How can I save the data in tables if I choose to save the form and continue later ?

Hello,

I have 3 tables in my form in which data has to be entered at different time periods .I saw that the table erases all its data if i choose to keep it as a draft. How can I save the data in tables ?

It is saving automatically. However, the Autofill for save and continue will only save the data in the browser storage. To retrieve the saved data, you need to open the same form URL on the original browser where you use to fill and save the form.

I tried this and it worked for me for all the tables in the form. 

You may want to try save and continue by session URL:

https://www.jotform.com/help/97-How-to-Save-Forms-and-Continue-Later