Update source schema
You can update the metadata of a data source if the source schema, for example, table names in the data source has been changed. You can update the metadata of an imported solution even if the source schema has not been read in yet.
Procedure. Procedure
Click Connections in the Data set panel. The Connections section opens.
Select the connection you want to update.
Click Update source schema.
The metadata of the data source schema of the selected connection is updated.