OLE DB Programmer's Reference | |
<value_expression> ::= <numeric_value_expression> | <string_value_expression>
Statements in MDX operate on the following basic entities:
- Set. A collection of tuple elements.
- Member. A member of a dimension.
- Tuple. A collection of members from different dimensions.
- Numeric. Can be an exact numeric, such as integer or decimal, or an approximate numeric, such as float or double.
- Time dimension. Time series functions operate on the dimension that is specified implicitly as part of their <set>, <member>, or <level> arguments.
MDX statements can perform a variety of other functions, such as the following:
- Expressing user-interface operations
- Searched case expressions
- Conditional expressions (described in Chapter 25: Multidimensional Expressions)
- Dimension write-back (covered in detail in Chapter 25: Multidimensional Expressions)
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