Module Link: http://drupal.org/project/schema The schema module helps module developers work with database tables.
Who: Technical Users (module developers) When: I only use this when creating new modules. I'm lazy and use it to generate my schema for .install files. Where: You can find all of the schema options/reports in the site building section of the admin back end. Why: It gives you insights to how your tables are setup in relation to each other and it helps lazy module authors like me :)
