Please Follow the below steps to insert data into data base
After extracting data from the source use Uipath database activities from manage packages
In database you need to create table and column name based on your extract datatable output.
3)use for each row to iterate the values from extracted datatable
Use execute query activity inside the for each row and configure connection based on your connection name and inisde the text box in execute query
“INSERT INTO YOUR TABLE NAME (YOUR COLUMNS Seperated By comma) VALUES(Your row Values);”