1. Database connection operation: Two data sets come from the same database and can be connected through the database. In the Sailsoft report design interface, select a dataset and right-click "Dataset Properties". In the Dataset Properties window, select the Dataset Connection tab and configure the connection information to associate two datasets. , you can use the relevant fields in the report for data correspondence and calculation.

2. Script method: two data sets come from different data sources, or cannot be related through database connection, and can be processed through script. In the Sailsoft report design interface, select a dataset and right-click "Dataset Properties". In the data set properties window, select the "Script" tab, write script logic, and realize data correspondence and calculation.