Viveka Solutions provides Oracle Application technical trainings. Oracle Alert allows users to specify exception conditions to monitor and receive notifications. It can send alerts through email and take actions like running scripts or programs based on user-defined responses. There are two types of alerts - event alerts that immediately notify users of database changes, and periodic alerts that check for conditions on a scheduled basis. Alerts can have detail, summary, or no exception actions depending on whether exceptions are found. Users can customize and use predefined alerts by enabling them and defining alert details like actions and frequencies.