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Using Informix-SQL

A two day course for application developers and end users who have a working knowledge of Informix-SQL. Practical exercises are a significant feature of this course and are used throughout to consolidate the theory.

Course Objectives

On completion of this course the delegate will be able to

  • Understand relational database terminology
  • Understand the structure of Informix database tables
  • Query and maintain data
  • Develop queries based on one or more tables in a database


There are no prerequisites for this course

Course Content

  • Basic concepts of relational database design
  • Entities, attributes, Primary and Foreign Keys
  • Connecting to a database
  • Understanding the structure of database tables
  • Informix data types, indexes and NULL values
  • Constructing Informix SQL statements
  • Running, modifying and saving SQL scripts
  • Re-directing the output of queries
  • Building a simple query
  • Using aggregate functions AVG, MAX, MIN, SUM, COUNT
  • Building expressions into the select list
  • Using display labels
  • Applying filter conditions using the WHERE clause
  • Using the ORDER BY clause to sort the output of data
  • Understanding the GROUP BY clause
  • Selecting data into a temporary table
  • Selecting data from more than one table in the database
  • Simple and outer table joins
  • Inserting, updating, and deleting data
  • In-built functions: USER, TODAY, and CURRENT
  • Date manipulation functions
  • Introduction to transaction logging
  • Using the BEGIN/COMMIT/ROLLBACK WORK statements
  • Unloading data and loading data using ascii files

Quotes from previous delegates

A splendid course, well presented and well explained. The tutors extensive knowledge of I-SQL and ability to communicate it added high quality and were much appreciated, many thanks.....

Very impressed with the whole course, the facilities, food and training. The documentation is probably the best I have ever seen on any training course I have attended, congratulations....

If you would prefer a personalised course then please contact us to discuss your requirements. Oninit ® will then provide a proposal to ensure that your staff receive the training they need to optimise their performance and your system

To discuss how Oninit ® can assist please call on +1-913-674-0360 or alternatively just send an email specifying your requirements.