问题
I have two tables in power query.
Price table
Date Company Price
01/01/2000 A 10
01/02/2000 A 12
01/03/2000 A 15
01/01/2000 B 15
01/02/2000 B 85
01/03/2000 B 98
Size table
Date Company Size
01/06/2000 A 10
01/06/2001 A 12
01/06/2002 A 15
01/06/2000 B 15
01/06/2001 B 85
01/06/2002 B 98
In Price table, I want only to have companies which are in size table. In other words, If company C is not in the size table, I do not need that company data points in the price table. Here no need to consider the date.
回答1:
In Power Query you can use the Merge Queries function to achieve that. (In the Home --> Combine section of the ribbon.
Select the Join Kind to determine which rows to keep.
In your example, create a query from the 2nd table and apply the following steps:
- Remove the date and the size column
- Remove duplicates
Afterwards you can join the first table with the newly created query and do a inner join. (Only keep matching entries)
来源：https://stackoverflow.com/questions/38500927/how-to-filter-rows-in-a-table-based-on-values-in-another-table-in-power-query