Final answer:
Vital information is missing in the question provided; the relationship between angles ZAE, A, and DB is not specified, which is necessary to determine the measure of angle DB in a geometry problem.
Step-by-step explanation:
The question provided seems to be missing vital information regarding the relationship between angles ZAE, A, and DB which are necessary to determine the measure of angle DB. Without knowing how these angles are related, for instance, if they are part of the same triangle, supplementary angles, or have some other geometrical relationship, we cannot accurately calculate or determine the measure of angle DB.
Normally, in questions like these, there is typically a geometric figure accompanying the question that outlines the relationship between the different angles or a description of the figure inside of the question. As this crucial piece of information is not provided, we can't proceed with finding the value of angle DB.