Creating a table
Our Azure SQL export feature will create a table with the same name as the Data Builder data table you are exporting, with all spaces replaced by underscores (_). The table has columns corresponding to the fields in the Data Builder data table being exported.
Appending and updating rows
Unlike BigQuery exports, exports to Azure SQL are not partitioned by date. Instead, new data from the export is simply appended to the table, while any changed data will be updated in the affected rows.
Adding columns
When you edit the data table in Data Builder to add another field, this field will be added to the table in Azure SQL as a new column the next time the export runs. This column will be populated with the field's values going forward. Historical rows from before the new column was added will have the new field's value set to null.
Dropping columns
When you edit the data table in Data Builder to remove an existing field, this field's corresponding column will be dropped from the table in Azure SQL the next time the export runs.
Be careful: when dropping a column, historical data for the dropped fields will be deleted.