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upload csv file to apex 19.2

in Oracle Application Express (MOSC) 10 comments

my apex 4.2.6 application has a feature to upload csv data file into wwv_flow_files. recently we upgrade to apex 19.2 and the feature kept saying " Incorrect file format for TCN upload. If you believe you are using the correct file, contact support."

There was a file browser item created. and in the setting, the storage type is "APEX_APPLICATION_TEMP_FILES". I checked the schema apex_190200 and could not find this table anywhere. the old one used to be WWV_FLOW_FILES. and dropdown list of storage type only shows two options: 1. APEX_APPLICATION_TEMP_FILES 2. blob column specified in item source attribute. The most weird thing is I can found view WWV_FLOW_FILES and my PL/SQL code was built using it. But this table name did not appear on the dropdown list. I need help to resolve this issue. Thank you.

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