| 摘要 |
A method of joining two or more sets of data in a database is provided wherein certain dimensions in the fact data are designated as being forced dimensions, and wherein for each forced dimension, a set of entries is created in the fact data each with the same key values in all of the dimensions other than the forced dimension, and each with a different member of the set of values existing in the fact data for that dimension, if and only if at least one entry exists in the fact data with the same set of key values in the dimensions other than the forced dimension. |
