Receiving error upon attempting to activate survey

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4 years 7 months ago #94173 by philsalwasser
philsalwasser created the topic: Receiving error upon attempting to activate survey
Hello all!

I have been creating a survey that is of substantial size. There are around 65 question groups and around 20 questions per question group. There is logic built in for every group and many of the questions within the group.

Upon attempting to activate the survey I receive the following error:
Survey table could not be created. Database error!! 'surveytablecreation'

After much troubleshooting, I have found that the issue occurs after 10 question groups. I'm able to activate just fine from 1 to 10 groups, but as soon as I hit 11 question groups the error presents itself. Am I dead in the water?

Thanks for any assistance you are able to provide!

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4 years 3 months ago #98265 by kobaltz
kobaltz replied the topic: Receiving error upon attempting to activate survey
Did you ever find a resolution to this? I am in the same situation with about 17 question groups and 20-30 questions per group.

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4 years 3 months ago #98267 by philsalwasser
philsalwasser replied the topic: Receiving error upon attempting to activate survey
Unfortunately, the solution was to break my survey in to multiple surveys. The issue stems from a limitation on the number of columns that can be used in the database.

manual.limesurvey.org/General_FAQ#What_l...does_LimeSurvey_have ...

You may be able to tweak your Database engine to allow for more columns, but it's unlikely that will fix your problem

The best advice I can give you is to keep your survey as efficient as possible, and cut back on the number of question groups, questions, or multiple choice/multiple answer questions.

HTH,
Phil
The following user(s) said Thank You: kobaltz

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4 years 3 months ago #98268 by kobaltz
kobaltz replied the topic: Receiving error upon attempting to activate survey
Found a useful article. The hard max is 4096 columns, but there are several factors that could create a soft limitation of less.

dev.mysql.com/doc/refman/4.1/en/column-count-limit.html

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