Drill, drill down, slice on database

Source: Internet
Author: User

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Drill up: Returns from the current data upward to the previous layer of data. For example: (the classification of a data is divided into the product name) from the list of names collapsed to the category list.
Drill down: Expands the next layer of data from the current data. For example: (the classification of a data is divided into the name) from the list of categories to Product list.
Drilling and drill down are collectively referred to as drills.
Slicing: presenting data at the same level. such as the above products.
Rotating shaft:
These should belong to the query, presentation category

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