PowerQuery的这个小功能,让你轻松发现数据质量问题 采悟发表于Power... PowerQuery常用的数据清洗 1.提升标题 2.更改数据类型 3.删除错误/空值 4.删除重复项 5.填充 6.合并列 7.拆分列 8.分组 9.提取 10.行列转置 将标题作为第一行后,再转置。 11.行列操作 12.逆透视列 将二维表降成一维… 润山发表于...
7. 合并查询(Merge Queries) 位置:主页 > 合并查询 用途:类似SQL的JOIN或Excel的Vlookup,关联多个表。 场景:将订单表与客户表关联,补充客户姓名和地址。 注意事项:选择正确的连接类型(左连接、内连接等),确保关联字段一致。 详细介绍请参考:PowerQuery合并查询 | 超越VLOOKUP,让整合数据更简单高效 8. 分组依据(Gr...
Power BI Conditional Merge 05-03-2020 05:57 AM Hi all, I need to join 2 tables based on a column that is not always the same in both tables The problem: Table 1 (Book100): Table 2 (BookSummary): Now I want to join these tables based on the column named 'Booktype', bu...
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The Power Query M formula language includes a set of operators that can be used in an expression. Operators are applied to operands to form symbolic expressions. For example, in the expression 1 + 2 the numbers 1 and 2 are operands and the operator is the addition operator (+)....
The last two properties give the conditional logical operators their "conditional" qualification; properties also referred to as "short-circuiting". These properties are useful to write compact guarded predicates. For example, the following expressions are equivalent:Power Query M Copy ...
ifList.Contains( {"Act","Actual"}, [Status] ) then"Act"else"OTHER STATUS" ref:https://gorilla.bi/power-query/if-function-in-power-query/#:~:text=IF%20Statements%20in%20Power%20Query%20%28Incl%20Nested%20IF%29,write%20conditional%20if%20statements%20in%20Power%20BI.%20...
- add column with conditional result and remove other but Index and Result columns Now merge first table with above one on Index into new query, expand Result. If you add more columns the only you need is to change columns selected at the beginning of second query. ...
前面几篇博客介绍了 Power Query (简称 PQ) 的数据源和 M 语言的基础知识，现在开始进入数据处理部分...
Creating custom functions in M Query language to merge columns with specific rules Using conditional logic statements with concatenation formulas to handle complex data scenarios Best Practices for Using Concatenate Function in Power BI Here are some best practices to observe when using the concatenate ...