Retrieve from other table

Hello,

Let me get straight to the point. I want to retrieve data from another table based on the date.

I have two tables;

The first one is as follows: 

The second one is as follows: 

So in the column "Result" I want to have the work day of the first table, and this linked by the column "Date" and "maand forecast". 

Conclusion: I want work day 18 in my second table whereby the date is linked. 

Thanks in advance!