如何将 GROUPBY 日期与 Android 房间数据库一起使用？

Question

I'm trying to create a Room Database with Date, using this tutorial: https://developer.android.com/training/data-storage/room/referencing-data .

I enter the Date in this format: Fri Aug 21 16:05:30 GTM 2020 and I can insert several items with the same date, but with different times. How can I use query that GROUPBY by the same date (the same day)?

I try with SELECT * FROM table GROUPBY date but doesn't work.

Answer 1

I solved using SELECT * FROM user_table GROUP BY date(user_date/1000, 'unixepoch')