unpivot

English

Etymology

From un- +‎ pivot.

Verb

unpivot (third-person singular simple present unpivots, present participle unpivoting, simple past and past participle unpivoted)

  1. (transitive, computing, databases) To convert columns into rows, so as to undo a pivot operation.
    • 2005, Rick Dobson, Beginning SQL Server 2005 Express Database Applications, page 243:
      Unpivoting a cross tab reconstructs a table in a relational format from a cross-tab data source.
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