SQL Fundamentals

SQL Intro

The course SQL Fundamentals starts with a treatment of the SQL Standard. The structure of relational databases with tables and their relationships is covered. SQL can be used in many database systems such as Oracle, MySQL, Microsoft Access, Microsoft SQL Server, DB2, Informix, PostgreSQL and more. Almost every DBMS has also added its own extra functions to standard SQL.

Select Queries

Next attention is paid to practical skills to write SELECT queries. This also includes clauses such as WHERE, ORDER BY, GROUP BY, HAVING, LIKE and BETWEEN .. AND.

Data Types

Then it is time for the different data types used in the SQL language such as numeric, binary and string types. The data types related to dates and time are treated. And the SQL CREATE TABLE statement with which tables are created is discussed as well.

Functions

Part of the program of the course is also the treatment of various functions that are part of the SQL Standard. Among others mathematical, conversion and aggregation functions for calculating sum and average are covered.

Data Manipulation

Adding and adjusting data by means of INSERT and UPDATE statements is discussed next. And transactions that either become final with commit or are rolled back with rollback are treated.

Joins

Finally attention is paid to what foreign key relationships between tables are and how JOIN queries can be used to retrieve data from related tables.

Audience Course SQL Fundamentals

The course SQL Fundamentals is aimed at a wide audience of system administrators, end users of Office applications and novice programmers who want to access relational databases efficiently by using queries in Structured Query Language (SQL).

Prerequisites Course SQL Fundamentals

To be able to participate in the course SQL Fundamentals some familiarity with database systems is beneficial for the understanding.

Realization Training SQL Fundamentals

The theory is treated on the basis of presentations. Demos are used to clarify the theory. There is ample opportunity to practice. The course times are from 9.30 to 16.30.

Certification course SQL Fundamentals

Participants receive an official certificate SQL Fundamentals after successful completion of the course.

Modules

Module 1 : SQL Intro

• What is SQL?
• History of SQL
• SQL Standard
• SQL Parts
• Environment
• Relational Databases
• Normalisation
• Data Types
• Database Creation
• DDL Create Table
• Data Types
• Language Elements
• DML Insert Into
• SQL Errors
• Select Query

Module 2 : Select Queries

• Query Structure
• SELECT .. FROM
• Options SELECT .. FROM
• SELECT DISTINCT
• WHERE Clause
• Comparison Operators
• Logical AND and OR
• Aggregate Functions
• LIKE Condition
• BETWEEN .. AND Condition
• IN Condition
• IS NULL Condition
• ORDER BY Clause
• GROUP BY Clause
• HAVING Clause

Module 3 : SQL Data Definition

• CREATE Statements
• Schema and Table Creation
• Data Types
• Numeric Types
• Binary Data Types
• String Data Types
• Temporal Data Types
• Integrity Constraints
• Keys
• Not Null
• Foreign Keys
• Update and Delete
• Check Constraint
• ALTER Table
• DROP Table

Module 4 : Functions

• Standard Functions
• Mathematical Functions
• String Functions
• Conversion Functions
• Single Row Functions
• Case Manipulation Functions
• Character Manipulation Characters
• Numeric Functions
• Date Functions
• General Functions
• Multiple Row Functions
• Aggregate Functions
• Formatting Numbers

Module 5 : Data Manipulation

• Insert Statement
• Update Statement
• Updating Table Rows
• Deleting Table Rows
• Deleting and Foreign Keys
• Transactions
• Commit and Rollback
• Implicit rollbacks
• Implicit commits
• Explicit rollbacks
• Explicit commits
• Savepoints
• Subqueries

Module 6 : Joins

• What are Joins?
• ANSI Join Syntax
• Cross Join
• Inner Join
• Table Aliases
• Natural Join
• Left Join
• Right Join
• Full Join
• Full Outer Join
• Left Excluding Join
• Right Excluding Join
• Outer Excluding Join