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Oracle 1Z0-148 is a new certification exam regarding Oracle Database. It is intended for the application developers and database administrators who have fundamental knowledge of PL/SQL and SQL.
The exam is known as Oracle DB: Advanced PL/SQL and is meant to validate that the database administrators and application developers know how to use the complex features of PL/SQL in designing and adjust PL/SQL to interface databases among applications. The 1Z0-148 test is an Oracle certification exam that an individual must pass to earn the Oracle DB PL/SQL Developer Certified Professional credential.
Before the release of the 1Z0-148 exam on June, 2018, the candidates took the old version of the test. The new Oracle 1Z0-148 test is an improved version. One of its main purposes is to support a more streamlined modern exam release cycle. The exam is not limited with any particular version or edition of Oracle Database. It supports both Oracle Database 11g and Oracle Database 12c. There are 75 questions in the test. The exam time is 110 minutes. To pass the exam, one needs to score 62%.
Oracle 1z0-148 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Large Objects (LOBs) Management | 12% | - Internal vs External LOBs - SecureFile and BasicFile LOBs - Using DBMS_LOB package - Temporary LOB operations |
| Profiling, Tracing and Debugging | 11% | - Tracing execution with DBMS_TRACE - Analyzing execution statistics - Profiling performance with DBMS_PROFILER |
| Error Handling and Dynamic SQL | 12% | - Native Dynamic SQL - DBMS_SQL package usage - Advanced exception handling |
| Managing PL/SQL Code and Dependencies | 12% | - Conditional compilation - Using PL/SQL compiler settings and warnings - Managing dependencies and invalidations - Using PL/Scope and dictionary views - DBMS_METADATA package usage |
| Security and Code Robustness | 13% | - Using DBMS_ASSERT - Fine-Grained Access Control (VPD) - Preventing SQL injection - Definer's vs Invoker's Rights |
| Working with Collections | 13% | - Collection methods and best practices - Associative arrays, nested tables, VARRAYs - Bulk operations and FORALL/BULK COLLECT |
| Advanced Interface and External Routines | 12% | - Calling Java from PL/SQL - Using database links and dynamic SQL - Calling external C procedures |
| PL/SQL Performance and Result Caching | 15% | - DBMS_PARALLEL_EXECUTE - Native vs interpreted compilation - Intraunit inlining - DBMS_RESULT_CACHE configuration - Function result caching |
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