Exam Name: Oracle Database: Advanced PL/SQL
Certification Provider: Oracle
Corresponding Certification: Oracle Database 12c
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Oracle 1z1-148 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle Database: Advanced PL/SQL |
| Exam Number: | 1Z0-148 |
| Real Exam Qty: | 75-85 |
| Exam Price: | USD 245 |
| Available Languages: | English (US) |
| Certificate Validity Period: | No expiration |
| Related Certifications: | Oracle Database SQL Certified Associate Oracle Database: Program with PL/SQL (1Z0-149) Oracle Database PL/SQL Developer Certified Professional |
| Exam Format: | Multiple Choice, Multiple Select |
| Exam Duration: | 120 minutes |
| Passing Score: | 62% |
| 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 1z1-148 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Advanced Interface and External Routines | 12% | - Calling Java from PL/SQL - Using database links and dynamic SQL - Calling external C procedures |
| Managing PL/SQL Code and Dependencies | 12% | - Conditional compilation - Managing dependencies and invalidations - Using PL/Scope and dictionary views - DBMS_METADATA package usage - Using PL/SQL compiler settings and warnings |
| Large Objects (LOBs) Management | 12% | - Using DBMS_LOB package - Temporary LOB operations - Internal vs External LOBs - SecureFile and BasicFile LOBs |
| PL/SQL Performance and Result Caching | 15% | - Function result caching - Intraunit inlining - DBMS_RESULT_CACHE configuration - Native vs interpreted compilation - DBMS_PARALLEL_EXECUTE |
| Profiling, Tracing and Debugging | 11% | - Profiling performance with DBMS_PROFILER - Analyzing execution statistics - Tracing execution with DBMS_TRACE |
| Working with Collections | 13% | - Associative arrays, nested tables, VARRAYs - Collection methods and best practices - Bulk operations and FORALL/BULK COLLECT |
| Security and Code Robustness | 13% | - Definer's vs Invoker's Rights - Fine-Grained Access Control (VPD) - Using DBMS_ASSERT - Preventing SQL injection |
| Error Handling and Dynamic SQL | 12% | - Advanced exception handling - Native Dynamic SQL - DBMS_SQL package usage |
Your 1z1-148 Questions, Answered Straight
All three versions carry the same 108 expert-written questions — you're choosing a study environment, not a content tier:
- PDF version — printable and instantly downloadable, built for reading anywhere and annotating by hand.
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Most candidates mix formats — PDF for reading, an engine for timed rehearsal.
Yes. ITPassLeader's free Oracle Database: Advanced PL/SQL PDF demo contains genuine sample questions with verified answers, so you can judge the quality firsthand. Every purchase includes 365 days of free updates, and renewing after expiry costs 50% of the regular price from your member zone. Inspect first — confident material has nothing to hide.
The 1z1-148 exam is Oracle's route to the Oracle Advanced PL/SQL Developer Certified Professional certification, a credential at the Professional level. Earning it tells the job market you can apply the Oracle Database: Advanced PL/SQL objectives to real work — the kind of proof that moves resumes to the top of the pile. It also connects to a wider certification family covering Oracle Database PL/SQL Developer Certified Professional, Oracle Database SQL Certified Associate, Oracle Database: Program with PL/SQL (1Z0-149), so the investment compounds. Wanting it is easy; structured practice is what closes the gap.
The blueprint above spans 8 domains — read the weightings as your study budget. A domain carrying 12% of the score deserves a matching share of your week, while lighter ones like Working with Collections can be maintained rather than marathoned. Work the full topic list above domain by domain, and let the percentages decide where your practice time goes first.
Work in passes rather than one grind. First pass: move through the 108 questions untimed, mapping weak domains against the blueprint above. Second pass: timed engine sessions, reviewing every error the same day while the reasoning is fresh. Final pass: re-test only your flagged questions until they stop being wrong. Book the exam when your timed scores hold steady, not when your calendar gets impatient.
The numbers in the overview table above become a plan once you divide them: total time over total questions equals your per-item budget, and any question burning double its budget should be flagged and revisited at the end. Rehearse that discipline against a live timer — every ITPassLeader engine session enforces one — until finishing with spare review time feels routine rather than lucky.
