Dataflow in PowerApps helps us to bring the existing data from Azure Sql along with the schema into CDS. From the App in a day lab materials, I understand, that I will be able to create entity form for CRUD operation and the data which is entered from the UI gets stored in the CDS. This usecase scenario is common in model driven apps and is consumed inside dynamics 365 portal or power apps portal. But in the case of Power Apps portals which are public facing, that would be having several requirement to insert and update data inside an enterprise database (Azure Sql, Oracle etc) - ie., CRUD operation on user database not the metadata database (ie., CDS).
My Question is, how can we perform the CRUD operation from powerapps portal and write the data into azure sql, which will be consumed by other different services across the organisation. We assume forms created using canvas apps cannot be consumed in Portal apps, and we can only use entity forms (which are model driven) in Portals, please validate my assumptions.
Please share me any material that you have for Power Apps portal similar to App in a day material.
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