Exam Name: Oracle Database: Advanced PL/SQL
Certification Provider: Oracle
Corresponding Certification: Oracle Database 12c
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Updated: Oct 12, 2026
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Oracle 1z1-148 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle Database: Advanced PL/SQL |
| Exam Number: | 1Z0-148 |
| Available Languages: | English, Japanese |
| Real Exam Qty: | 70–85 |
| Exam Price: | USD $245 (approx.) |
| Exam Format: | Multiple choice |
| Exam Duration: | 120 minutes |
| Certificate Validity Period: | No expiry (certification does not expire) |
| Related Certifications: | Oracle Database SQL (1Z0-071) Oracle Database Program with PL/SQL (1Z0-149) |
| Passing Score: | 60% (approx.) |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Onsite at test center or online proctored delivery |
| Pre Condition: | Recommended: Experience with PL/SQL programming and Oracle Database, and passing Oracle Database SQL (1Z0-071) or equivalent foundation knowledge |
| Official Syllabus URL: | https://education.oracle.com/oracle-database-pl-sql-developer-certified-professional/trackp_OCPPLSQL19C |
Oracle 1z1-148 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Manipulating Large Objects (LOBs) | - Create and maintain LOB data types and use DBMS_LOB |
| Designing PL/SQL Code | - Use of DBMS_SQL functions and advanced constructs - Guidelines for cursor design and use of cursor variables |
| Security and Code Robustness | - Implement error handling and mitigate SQL injection |
| Performance and Caching | - Optimize PL/SQL performance, result caching and parallel execution |
| Working with Collections | - Create and manage nested tables, varrays, associative arrays |
| Analyzing and Profiling PL/SQL Code | - Trace and profile code using supplied packages |
| Advanced Interface Methods | - Execute external C programs and Java programs from PL/SQL |
1z1-148 Exam Practice FAQ
Memorizing which option is correct works only until the question is reworded. Understanding the concept behind each 1z1-148 question lets you handle variations with confidence. Take notes as you practice, mark the key points, and your study sessions build real, durable knowledge.
The Oracle Database: Advanced PL/SQL practice questions are organized around the official exam objectives. Key topics include:
- Manipulating Large Objects (LOBs) ()
- Advanced Interface Methods ()
- Designing PL/SQL Code ()
Questions across these topics span a range of difficulty levels, so both newer and experienced candidates find appropriate challenges.
The Oracle Database: Advanced PL/SQL exam contains 70–85 questions, and you will have 120 minutes minutes to complete them. Practicing within the same limits builds the pacing the real exam demands.
This package includes 108 practice questions for the Oracle Database: Advanced PL/SQL exam. Every answer is verified by an experienced team of experts, so you can trust what you study.
Recommended: Experience with PL/SQL programming and Oracle Database, and passing Oracle Database SQL (1Z0-071) or equivalent foundation knowledge
You can confirm the current eligibility requirements on the official 1z1-148 exam page before you register.
The Oracle Database: Advanced PL/SQL exam requires a score of 60% (approx.) to pass, and the official registration fee is USD $245 (approx.). Because the fee is significant, preparing thoroughly the first time is the practical choice.
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Oracle Database: Advanced PL/SQL Sample Questions:
Examine the code:
Which two blocks can be used to complete the executable section such that LIST2 is dense? (Choose two.)
- A. idx:= list1.FIRST; LOOP
EXIT WHEN idx IS NULL;
list2(list2.COUNT + 1) := list1(idx);
idx := list1.NEXT(idx);
END LOOP; - B. FOR idx IN list1.FIRST .. list1.LAST LOOP
list2(idx) := list1(idx);
END LOOP; - C. idx:= list1.FIRST;
WHILE (idx IS NOT NULL) LOOP
list2(list2.COUNT + 1) := list1(idx);
idx := list1.NEXT(idx);
END LOOP; - D. FOR idx IN list1.FIRST .. list1.LAST LOOP
IF list1.EXISTS(idx) THEN
list2(idx) := list1(idx);
END IF;
END LOOP; - E. FORALL idx IN list1.FIRST ..list1.LAST LOOP
list2(list2.COUNT + 1) := list1(idx);
Correct Answer: C,E 🗳️
Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).
Which PRAGMA statement may enable associated PL/SQL functions to run more efficiently when called from SQL?
- A. PRAGMA SERIALLY_REUSABLE;
- B. PRAGMA UDF;
- C. PRAGMA AUTONOMOUS_TRANSACTION;
- D. PRAGMA INLINE ('<function_name>', 'YES');
Correct Answer: B 🗳️
Examine this code executed in the ORA1 schema:
Examine this code executed by DBA_USER who has been granted the DBA role:
REVOKE INHERIT PRIVILEGES ON USER dba_user FROM PUBLIC;
Examine this query:
SELECT return_date (1) FROM dual;
What is the result of executing this query in the DBA_USER schema?
- A. It will execute successfully and return the date but the DBA role will not be granted to ORA1.
- B. It will fail with a runtime error complaining of insufficient INHERIT PRIVILEGES.
- C. It will execute successfully, return the date and the DBA role will be granted to ORA1.
- D. It will fail with a compile-time error.
Correct Answer: C 🗳️
You create this package and procedure:
Which two blocks will execute without errors? (Choose two.)
- A. Option B
- B. Option A
- C. Option D
- D. Option C
- E. Option E
Correct Answer: A,E 🗳️
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. 1 and 4
- B. 2 and 4
- C. 1 and 3
- D. 2, 3 and 4
- E. 2 and 3
Correct Answer: B 🗳️
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