Get certified for free when you join Fabric Data Days 2026 and dive into Fabric, Power BI, SQL, AI, and other essential data skills.
Join nowJuly 7 - July 17 | Round 2 of the Power BI Dataviz World Championships. Don't miss your chance! Learn more
Hello everybody,
I have a little situation where I need your help.
The current situation is, that I have two different tables:
Table1
| Name | Booking Date | Hours |
| Person 1 | 01.01.2022 | 160 |
| Person 1 | 01.02.2022 | 150 |
| Person 2 | 01.01.2022 | 145 |
| Person 1 | 01.03.2022 | 160 |
| Person 2 | 01.03.2022 | 170 |
| Person 2 | 01.02.2022 | 165 |
Table2
| Name | Start date | End date | ID |
| Person 1 | 01.01.2022 | 01.02.2022 | 00001 |
| Person 1 | 01.03.2022 | 01.04.2022 | 00002 |
| Person 2 | 01.01.2022 | 01.06.2022 | 00003 |
I'd like to have the ID from Table 2 in Table 1 depending on the Booking Date in Table 1. For example:
| Name | Booking Date | Hours | ID |
| Person 1 | 01.01.2022 | 160 | 00001 |
| Person 1 | 01.02.2022 | 150 | 00001 |
| Person 1 | 01.03.2022 | 160 | 00002 |
I have tried to create a calculated column like this:
Solved! Go to Solution.
Sounds like a person has multiple entries in Table2 with overlapping dates, so the booking cannot determine which ID is correct.
You could try something like
ID =
var currentPerson = 'Table1'[Name]
var currentDate = 'Table1'[Booking date]
return CALCULATE( MIN( 'Table2'[ID]), 'Table2'[Name] = currentPerson),
'Table2'[Start date] <= currentDate && 'Table2[End date] >= currentDate
)which will try and return the first booking which matches.
You can add a calculated column like
ID =
var currentPerson = 'Table1'[Name]
var currentDate = 'Table1'[Booking date]
return CALCULATE( LOOKUPVALUE( 'Table2'[ID], 'Table2'[Name], currentPerson),
'Table2'[Start date] <= currentDate && 'Table2[End date] >= currentDate
)
Thanks for the quick response, unfortunately it was not working for me. I get the error "A table of multiple values was supplied where a single value was expected"
Sounds like a person has multiple entries in Table2 with overlapping dates, so the booking cannot determine which ID is correct.
You could try something like
ID =
var currentPerson = 'Table1'[Name]
var currentDate = 'Table1'[Booking date]
return CALCULATE( MIN( 'Table2'[ID]), 'Table2'[Name] = currentPerson),
'Table2'[Start date] <= currentDate && 'Table2[End date] >= currentDate
)which will try and return the first booking which matches.
That was working, thanks a lot!!
Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.
If you love stickers, then you will definitely want to check out our community sticker challenge, Barcelona edition!
Check out the July 2026 Power BI update to learn about new features.