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Interval Match accross 2 tables - Too complex for me !!

I currently have a dashboard which looks at rostered staff by hour.  I have created an interval match by hour to determine how many staff are rostered by department / day / Hour.

Table 1- Roster:

Roster Date,

Person ID,

Roster Start Time,

Roster End Time,

Staff Level (Qualified / Unqualified),


From Roster;

This works great, however I now want to bring in the requirements by hour also. However I don't know how to combine the Interval match so that it will reflect the data.  The table I have for the requirements is :

Table 2 - Requirements:

Roster Date,


Staff Level,

Requirement Start Time,

Requirement End Time,

Staff Required;

From Requirements;

The output I need to see is :


Roster Date

Person ID

Time (Hour)

Staff Level


Count Person ID (Rostered)

Sum Staff Required

If I could somehow link the intervalmatch with each other I think it would work, but I just can't get my head around it.

I realise this will give me duplicate data for the requirements (as it will not be grouped by department), however I can get around this by dividing it by the count of persod ID's.

Any thoughts?



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