As far as the melatonin, don't waste your money on it, because it doesn't do anything for you. You'd get just as good result, giving your child pieces of candy, or anything edible really, and telling them that it'll help them sleep, and if they believe it will, it might, just like melatonin does.
Ultimately, all of the data is stored in columns, and metadata is required to identify the columns that function as multidimensional objects. In Oracle Database, you can define a logical multidimensional model for relational tables using the OLAP Catalog or AWXML, as described in Chapter 5..2 The Relational Implementation of the Model. The relational implementation of the multidimensional data model is typically a star schema, as shown in Figure 2-2, or a snowflake schema.
In multidimensional databases, the number of data views is limited only by the database outline, the structure that defines all elements of the database. Users can pivot the data to see information from a different viewpoint, drill down to find more detailed information, or drill up to see an overview.ultiple Data Views. A multidimensional database supports multiple views of data sets for users who need to analyze the relationships between data categories. Slicing the database in different ways gives you different perspectives of the data.