For analyzing complex data, we often wish to partition data into blocks and then
calculate subtotals for these blocks. For example, we may wish to analyze sales
data by geographical region, so we want to calculate values for New England, the
Midwest, the South, etc. Such analyses are faciliatated by ORACLE’s rollup
extension of group by.
For analyzing complex data, we often wish to partition data into blocks and then
calculate subtotals for these blocks. For example, we may wish to analyze sales
data by geographical region, so we want to calculate values for New England, the
Midwest, the South, etc. Such analyses are faciliatated by ORACLE’s rollup
extension of group by.
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