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Resolved Precision lost when exporting large numbers using ExportJSON

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  1. Ricardo Jasso
    Ricardo Jasso
  2. PowerBuilder
  3. Wednesday, 4 September 2019 01:03 AM UTC

Hi all,

When exporting large numbers to JSON using the ExportJSON DataWindow method the numbers are converted to scientific notation and precision is lost.

For example, a number like 284,932,785.56 gets converted to something like 2.8493E+08 (don't remember how many decimals) in the JSON string which is then imported as 284,930,000.00 using the ImportJSON method.

Is there a setting in the DataWindow control or object that can correct this?

Regards,

Ricardo

 

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Accepted Answer
Ken Guo @Appeon
Ken Guo @Appeon Accepted Answer Pending Moderation
  1. Wednesday, 4 September 2019 06:32 AM UTC
  2. PowerBuilder
  3. # Permalink

Hi Ricardo，

 

I can reproduce this issue on my end and have submitted it to the Appeon development team and they will fix it.

At the present, you can only work it around via change the column type in DW to Long type (to replace the Number type) or Varchar type (to replace the Decimal type).

 

Furthermore, it would be better if you could submit this bug to our support ticketing system https://www.appeon.com/standardsupport/ to ensure it is being properly received by our tech support and tracked.

 

Regards,

Ken

 

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Ricardo Jasso
Ricardo Jasso Accepted Answer Pending Moderation
  1. Wednesday, 4 September 2019 11:31 AM UTC
  2. PowerBuilder
  3. # 1

Thank you Ken.

That's what we did as a workaround. Convert the values to varchar in the select statement and treat them as strings. Since we use it for display purposes it didn't affect the end process.

I'll submit the bug report.

Regards,

Ricardo

 

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