... Query Language (SQL) to create and alter database objects, add data to and delete data from the database, modify data that has been added to that database, and of course, retrieve data stored ... Skills & Concepts Understand Relational Databases● Learn About SQL● Use a Relational Database Management SystemIn 2006, the International Organization for Standardization (ISO) and the American ... chapter.Understand Relational DatabasesStructured Query Language (SQL) supports the creation and maintenance of the relational database and the management of data within that database. However,...