Final answer:
Clickstream analysis is the database technology used to study and track customer behavior on a website, helping to gather insights about user interactions such as page visits, time spent, and shopping cart abandonment.
Step-by-step explanation:
The database technology that supports the study of customer behavior and how it relates to their purchases from an online store is clickstream analysis. This method records the paths that users take on a website, tracking actions like which pages are visited, how much time is spent on each page, and where and when shopping carts are abandoned. By using clickstream analysis, the marketing manager can gather insights into the customer journey and average transaction completion time, tailoring marketing strategies to enhance user experience and increase conversion rates.