问题
I'm using web api to import data into powerbi. After every refresh, old data is replaced by new data of web api so my question is how can I store that old data in power bi ?
回答1:
Power BI will not store data, unless you have a query source that will support incremental refresh.
https://docs.microsoft.com/en-us/power-bi/admin/service-premium-incremental-refresh
It would be best to use a tool like Azure Function, Azure Logic Apps or Power Automate to get the data and save it as file to a folder then import the data from the folder. Other option would be to move the data to a database table to preserve the history.
来源：https://stackoverflow.com/questions/62014793/how-can-i-preserve-old-data-in-powerbi