What you'll Learn
- Introduction to Oracle PL/SQL Basics
- Getting familiar with executable statement
- Interact with Database objects
- Getting familiar with Cursors
- Basics of Procedures & Functions
- Start with Database Triggers
Oracle PL/SQL Basics
Oracle 12c PL/SQL fundamental course is intended for those who wish to learn advanced query concepts. This course starts with an introduction to PL/SQL and proceeds to list the benefits of this powerful programming language. It will enable creation of anonymous PL/SQL blocks as well as stored procedures, functions, cursors, and handling exceptions.
Duration : 20 Hrs
Oracle PL/SQL Basics Course Content
- Introduction to PL/SQL
- Explain the need for PL/SQL
- Explain the benefits of PL/SQL
- Identify the different types of PL/SQL blocks
- Output messages in PL/SQL
- Declaring PL/SQL Variables
- Recognize valid and invalid identifiers
- List the uses of variables, declare and initialize variables, use bind variables
- List and describe various data types using the %TYPE attribute
- Writing Executable Statements
- Identify lexical units in a PL/SQL block
- Use built-in SQL functions in PL/SQL and sequences in PL/SQL expressions
- Describe when implicit conversions take place and when explicit conversions have to be dealt with
- Write nested blocks and qualify variables with labels
- Write readable code with appropriate indentation
- Interacting with the Oracle Database Server
- Create PL/SQL executable blocks using DML and transaction control statements
- Make use of the INTO clause to hold the values returned by a SQL statement
- Writing Control Structures
- Identify the uses and types of control structures (IF, CASE statements and expressions)
- Construct and identify loop statements
- Apply guidelines when using conditional control structures
- Working with Composite Data Types
- Create user-defined PL/SQL records
- Create a record with the %ROWTYPE attribute
- Create an INDEX BY table and INDEX BY table of records
- Describe the differences among records, tables, and tables of records
- Using Explicit Cursors
- Distinguish between usage of implicit and explicit cursors, use SQL cursor attributes
- Declare and control explicit cursors, use simple loops and cursor FOR loops to fetch data
- Declare and use cursors with parameters
- Lock rows with the FOR UPDATE clause and reference the current row with the WHERE CURRENT OF clause
- Handling Exceptions
- Define PL/SQL exceptions
- Recognize unhandled exceptions
- Handle different types of exceptions (pre-defined exceptions, non-predefined exceptions and user-defined exceptions)
- Propagate exceptions in nested blocks and call applications
- Creating Stored Procedures and Functions
- Differentiate between anonymous blocks and subprograms
- Create a simple procedure and invoke it from an anonymous block
- Create a simple function
- Create a simple function that accepts a parameter
- Differentiate between procedures and functions
- Creating Procedures
- Differentiate between anonymous blocks and subprograms, use a modularized and layered subprogram design, and identify the benefits of subprograms
- Create a simple procedure and invoke it from an anonymous block
- Work with procedures
- Handle exceptions in procedures, remove a procedure, and display a procedure’s information
