Overview

Prepare to pass exam: 1Z0-149 Become an Oracle Database PL/SQL Developer Certified ProfessionalPreparing for the Oracle Advanced PL/SQL Developer Certified Professional exam (1Z0-149) requires a comprehensive understanding of various topics related to PL/SQL programming. This certification is designed to validate expertise in developing database-centric Internet applications for Oracle Database 10g, 11g, and 12c. In this guide, we'll delve into each exam topic to help you prepare effectively.Exam Topics:Declaring PL/SQL Variables: Understand identifiers, variable usage, and data types including %TYPE and %ROWTYPE attributes.Writing Executable Statements: Identify lexical units, use SQL functions and sequences, manage conversions, and write readable code.Writing SQL in PL/SQL: Create executable blocks with DML and transaction control, utilize INTO clause for result handling.Writing Control Structures: Use IF, CASE statements, construct loops, and manage control flow with EXIT and CONTINUE statements.Working with Composite Data Types: Create and initialize user-defined records, understand differences among records, collections, and INDEX BY tables.Using Explicit Cursors: Differentiate implicit and explicit cursors, control cursors, fetch data, handle parameters, and manage row locking.Handling Exceptions: Define and handle PL/SQL exceptions, recognize unhandled exceptions, and propagate them effectively.Using PL/SQL Subprograms: Differentiate blocks and subprograms, create and invoke procedures, and understand their benefits.Creating Procedures and Functions: Create and manage procedures and functions, work with parameters and exceptions.Creating Packages: Understand package benefits and components, work with package specification and body, overload subprograms, and use forward declarations.Working with Packages: Utilize package types, variables, constants, and functions, and restrict access to package subprograms.Using Dynamic SQL: Describe SQL statement execution flow, use Native Dynamic SQL (NDS), and bind PL/SQL types in SQL statements.Design Considerations for PL/SQL Code: Create constants, exceptions, and local subprograms, control privileges, and optimize code performance.Creating Triggers: Create triggers on DDL statements and system events, and understand their types and uses.Using the PL/SQL Compiler: Describe compiler features, use initialization parameters, and handle compile-time warnings.Managing PL/SQL Code: Use conditional compilation, grant roles, control code access, and manage deprecated code.Managing Dependencies: Track and manage procedural dependencies effectively.

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