fine-Grained Access Control (VPD) - Using DBMS_ASSERT |
| Topic 6: Profiling, Tracing and Debugging | 11% | - Analyzing execution statistics - Profiling performance with DBMS_PROFILER - Tracing execution with DBMS_TRACE |
| Topic 7: PL/SQL Performance and Result Caching | 15% | - Intraunit inlining - Function result caching - Native vs interpreted compilation - DBMS_PARALLEL_EXECUTE - DBMS_RESULT_CACHE configuration |
| Topic 8: Error Handling and Dynamic SQL | 12% | - Advanced exception handling - DBMS_SQL package usage - Native Dynamic SQL |
The Oracle Database: Advanced PL/SQL Exam: What to Know First
Currency is maintained daily, not occasionally. Our IT staff reviews and updates the Oracle Database: Advanced PL/SQL question bank every day to keep it aligned with the live 1z1-148 exam. If a revision is underway when you buy or during your update period, we notify you and send the updated version as soon as it is ready — free within your 365 days of updates. You will never be left studying a stale edition without knowing it.
The 1z1-148 exam is the official assessment behind the Oracle Database: Advanced PL/SQL certification from Oracle, and its pass rate is genuinely low — many candidates need two or three attempts to get through. The difficulty is real, but it is also manageable: candidates who prepare with material aligned to the published objectives give themselves a far better starting position than those who walk in underprepared.
Registration for the 1z1-148 exam runs through these official channels:
Given how commonly this exam takes more than one attempt, schedule your sitting only when your practice results say you are ready.
The official outline divides the 1z1-148 exam into weighted domains, including:
- Error Handling and Dynamic SQL (12%)
- Working with Collections (13%)
- Advanced Interface and External Routines (12%)
The Oracle Database: Advanced PL/SQL question bank at Actual4Cert is updated daily against these same objectives, and the free practice test lets you sample that alignment yourself.
Oracle recommends these training resources for candidates:
Official training builds the foundation; a daily-reviewed practice bank with expert-verified answers builds the exam-day readiness. Use both.
Only while you want us to. Update notifications about the Oracle Database: Advanced PL/SQL materials are sent because they are useful; once you have passed the 1z1-148 exam, one email to our team opts you out completely — no junk mail, ever. Your personal information is kept secret and safe throughout, and never shared with third parties.
Passing the 1z1-148 exam requires 62%, and registration costs USD 245 — per attempt. With retakes so common on this exam, preparing properly for one focused attempt is the choice that protects your budget.
The 1z1-148 exam contains 75-85 questions with 120 minutes minutes to complete them. Practicing under the same time limit is the reliable way to make exam-day pacing feel familiar rather than frantic.
Recommended: Pass 1Z0-071 (Oracle Database SQL) or 1Z0-144 / 1Z0-149 (Program with PL/SQL); strong PL/SQL experience
Oracle Database: Advanced PL/SQL Sample Questions:
Examine these statements regarding the DBMS_RESULT_CACHE package:
1.DBMS_RESULT_CACHE provides subprograms to administer the part of the shared pool used by the PL/ SQL function result cache only.
2.DBMS_RESULT_CACHE provides subprograms to administer the part of the shared pool used by both the PL/SQL function result cache and the SQL result cache.
3.DBMS_RESULT_CACHE package is owned by the SYS user.
4.RESULT_CACHE_MODE can be set using a subprogram defined in the DBMS_RESULT_CACHE package.
Which set of statements is correct?
- A. 2 and 3
- B. 1 and 4
- C. 1 and 3
- D. 2, 3 and 4
- E. 2 and 4
Correct Answer: E 🗳️
The STUDENTS table exists in your schema.
Examine the DECLARE section of a PL/SQL block:
Which two blocks are valid?
- A. BEGINOPEN cursor1 FOR SELECT * FROM students;cursor2 :=cursor1;END;
- B. BEGINOPEN stcur;cursor1 :=stcur;END;
- C. BEGINOPEN stcur;cursor3 :=stcur;END;
- D. BEGINOPEN cursor1 FOR SELECT * FROM students;stcur :=cursor1;END;
- E. BEGINOPEN cursor3 FOR SELECT * FROM students;cursor1 :=cursor3;END;
Correct Answer: A,E 🗳️
Which statement is true in regard to minimizing attack surface during application design?
- A. All the code should run anonymously.
- B. Only one user account should be used.
- C. Reusable components should be developed and used extensively.
- D. Private functions and procedures should be declared in package specifications.
Correct Answer: C 🗳️
Refer to the Exhibit.
Examine this procedure created in a session where PLSQL_OPTIMIZE_LEVEL =2:
PL/SQL tracing in enabled in a user session using this command:
EXEC DBMS_TRACE.SET_PLSQL_TRACE (DBMS_TRACE.TRACE_ENABLED_LINES)
The procedure is executed using this command:
EXEC PRC_1
Examine the exhibit for the content of the PLSQL_TRACE_EVENTS table.
Why is tracing excluded from the PLSQL_TRACE_EVENTS table?
- A. PRC_1 is compiled with the default AUTHID DEFINER clause.
- B. Tracing is not enabled with the TRACE_ENABLED_CALLS option.
- C. DBMS_TRACE.TRACE_ENABLED_LINES traces only exceptions in subprograms.
- D. Tracing will be enabled only for the second execution of PRC_1.
- E. PRC_1 is not compiled with debugging information.
Correct Answer: E 🗳️
Which PRAGMA statement may enable associated PL/SQL functions to run more efficiently when called from SQL?
- A. PRAGMA AUTONOMOUS_TRANSACTION;
- B. PRAGMA INLINE ('<function_name>', 'YES');
- C. PRAGMA SERIALLY_REUSABLE;
- D. PRAGMA UDF;
Correct Answer: D 🗳️
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