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Hi,
In this query I have two separate tables. One with baby cows that have been born, and the second with the mothers.
In the first one I have the following columns
Baby cow ID
Mothers ID code
Date of birth
In the second I have the following column
Mothers ID code
The problem is that the same mother can give birth multiple times. So in the first table I sometimes have the same Mothers ID code with different birth dates
I want to be able to calculate the average time difference, that a given cow gives birth so that i end up with a table with these columns:
Mothers ID code
Month Average between Births (For example: 12.3 months)
I merged the two tables but i ended up with duplicates Mothers ID code (as expected), and i dont know where to go from there.
Table after merge:
Mothers ID code Date of birth
1001 10/2/2015
1001 11/2/2016
1001 7/3/2017
1002 10/4/2017
1003 7/10/2016
1003 8/9/2017
...
The result I want:
Mothers ID code Month Average between births
Hope that someone can help me
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