I've just exported my survey results and I wanted to merge the database with some other info about responses, using ID number. To my concern the database with the results does not contain my ID number or e-mail or anything that allows me to to the merge. There is a "respons id" included at the begining of the database but it tells nothing to me - I simply don't know where it comes from and what it means.
I assume that you have used tokens for this survey and have token values that you want to include into the results file.
At the time of exporting you can choose to include the information from the tokens table, as long as you haven't set the survey as anonymous, because then there cannot be made any connection between the token table and the results table. Otherwise it wouldn't be anonymous.
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Provide your LS version and where it is installed (own server, uni/employer, SaaS hosting, etc.).
Always provide a LSS file (not LSQ or LSG).
Note: I answer at this forum in my spare time, I'm not a LimeSurvey GmbH employee.