Oracle DB 11g - SQL & PL/SQL Fundamentals

Audience:

Application Developers Forms Developer Functional Implementer PL/SQL Developer Portal Developer Reports Developer Technical Consultant

Prerequisites:

Oracle DB 11g: Intro to SQL

Description

This course is designed to deliver the fundamentals of SQL and PL/SQL along with the benefits of the programming languages using Oracle Database technology. In this course participants learn the concepts of relational databases. Additionally the participants are provided with the essential SQL skills that allow them to write queries against single and multiple tables, manipulate data in tables, and create database objects. The usage of single row functions to customize output, how to invoke conversion functions and conditional expressions are covered. The use of group functions to report aggregated data is also included. Additionally students learn to create PL/SQL blocks of application code that can be shared by multiple forms, reports, and data management applications. Participants also learn to create anonymous PL/SQL blocks, stored procedures and functions. Participants get to learn about declaring identifiers and trapping exceptions. Demonstrations and hands-on practice reinforce the fundamental concepts.

I. Introduction

• Overview of Oracle Database 11g and related products
• Overview of relational database management concepts and terminologies
• Introduction to SQL and its development environments
• The HR schema and the tables used in this course
• Oracle Database documentation and additional resources

II. Retrieve Data Using the SQL SELECT Statement

• List the capabilities of SQL SELECT statements.
• Generate a report of data from the output of a basic SELECT statement
• Use arithmetic expressions and NULL values in the SELECT statement
• Invoke Column aliases
• Concatenation operator, literal character strings, alternative quote operator, and the DISTINCT keyword
• Display the table structure using the DESCRIBE command

III. Restricted and Sorted Data

• Write queries with a WHERE clause to limit the output retrieved
• Describe the comparison operators and logical operators
• Describe the rules of precedence for comparison and logical operators
• Usage of character string literals in the WHERE clause
• Write queries with an ORDER BY clause
• Sort output in descending and ascending order
• Substitution Variables

IV. Usage of Single-Row Functions to Customize Output

• List the differences between single row and multiple row functions
• Manipulate strings using character functions
• Manipulate numbers with the ROUND, TRUNC and MOD functions
• Perform arithmetic with date data
• Manipulate dates with the date functions

V. Conversion Functions and Conditional Expressions

• Describe implicit and explicit data type conversion
• Describe the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
• Nesting multiple functions
• Apply the NVL, NULLIF, and COALESCE functions to data
• Usage of conditional IF THEN ELSE logic in a SELECT statement

VI. Aggregated Data Using the Group Functions

• Usage of the aggregation functions in SELECT statements to produce meaningful reports
• Describe the AVG, SUM, MIN, and MAX function
• How to handle Null Values in a group function?
• Divide the data in groups by using the GROUP BY clause
• Exclude groups of date by using the HAVING clause

VII. Display Data from Multiple Tables

• Write SELECT statements to access data from more than one table
• Join Tables Using SQL: 1999 Syntax
• View data that does not meet a join condition by using outer joins
• Join a table by using a self-join.
• Create Cross Joins

VIII. Usage of Subqueries to Solve Queries

• Use a Subquery to Solve a Problem
• Single-Row Subqueries
• Group Functions in a Subquery
• Multiple-Row Subqueries
• Use the ANY and ALL Operator in Multiple-Row Subqueries
• Use the EXISTS Operator

IX. SET Operators

• Describe the SET operators
• Use a SET operator to combine multiple queries into a single query
• Describe the UNION, UNION ALL, INTERSECT, and MINUS Operators
• Use the ORDER BY Clause in Set Operations

X. Data Manipulation

• Add New Rows to a Table
• Change Data in a Table
• Use DELETE and TRUNCATE Statements
• How to save and discard changes with the COMMIT and ROLLBACK statements?
• Implement Read Consistency
• Describe the FOR UPDATE Clause

XI. DDL Statements to Create and Manage Tables

• Categorize Database Objects
• Create Tables
• Describe the data types
• Understand Constraints
• Create a table using a subquery
• How to alter a table?
• How to drop a table?

XII. Other Schema Objects

• Create, modify, and retrieve data from a view
• Perform Data manipulation language (DML) operations on a view
• How to drop a view?
• Create, use, and modify a sequence
• Create and drop indexes
• Create and drop synonyms

XIII. Introduction to PL/SQL

• PL/SQL Overview
• List the benefits of PL/SQL Subprograms
• Overview of the Types of PL/SQL blocks
• Create a Simple Anonymous Block
• Generate the Output from a PL/SQL Block

XIV. PL/SQL Identifiers

• List the different Types of Identifiers in a PL/SQL subprogram
• Usage of the Declarative Section to Define Identifiers
• Use of variables to store data
• Scalar Data Types
• %TYPE Attribute
• Bind Variables
• Sequences in PL/SQL Expressions

XV. Write Executable Statements

• Basic PL/SQL Block Syntax Guidelines
• How to comment code?
• SQL Functions in PL/SQL
• Data Type Conversion
• Nested Blocks
• Operators in PL/SQL

XVI. Interaction with the Oracle Server

• SELECT Statements in PL/SQL to retrieve data
• Data Manipulation in the Server Using PL/SQL
• The SQL Cursor concept
• Learn to use SQL Cursor Attributes to Obtain Feedback on DML
• How to save and discard transactions?

XVII. Control Structures

• Conditional processing Using IF Statements
• Conditional processing Using CASE Statements
• Simple Loop Statement
• While Loop Statement
• For Loop Statement
• The Continue Statement

XVIII. Usage of Composite Data Types

• PL/SQL Records
• The %ROWTYPE Attribute
• Insert and Update with PL/SQL Records
• Associative Arrays (INDEX BY Tables)
• INDEX BY Table Methods
• INDEX BY Table of Records

XIX. Explicit Cursors

• Understand Explicit Cursors
• Declare the Cursor
• How to open the Cursor?
• Fetching data from the Cursor
• How to close the Cursor?
• Cursor FOR loop
• Explicit Cursor Attributes
• FOR UPDATE Clause and WHERE CURRENT Clause

XX. Exception Handling

• What are exceptions?
• Handle Exceptions with PL/SQL
• Trap Predefined Oracle Server Errors
• Trap Non-Predefined Oracle Server Errors
• Trap User-Defined Exceptions
• Propagate Exceptions
• RAISE_APPLICATION_ERROR Procedure

XXI. Stored Procedures and Functions

• What are Stored Procedures and Functions?
• Differentiate between anonymous blocks and subprograms
• Create a Simple Procedure
• Create a Simple Procedure with IN parameter
• Create a Simple Function
• Execute a Simple Procedure
• Execute a Simple Function