JD Tech

Jan 4, 2023 · Big Data

Implementing Data Cubes in Hive Using WITH CUBE, GROUPING SETS, and WITH ROLLUP

This article demonstrates how to build multi‑dimensional data cubes on JD's big‑data platform using Hive, comparing UNION ALL with the more concise WITH CUBE, GROUPING SETS, and WITH ROLLUP functions, and discusses practical pitfalls and optimization tips.