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Exam Information
Official specifications published by Oracle
Exam Format
110 min
60-70
66%
Professional
Registration
$245 USD
Pearson VUE
Validity
Lifetime (no recertification required for retired exam)
1Z0-148 Exam Topics and Domains
1Z0-148 is organized into 8 weighted domains. Expect to work with DBMS_ASSERT, DBMS_LOB, Data Dictionary Views, DBMS_OUTPUT, and more.
1
PL/SQL Result Caching
10%
Result Cache Implementation
Function Result CachingCache Memory Management
- Set up PL/SQL functions to use result caching
- Identify when result cache is bypassed
- Handle session dependencies in cached results
- Determine appropriate functions for result caching
2
SQL Injection Protection
15%
Safeguarding Against SQL Injection
SQL Injection Mitigation Techniques
- Identify SQL injection attack vectors
- Implement bind variables correctly
- Use DBMS_ASSERT for input validation
- Write secure dynamic SQL
3
Performance Optimization
15%
Intraunit Inlining
Enabling and Using Inlining
- Enable intraunit inlining
- Understand compiler optimization levels
- Use INLINE pragma effectively
Bulk Processing
BULK COLLECT and FORALL
- Implement bulk binding operations
- Use FORALL for DML operations
- Optimize cursor processing with BULK COLLECT
4
Advanced Data Structures
15%
Collections
Associative Arrays and Nested Tables
- Create and manage associative arrays
- Use nested tables and VARRAYs
- Apply collection methods
- Choose appropriate collection types
LOB Data Types
Working with Large Objects
- Create and maintain LOB data types
- Use DBMS_LOB package for LOB operations
- Manage LOB storage effectively
5
Cursor Design and Management
12%
Advanced Cursor Techniques
Cursor Design Guidelines
- Identify guidelines for cursor design
- Use cursor variables effectively
- Implement parameterized cursors
- Apply cursor FOR UPDATE appropriately
6
External Programming Integration
13%
Java Integration
Executing Java from PL/SQL
- Execute Java programs from PL/SQL
- Create Java call specifications
- Map data types between Java and PL/SQL
External C Procedures
C Function Integration
- Publish C functions from PL/SQL
- Declare external procedures correctly
- Map PL/SQL and C data types
7
Advanced Interface Methods
10%
Dynamic SQL and Native Dynamic SQL
Using Native Dynamic SQL
- Use advanced interface methods
- Implement Native Dynamic SQL
- Handle dynamic PL/SQL execution
8
Supplied Packages and Dictionary Views
10%
Using Oracle Supplied Packages
Dictionary Views for Code InformationCommon Supplied Packages
- Use supplied packages effectively
- Query dictionary views for coding information
- Leverage built-in Oracle functionality
How do I earn this certification?
Passing 1Z0-148 earns the Oracle Database PL/SQL Developer Certified Professional certification. It sits in the Database Development track.
Current Level Exams
Next Level Options
No direct advanced certification path Advanced database certifications moved to cloud-focused tracks
Alternative Paths
- 1Z0-149 - Oracle Database Program with PL/SQLCurrent replacement exam for PL/SQL certification
- 1Z0-071 - Oracle Database SQLComplementary SQL skills for database developers
- 1Z0-082 - Oracle Database Administration IFor those wanting to expand into DBA role
Practice with Precision
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How to study for this exam?
The most effective way to prepare for 1Z0-148 is by using the PlanetCert Simulator to practice questions and review detailed explanations.
What's changed on this exam?
Current Status
RETIRED
Updates
- Oracle Database 12c 12.1/12.2 1Z0-148 was specific to 12c advanced features • Release date: 2013-2017
- Oracle Database 19c 19c 19c is the long-term support release that influenced retirement of 12c certifications • Release date: 2019
- Oracle Cloud Infrastructure Current Shift to cloud-focused certifications reduced emphasis on on-premises advanced features • Release date: Ongoing
Who should take this exam?
- Oracle Database SQL knowledge
- PL/SQL fundamentals
- Experience with Oracle Database 11g or 12c
- Completion of Oracle Database 12c: Program with PL/SQL training