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Every retake bills the full fee again, so the passing score above is really a budgeting problem. The financially sound approach: drill with ITPassLeader practice questions until your timed scores clear the mark across several consecutive sessions, and only then register. Over-preparation costs hours; re-registration costs money.
Oracle Database: Advanced PL/SQL Sample Questions:
Examine this function body:
Which two headers will allow this function to compile successfully and take advantage of both invoker's rights and function result caching?
- A. CREATE FUNCTION get_hire_date (emp_id NUMBER) RETURN
VARCHAR2RESULT_CACHEAUTHID DEFINERISdate_hired DATE; - B. CREATE FUNCTION get_hire_date (emp_id NUMBER) RETURN VARCHAR2RESULT_CACHE RELIES_ON (departments)AUTHID CURRENT_USERISdate_hired DATE;
- C. CREATE FUNCTION get_hire_date (emp_id NUMBER) RETURN
VARCHAR2RESULT_CACHEAUTHID CURRENT_USERISdate_hired DATE; - D. CREATE FUNCTION get_hire_date (emp_id NUMBER) RETURN VARCHAR2RESULT_CACHE RELIES_ON (employees)AUTHID CURRENT_USERISdate_hired DATE;
- E. CREATE FUNCTION get_hire_date (emp_id NUMBER) RETURN VARCHAR2AUTHID
DEFINERISdate_hired DATE;
Correct Answer: C,D 🗳️
Examine this code (all compiled into schema HR):
Execute this code:
SET SERVEROUTPUT ON;
EXEC test_pkg.do_stuff
What is the correct output?
- A. LexDepth Dynamic Depth Name----------- ------------------- -------------------------------------------0 6
___anonymous_block1 5 package body HR.TEST_PKG2 4 package body HR.TEST_PKG2 3 package body HR.TEST_PKG2 2 package body HR.TEST_PKG0 1 procedure HR.
FORMAT_CALL_STACK_12C - B. LexDepth Dynamic Depth Name----------- ------------------- -------------------------------------------0 6
___anonymous_block1 5 TEST_PKG.DO_STUFF2 4 TEST_PKG.DO_STUFF.NP13 3
TEST_PKG.DO_STUFF.NP1.NP24 2 TEST_PKG.DO_STUFF.NP1.NP2.NP30 1
FORMAT_CALL_STACK_12C - C. LexDepth Dynamic Depth Name----------- ------------------- -------------------------------------------0 6
___anonymous_block1 5 package body HR.TEST_PKG2 4 package body HR.TEST_PKG3 3 package body HR.TEST_PKG4 2 package body HR.TEST_PKG0 1 procedure HR.
FORMAT_CALL_STACK_12C - D. LexDepth Dynamic Depth Name----------- ------------------- -------------------------------------------0 6
___anonymous_block1 5 DO_STUFF2 4 NP13 3 NP24 2 NP30 1 FORMAT_CALL_STACK_12C - E. LexDepth Dynamic Depth Name----------- ------------------- -------------------------------------------0 6
___anonymous_block1 5 TEST_PKG.DO_STUFF2 4 TEST_PKG.DO_STUFF.NP12 3
TEST_PKG.DO_STUFF.NP1.NP22 2 TEST_PKG.DO_STUFF.NP1.NP2.NP30 1
FORMAT_CALL_STACK_12C
Correct Answer: A 🗳️
Examine this function:
Execute the query:
SELECT remap_schema FROM dual;
Which is the correct output from the query?
