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  • Total Questions: 108
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The Oracle Database: Advanced PL/SQL exam is known for tricky wording and broad coverage. Working through 108 practice questions at ITCertMagic exposes your weak spots before they can cost you on exam day.

Oracle 1z0-148 Exam Overview:

Certification Vendor:Oracle
Exam Name:Oracle Database: Advanced PL/SQL
Exam Number:1Z0-148
Real Exam Qty:75-85
Related Certifications:Oracle Database: Program with PL/SQL (1Z0-149)
Oracle Database PL/SQL Developer Certified Professional
Oracle Database SQL Certified Associate
Available Languages:English (US)
Exam Format:Multiple Select, Multiple Choice
Passing Score:62%
Exam Duration:120 minutes
Exam Price:USD 245
Certificate Validity Period:No expiration
Recommended Training:Oracle Database: Advanced PL/SQL Training
Exam Registration:Oracle Education
Pearson VUE Registration
Sample Questions: DOWNLOAD DEMO
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

Oracle 1z0-148 Exam Syllabus Topics:

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

1z0-148 Exam FAQ: What Candidates Ask Most

The Oracle 1z0-148 exam, officially titled Oracle Database: Advanced PL/SQL, is the required test for earning the Oracle Advanced PL/SQL Developer Certified Professional certification, a credential at the Professional level. Passing it validates the skills Oracle expects from certified professionals, and it can also support progress toward related credentials such as Oracle Database PL/SQL Developer Certified Professional, Oracle Database SQL Certified Associate, Oracle Database: Program with PL/SQL (1Z0-149).

The 1z0-148 exam includes 75-85 questions, and you have 120 minutes to complete it. Before exam day, divide the available time by the question count so you know the pace you need to hold, and practice flagging time-consuming items for review instead of stalling on a single question. Timed sessions in the ITCertMagic test engine are the easiest way to build that rhythm before it counts.

You need 62% to pass the 1z0-148 exam, and the official registration fee is USD 245. Keep in mind that a failed attempt means paying that fee in full again for a retake, so avoid booking your seat on a hunch. Work through the ITCertMagic practice test until your scores sit comfortably above the passing requirement before you schedule the exam.

Oracle asks candidates to meet the following requirement before registering: Recommended: Pass 1Z0-071 (Oracle Database SQL) or 1Z0-144 / 1Z0-149 (Program with PL/SQL); strong PL/SQL experience. Exam policies do change, so confirm the latest details on the official exam page at https://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=5001&get_params=p_exam_id:1Z0-148 before you book.

You can book your seat through the official registration channels below:

The 1z0-148 exam is delivered in the following format: Computer-based testing at Pearson VUE centers; online proctored option available.

Oracle recommends the following official training for this exam:

A course builds the theory; practice turns it into exam-day performance. Once you finish a class, the 108 practice questions from ITCertMagic show you how the same knowledge appears in exam-style items.

Yes. ITCertMagic offers a free PDF demo of the Oracle Database: Advanced PL/SQL practice questions, so you can judge the quality and format before purchasing. After you buy, your purchase includes 365 days of free updates; if the product expires after that period, you can extend the update service at a 50% discount from your member zone.

Every ITCertMagic order is covered by a 100% Money Back Guarantee. If you take the corresponding 1z0-148 exam within 60 days of purchase and do not pass, send a scan of your exam enrollment slip together with your official Score Report PDF within two days of the exam date, and your claim will be processed within seven days. The candidate name must match the payer name, and the guarantee does not apply if you take the exam within three days of purchase, if you downloaded the product but never took the exam, or to free materials and expired orders. If you would rather have fresh material than a refund, you can exchange your purchase for two additional exam products of equal value at no cost and keep the update service on your original product. Delivery itself is instant: your download is available right after payment and a copy is emailed to you within one minute — if nothing arrives within two hours, contact our support team. You may install the software on as many computers as you need.

The Oracle Database: Advanced PL/SQL exam is organized into 8 major domains. Some of the key domains include:

  • Large Objects (LOBs) Management, accounting for 12% of the exam
  • Profiling, Tracing and Debugging, accounting for 11% of the exam
  • PL/SQL Performance and Result Caching, accounting for 15% of the exam

Scroll up to the Exam Topics section for the complete breakdown, and use it to plan how much study time each domain deserves.

Oracle Database: Advanced PL/SQL Sample Questions:

Which is the correct method for releasing unused money after deleting elements of a collection?

  • A. Flush the shared pool using the ALTER SYSTEM command.
  • B. Execute DBMS_SESSION.FREE_UNUSED_USER_MEMORY.
  • C. Use the TRUNCATE method on the collection.
  • D. Execute DBMS_SHARED_POOL.UNKEEP.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

A products TABLE exists with a PROD_ID column.
Examine this PL/SQL block:

Which statement is true?

  • A. It executes successfully only if the FETCH statement is replaced by DBMS_SQL.RETURN_RESULT (v_ref_cur);
  • B. It executes successfully only if the FETCH statement is replaced by DBMS_SQL.FETCH_ROWS (v_cur);
  • C. It executes successfully only if v_ref_cur: = DBMS_SQL.TO_CURSOR_NUMBER (v_cur); is added before the FETCH statement.
  • D. It executes successfully.
  • E. It executes successfully only if v_ref_cur := DBMS_SQL.TO_REFCURSOR (V_CUR); is added before the FETCH statement.
Reveal Solution  Discussion  0

Correct Answer: A,C  🗳️

Examine this code:

The anonymous block fails this error stack:

Which two changes, when separately applied, would prevent these errors from occurring?

  • A. Define v2 as pkg. rec.
  • B. Define v1 as employees%ROWTYPE.
  • C. Initialize v1 and v2 with appropriate constructor functions.
  • D. Nothing because using the function TABLE (V1) is prohibited.
  • E. Define v2 as employees%ROWTYPE.
Reveal Solution  Discussion  0

Correct Answer: A,E  🗳️

The EMPLOYEES table exists in your schema and has columns LAST_NAME of data type VARCHAR2 and DEPARTMENT_ID of data type NUMBER.
There are six employees in DEPARTMENT_ID, 20. Examine this code:

What will be the outcome on execution?

  • A. The execution of this code will fail with an invalid cursor error and not display either output message.
  • B. The number of employees will be displayed as six for both output messages.
  • C. The number of employees will be displayed as six for the first output message and an invalid cursor error will be thrown instead of displaying the second output message.
  • D. The number of employees will be displayed as six for the first output message and zero for the second output message.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Examine these statements:

Which two corrections will allow this anonymous block to execute successfully?

  • A. Add wk#. EXTEND (1); before the 5th line.
  • B. Add i PLS_INTEGER; before the 3rd line.
  • C. Change line #2 to wk# tp_test# := tp_test# (tp_rec# ());
  • D. Replace lines 5 and 6 with wk# (i) := tp_rec# (i, i);
  • E. Add wk# .NEXT; before the 7th line.
Reveal Solution  Discussion  0

Correct Answer: A,D  🗳️

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