允许和拒绝的成员组必须是MDX表达式，表达式的计算结果为该维度的成员组。
The sets of allowed and denied members must be MDX expressions that evaluate to sets of members of the dimension.
在这两种情况下，考虑在伪事实表的连接表达式中添加额外的逻辑，这会缩小从维度表返回的连接键值的范围。
In either case, consider adding additional logic in the join expressions to the fake fact table that will reduce the range of join key values that can be returned from the dimension tables.
由于伪事实的每个维度中的连接表达式的过滤，笛卡尔连接结果缩小了。
The Cartesian join is reduced by the filters found in the join expressions from each dimension to the fake fact.
AdaptiveWarehouse目标模型自动嵌入一个提示表达式到查询中，该查询为历史跟踪维度属性评估时间上下文。
The Adaptive Warehouse target model automatically embeds a prompt expression in queries which evaluate the time context for history tracking dimension attributes.
如果没有为allowedMembers指定表达式，那么将认为该维度的所有成员都可以被分配了策略的角色访问。
If you do not specify an expression for Allowed members, all members of the dimension are considered to be accessible by a role that is assigned the policy.
例如，在时间维度和伪事实的关系表达式中，可以使用过滤来将时间维度缩小到几天之内。
For example, in the relationship expression between the time dimension and the fake fact, a filter can be applied to reduce the records from the time dimension to just a few days.
返回这样的维度，该维度在多维数据集中的以零为基的位置是由数值表达式指定的。
Returns the dimension whose zero-based position within the cube is specified by a numeric expression.
系统支持MDX（多维表达式）查询，对多个维度的数据的访问更为简单和直观。
The System is supporting MDX search, which make operation on multi-dimension data easier and more direct.
系统支持MDX（多维表达式）查询，对多个维度的数据的访问更为简单和直观。
The System is supporting MDX search, which make operation on multi-dimension data easier and more direct.
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