The answer to what is columnar database is quite simple: it's a database which stores and queries data in columns as opposed to rows. This is especially useful for analytical workloads, as queries typically filter on specific fields in a large number of records, such as millions or billions. If only certain columns are used in a query, processing the rest may be unnecessary resulting in faster query response time. Column-oriented systems are typically employed where the primary use is a dashboard, reporting, data warehouse and big data analysis. Datalance can assist in planning an environment by evaluating the architecture, according to workload needs and anticipated data growth.
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