When you created a stream, you either created the stream and started it immediately, or created the stream without starting it.
If you created the stream, but you didn't start it, then you can do so now. By starting the stream, Datastream can transfer data, schemas, and tables from the source database to the destination.
Start the stream
Go to the Streams page in the Google Cloud Console.
Select the check box to the left of the stream that you want to start.
In the dialog box, click START. The status of the stream changes from
After starting a stream, you can monitor it to verify that Datastream transferred data from the source database to the destination.