- A. CREATE TABLE "EMP" ("EMPNO" NUMBER (4,0), "ENAME" VARCHAR2 (10), "JOB" VARCHAR2 (9), "MGR" NUMBER (4,0), "HIREDATE"DATE, "SAL" NUMBER (7,2) , "COMM" NUMBER (7,2), "DEPTNO" NUMBER (2,0),CONSTRAINT "PK_EMP" PRIMARY KEY ("EMPNO")USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255STORAGE (INITIAL
65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2417483645PCTINCREASE 0 FREELISTS
1 FREELIST GROUPS 1BUFFER_POOL DEFAULT FLASH_CHACHE DEFAULT
CELL_FLASH_CACHE DEFAULT)TABLESPACE "USERS" ENABLE,CONSTRAINT
"FK_DEPTNO" FOREIGN KEY ("DEPTNO")REFERENCES "DEPT" ("DEPTNO") ENABLE)
SEGMENT CREATION IMMEDIATEPCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS
255NOCOMPRESS LOGGINGSTORAGE (INITIAL 65536 NEXT 1048576 MINEXTENTS 1
MAXEXTENTS 2147483645PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS
1BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE
DEFAULT)TABLESPACE "USERS" - B. CREATE TABLE "EMP" ("EMPNO" NUMBER (4, 0), "ENAME" VARCHAR2 (10), "JOB" VARCHAR2 (9), "MGR" NUMBER (4, 0), "HIREDATE" DATE, "SAL" NUMBER (7, 2), "COMM" NUMBER (7, 2), "DEPTNO" NUMBER (2, 0),CONSTRAINT "PK_EMP" PRIMARY KEY ("EMPNO")USING INDEX ENABLE,CONSTRAINT "FK_DEPTNO" FOREIGN KEY ("DEPTNO")REFERENCES "DEPT" ("DEPTNO") ENABLE)
- C. CREATE TABLE "EMP" ("EMPNO" NUMBER (4,0), "ENAME" VARCHAR2 (10), "JOB" VARCHAR2 (9), "MGR" NUMBER (4,0), "HIREDATE"DATE, "SAL" NUMBER (7, 2) , "COMM" NUMBER (7, 2), "DEPTNO" NUMBER (2,0),CONSTRAINT "PK_EMP" PRIMARY KEY ("EMPNO")USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255STORAGE (INITIAL
65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2417483645PCTINCREASE 0 FREELISTS
1 FREELIST GROUPS 1BUFFER_POOL DEFAULT FLASH_CHACHE DEFAULT
CELL_FLASH_CACHE DEFAULT)TABLESPACE "SYSAUX" ENABLE,CONSTRAINT
"FK_DEPTNO" FOREIGN KEY ("DEPTNO")REFERENCES "DEPT" ("DEPTNO") ENABLE)
SEGMENT CREATION IMMEDIATEPCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS
255NOCOMPRESS LOGGINGSTORAGE (INITIAL 65536 NEXT 1048576 MINEXTENTS 1
MAXEXTENTS 2147483645PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS
1BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE
DEFAULT)TABLESPACE "SYSAUX" - D. CREATE TABLE "SCOTT". "EMP" ("EMPNO" NUMBER (4, 0), "ENAME" VARCHAR2 (10),
"JOB" VARCHAR2 (9), "MGR" NUMBER (4, 0), "HIREDATE" DATE, "SAL" NUMBER (7, 2),
"COMM" NUMBER (7, 2), "DEPTNO" NUMBER (2, 0),CONSTRAINT "PK_EMP" PRIMARY KEY ("EMPNO")USING INDEX ENABLE,CONSTRAINT "FK_DEPTNO" FOREIGN KEY ("DEPTNO")REFERENCES "DEPT" ("DEPTNO") ENABLE)
Correct Answer: B 🗳️
Examine this PL/SQL block:
If PLSQL_CCFLAGS is set to:
'flag1:TRUE, flag2:2, flag3:NULL'
What is the result of submitting this PL/SQL block for execution with SERVEROUTPUT enabled?
- A. It executes successfully and outputs "Line: 8".
- B. It executes successfully and outputs "Line: 5".
- C. It executes successfully and outputs "Line: 10".
- D. It fails compilation.
- E. It executes successfully and outputs "Line: ".
- F. It executes successfully and outputs "Line: 3".
Correct Answer: C 🗳️
Examine the incomplete code:
Which three lines of code must be added for it to successfully compile?
- A. src_cur= NUMBER;
- B. curid SYS_FEFCURSOR;
- C. src_cur SYS_REFCURSOR;
- D. curid := DBMS_SQL.TO_CURSOR_NUMBER (src_cur);
- E. curid NUMBER;
- F. src_cur := DBMS_SQL.TO_REFCURSOR (curid);
Correct Answer: C,E,F 🗳️
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