在 DAX 中结合 SELECTCOLUMNS 和 ORDER BY

Question

这行得通，它选择了多个列：

evaluate SELECTCOLUMNS(branches,
         "The branch code", branches[code], 
           "The branch name", branches[name], 
           "The branch city", branches[city])

这也有效：

evaluate branches
    order by branches[name]
    start at "Co"

但是如果我想把两者结合起来，我会得到一个错误：

evaluate ( SELECTCOLUMNS ( branches,
    "The branch code", branches[code],
    "The branch name", branches[name],
    "The branch city", branches[city]) )
    order by branches[name]
    start at "Co"

A single value for column 'name' in table 'branches' cannot be determined. This can happen when a measure formula refers to a column that contains many values without specifying an aggregation such as min, max, count, or sum to get a single result.

错误说的是聚合，但我不需要聚合。问题是什么以及如何解决？

Answer 1

函数SELECTCOLUMNS returns a table，ORDER BY指的是这个新的table，而不是原来的table“分支”。由于 new table 不包含字段 [name]，您会收到错误消息。要修复它，只需参考新 table:

中的字段

EVALUATE
SELECTCOLUMNS (
    branches,
    "The branch code", branches[code],
    "The branch name", branches[name],
    "The branch city", branches[city]
)
ORDER BY [The branch name]
START AT "Co"

在 DAX 中结合 SELECTCOLUMNS 和 ORDER BY

Combine SELECTCOLUMNS and ORDER BY in DAX

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