I am looking at marketplace insights for mongodb and cassandra ( two popular nosql datastores). Interestingly, they show different statistics which are NOT close. While mongo is showing 98th as far demand is concerned and cassandra shows 84. Few other observations 1. "Best rated" courses under Cassandra is not updated recently and updated around 2 years ago. 2. Very few courses under Cassandra. Does it reflect anything with repect to the popularity of the datastores ? Do we safely assume creating a course in Cassandra is worth more than creating a course in mongodb?
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