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BrunieToons
Frequent Visitor

Problem merging on decimal data type

Does anyone know why about 10% of my records fail to join on this ID column, which is comes in from the data source as a decimal format? When I transform it to int, the join works. Here is the merge preview when both columns are in decimal format:

BrunieToons_0-1647354344232.png

 

1 ACCEPTED SOLUTION
edhans
Super User
Super User

Change it to integer format first. Decimal has 15 level precision and since PCs are floating point, what looks like to you 3 might be 2.9999999999999 or 3.000000001. You've seen that in Excel.

merging on whole numbers will work fine.



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1 REPLY 1
edhans
Super User
Super User

Change it to integer format first. Decimal has 15 level precision and since PCs are floating point, what looks like to you 3 might be 2.9999999999999 or 3.000000001. You've seen that in Excel.

merging on whole numbers will work fine.



Did I answer your question? Mark my post as a solution!
Did my answers help arrive at a solution? Give it a kudos by clicking the Thumbs Up!

DAX is for Analysis. Power Query is for Data Modeling


Proud to be a Super User!

MCSA: BI Reporting

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