This course replaces Informix Database Administration: Managing and Optimizing Data - ILO (3X221). This is the Instructor-Led Online version of Classroom course (IX222) This is an online course. Please do not make travel arrangements for this course. After you receive confirmation that you are enrolled, you will be sent further instructions. In this course, you will learn the basic concepts of data management within Informix. They will learn how to determine correct data types; how to create, manage, and maintain tables and indexes; how the Informix optimizer works; how to manage data; and how to use the SET EXPLAIN feature to determine query effectiveness.