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Applies to: 
SQL Server Analysis Services
The Data Mining Extensions (DMX) reference documentation in Microsoft SQL Server Analysis Services uses the following conventions to describe the DMX language.
| Convention | Usage |
|---|---|
| bold | DMX keywords and text that must be typed exactly as shown. |
| italic | User-supplied arguments of DMX syntax. |
| | (vertical bar) | Used to separate syntax items within brackets or braces. You can choose only one of the items. |
[ ] (brackets) |
Contain optional syntax items. Do not type the brackets. |
| { } (braces) | Contain required syntax items. Do not type the braces. |
| , ... | Indicates that the item before the comma can be repeated any number of times. The items are separated by commas. |
| <label> ::= | The name for a block of syntax. This convention is used to group and label sections of lengthy syntax or a unit of syntax that can be used in more than one location within a statement. Each location in which the block of syntax can be used is indicated with the label enclosed in chevrons, such as <label>. |