Use of axes in MDX

The SQL ANALYSIS2000 supports a maximum of 0-128 total 129 axes.
1:select 0 axes, it shows all the aggregation of the quantity.
Select
From Sales
Indeed, the quantity is [Measures]. Aggregation of all axes of the [unit Sales].
2:1 results with the following one axis query results
Select
{[Measures]. [Unit Sales]} On columns
From Sales
3: The results of the following two axes query results from the previous 1 and 2
Select
{[Measures]. [Unit Sales]} On columns,
{[Customers]. [All Customers]} On Rows
From Sales
4: The name of the axis
Axis (0), axis (1) ... Axis (N)
Must be arranged from small to large, cannot be omitted, such as axis (0), axis (1), Axis (3) is illegal;

Axis (0), axis (1), Axis (2), Axis (3), Axis (4) can be represented separately by columns,rows,pages,chapters and sections.
And both can be mixed use!
For example, axis (0), rows, pages, Axis (3) are legal.