It has been a couple of years since I last caught up with MarkLogic (click here for 2014 event blog post) and their brand of NoSQL database so given some of my colleagues recent work with NoSQL databases I thought I would have a catch up at their event in London this week.…
Data validation and cleansing is a methodical discipline. Start with a set of rules (or tests) to identify anomalies. For example, if a data item hasn’t changed (and is possibly stale); if it has changed beyond typical norms (and is possibly an error); or if two sources differ in their value for the same item (suggesting one may be wrong).…
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