Dapper is a micro-ORM, used to provide easy and convenient data acccess functionality using TSQL. It does all the heavy lifting of parameterisation and object materialization, in a highly optimised way (the benchmarks illustrate that it is simply the fastest general purpose library for such).
It does *not* provide the full range of features you associate with an ORM (change-tracking and submitting changes to a database) - that is not it's intended role; it is, however, staggeringly fast - and very effective for read-heavy (rather than write-heavy) use-cases.
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