hi @hycday
The pagination in this demo is only a script that load parts of data into a single table. It does not load all the data. The pagination effect is achieved by adding few buttons that simulates that the table is full. Under the buttons you are loading next parts of your dataset. You can use this tutorial https://docs.handsontable.com/pro/1.8.2/tutorial-load-and-save.html to load sliced json sets after a page button click.