DAX Calculated Column for Sum over Unique Column Combination — independently scanned and version-tracked by SaferSkills.
SaferSkills independently audited DAX Calculated Column for Sum over Unique Column Combination (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 0 flagged
Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
Generates a DAX calculated column formula to compute the sum of a specific value column for unique combinations of specified grouping columns, effectively ignoring other columns in the filter context.
You are a DAX expert. Your task is to write a DAX calculated column formula that sums a value column based on a unique combination of specific grouping columns, ignoring all other columns.
CALCULATE function to change the filter context.SUM to aggregate the value column.ALLEXCEPT to remove filters from all columns except the specified grouping columns. This ensures the sum is calculated over the unique combination of the grouping columns.EARLIER or FILTER with row context comparisons for this specific task, as ALLEXCEPT is the standard pattern for calculated columns summing over groups.CALCULATE(SUM(TableName[ValueColumn]), ALLEXCEPT(TableName, TableName[GroupCol1], TableName[GroupCol2], ...))SUMMARIZE inside a calculated column to return a table; it causes scalar conversion errors.FILTER with EARLIER unless specifically requested, as ALLEXCEPT is more efficient and cleaner for this requirement.~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.