如何通过从上一个活动中的db表中选择列表项来从新活动中的特定db表中检索数据

I need some help here, I am retrieving a list of items (categories) from a database table in the main activity and that’s all working well. The issue is that the user is supposed to click on one of the items which will cause another table in the db to be queried but in another activity (workbook.java). So how do I carry the IDs of the categories clicked to the next activity and also know exactly which item was clicked so that the right table is queried?I need some help here, I am retrieving a list o