Oracle Fundamentals
Starting dates and places
Description
Prerequisites:
An understanding of databases and exposure to information technology in general would be usefulCourse Description:
This course is designed to give delegates practical experience in writing SQL statements and scripts using Oracle SQL. The basic SELECT statement, the use of SQL functions, SQL*Plus parameters and the basic table and view handling statements are introduced.
The course also provides practical experience in using Oracle's PL/SQL programming language to implement conditional execution, loop control, cursor handling and exception handling.
The delegate will practise:
- Using SQL*Plus and SQL Developer
- Creating SQL statements to query database tables
- Using standard aggregate…
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Prerequisites:
An understanding of databases and exposure to information technology in general would be usefulCourse Description:
This course is designed to give delegates practical experience in writing SQL statements and scripts using Oracle SQL. The basic SELECT statement, the use of SQL functions, SQL*Plus parameters and the basic table and view handling statements are introduced.
The course also provides practical experience in using Oracle's PL/SQL programming language to implement conditional execution, loop control, cursor handling and exception handling.
The delegate will practise:
- Using SQL*Plus and SQL Developer
- Creating SQL statements to query database tables
- Using standard aggregate functions and related SELECT statement clauses
- Implementing extended SQL functions
- Using SQL*Plus run time parameters
- Creating and altering tables and views
- Inserting, updating and deleting rows in database tables
- Retrieving information from the data dictionary
- Writing PL/SQL programs
- Declaring and using variables and constants
- Using the IF... THEN ... ELSE statement
- Implementing CASE expressions
- Implementing basic, WHILE and FOR loop constructs
- Handling implicit and explicit cursors
- Implementing the cursor FOR loop
- Handling system raised exceptions
- Defining and raising user defined exceptions
- Declaring and using record types and PL/SQL tables
This course includes the following modules:
Relational Database Concepts
- What is an Oracle Database
- Relational Database Structures
- Tables, Rows and Columns
- Indexes, Primary Keys and Foreign Keys
- Supported Datatypes
- The Data Dictionary
Using SQL*Plus
- What is SQL*Plus
- Getting Started
- Entering and Executing SQL Statements
- Editing SQL Statements
- Creating, Editing and Executing SQL Files
Using SQL Developer
- What is Oracle SQL Developer
- Starting SQL Developer
- Configure a Connection
- Navigation Tabs
- SQL Worksheet
Retrieving Data With The Select Statement
- The SELECT Statement
- The SELECT and FROM Clauses
- Conditions and the WHERE Clause
- Other Conditional Operators
- Logical Operators
- The ORDER BY Clause
- Column Aliases
- Arithmetic Expressions
- Precedence of Operators
Aggregate Functions
- Overview of Built In Aggregate Functions
- The GROUP BY Clause
- The HAVING Clause
Joining Tables
- Overview of Table Joins
- Inner Joins
- Table Aliases
- Outer Joins
- Self Joins
- ANSI Standard Joins
- Set Operators
Numeric, Character and Date Functions
- Function Types
- Using the Table dual to try out Functions
- Numeric Functions
- Character Functions
- String Concatenation
- Date Arithmetic and Date Functions
Conversion and Miscellaneous Functions
- Conversion Functions
- The NVL and NVL2 Functions
- The DECODE Function
- CASE Expressions
- The COALESCE and NULLIF Functions
SQL*Plus Parameters
- Command Line Substitution Parameters
- The Accept Command
- The Define and Undefine Commands
Using Subqueries
- Overview of Subqueries
- Use a Subquery as an Alternative to Join
- Handle Multiple Records in Subqueries
- Subquery in a Having Clause
- Anti-Join
- In-Line Views
- Top-N Queries
- Complex Subqueries
- Multi Column Subqueries
- Correlated Subqueries
- Subquery Rules
- Combining Unrelated Aggregates
- Using the ANY, ALL and SOME Operators
Managing Data
- Inserting Rows
- Updating Rows
- Deleting Rows
- Verifying Updates
- Transaction Control
- Commit and Rollback
- Savepoints
- Commits and Constraints
- Amending Data in SQL Developer
Managing Tables
- Creating Tables
- Specifying Constraints
- Altering Tables, Columns and Constraints
- Dropping Tables, Columns and Constraints
- Copying Tables
Managing Indexes and Views
- Creating Indexes
- Dropping Indexes
- Listing Indexes
- Creating and Using Views
- Dropping Views
- Listing Views
Managing Sequences and Synonyms
- Create a Sequence
- View Sequence Details
- Create a Synonym
- List Synonyms
PL/SQL Fundamentals
- What is PL/SQL?
- Basic Elements
- Variables and Constants
- Data Types
- Initialising Variables and Assigning Values
- Using SQL Statements in Code
- Generating Output to SQL or SQL Developer
Program Logic
- IF THEN ELSIF ELSE Statements
- CASE Statements
- The Basic Loop Construct
- WHILE and FOR Loops
- Nested and Labelled Loops
- The GOTO Statement
- The CONTINUE Statement
Using Cursors
- What is a Cursor?
- Implicit and Explicit Cursors
- Cursor Operations
- Declaring, Opening and Closing Cursors
- Fetching Rows
- Status Checking
- Using Cursors FOR UPDATE
- The Cursor FOR Loop
- Parameterised Cursors
Exceptions and Nested Blocks
- The EXCEPTION Section
- Types of Exception
- Handling Named System-Raised Exceptions
- Handling Un-named System-Raised Exceptions
- User-Declared Exceptions and Application Errors
- WHEN OTHERS THEN NULL
- Nested and Labelled Blocks
- Propagation of Exceptions
- Scope of Variables and Cursors
- Scope of Goto Statements
PL/SQL Records and Index-by Tables
- Declaring Record Types
- Handling PL/SQL Records
- Nested Records
- Declaring PL/SQL Index-By Tables or Associative Arrays
- PL/SQL Table Built-in Functions
- Manipulating PL/SQL Tables or Associative Arrays
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