A core capability of Power Query is to filter and combine, that is, to mash-up data from one or more of a rich collection of supported data sources. Any such data mashup is expressed using the Power Query M formula language. The M language is …

Mar 29, 2024 · The Power Query M function reference includes articles for each of the over 700 functions. These reference articles are auto-generated from in-product help. To learn more about functions and how they work in an expression, go to Understanding Power Query M functions.

Mar 29, 2024 · If the value produced by evaluating the if-condition is not a logical value, then an error with reason code "Expression.Error" is raised. The true-expression is only evaluated if …

Jul 21, 2023 · Any such data mashup is expressed using the Power Query formula language (informally known as "M"). Power Query embeds M documents in a wide range of Microsoft products, including Excel, Power BI, Analysis Services, and Dataverse, to enable repeatable mashup of data.

Mar 18, 2025 · Table.SelectColumns(table as table, columns as any, optional missingField as nullable number) as table Learn more about: Table.SelectColumns

Mar 18, 2025 · Table.CombineColumns(table as table, sourceColumns as list, combiner as function, column as text) as table

Feb 5, 2025 · You can manually create your own Power Query custom function using the Power Query M formula language, or the Power Query user interface offers you features to speed up, simplify, and enhance the process of creating and managing a custom function.

Mar 18, 2025 · Converts the numeric value number to a text value according to the format specified by format. The format is a text value indicating how the number should be converted. For more details on the supported format values, go to Standard numeric format strings and Custom numeric format strings. An optional culture may also be provided (for example, "en …

Sep 20, 2022 · These functions allow the construction and evaluation of M code.Learn more about: Expression functions

Mar 18, 2025 · List.Numbers(start as number, count as number, optional increment as nullable number) as list Learn more about: List.Numbers