Databricks Community

 When a sales query runs slowly, inspect how many rows each join produces before changing compute size.Consider a hypothetical retailer joining order lines to payments using order_id. One customer’s order has three product lines and two payment recor...

 A practical data quality lesson: choose the response to a failed rule based on its business impact.Consider a hypothetical retailer using Azure Databricks. An incoming order has a valid order ID and sales amount, but its customer ID is missing.A rul...

Structured Streaming: Choose Watermarks Around Real Arrival DelaysA practical streaming lesson: measure how late business events arrive before choosing a watermark threshold.Consider a hypothetical retailer using Azure Databricks to calculate sales i...

DELETE Removed the Customer Record—but Did It Remove the Data?A successful Delta Lake DELETE makes a record disappear from the current table version. However, it may not immediately remove that record from the underlying storage files.Imagine a ficti...

Enterprise AI does not usually fail because the model lacks intelligence.It fails because the model does not understand what the organization means.Consider a simple question:“What is our current exposure to active customer?”Behind this question are ...