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In the relational database world, SQL is the magic language that enables us to retrieve insightful information from data. Misinterpretation can easily happen if we don’t query data properly. For example, data inflation can occur when joining two tables in a one-to-many relationship. When a table has one record, while…

What is an anomaly? It’s something that deviates from what is standard, normal, or expected. In some cases, you can find anomalies by setting up thresholds or bounds. Or you can use supervised machine learning algorithms to find them. But it will require us to train the algorithm with a…

Ying Liu

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