Why is this code adding observations to a merged dataset?

[ballardw]

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@Desi2003 wrote:

Thank you for your input, but I did not use an INPUT statement. I also made sure both sets are character variable with 49 length. 

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That is not consistent with your earlier post of

Posted 8 hours ago (188 views)  |   In reply to Desi2003

A follow-up: I have just realized that TRACT_NAME in Geo_Reference_Table is 49 in length and PhysicalActivity is 48 in length (they are both character variables). Could this be the problem? How do I address this?

which explicitly says they are different lengths, or your example of the text getting truncated.

[ballardw]

A follow-up: I have just realized that TRACT_NAME in Geo_Reference_Table is 49 in length and PhysicalActivity is 48 in length (they are both character variables). Could this be the problem? How do I address this?