Finding Unique ID's in a single day

[Karthick461]

Hi,

 I have a table ( for example : Date and ID's are the columns). I would like to know how to find the unique Id's in a single day.. same ID must repeat in same day and other days.. but I need user ID to show only one time for one day... if next day has same user ID again means, then i need to show that as well..

Input:

Output I need is:

[Qiu]

@Karthick461 
If I am not mistaken, it can be done by a unique tool.