BigQuery Load Error : Could not parse 'MM/DD/YYYY' as date for field shipped from CSV file

While loading CSV file with date values, bq load fails:


Error while reading data, error message: Could not parse '1/10/2019' as date for field shipped (position 1) starting at location 17


While doing bq load only YYYY-MM-DD is supported:

When you load CSV or JSON data, values in DATE columns must use 
the dash (-) separator and the date must be in the following 
format: YYYY-MM-DD (year-month-day).

You can,

  • Load the CSV file as-is to BigQuery (i.e. convert the column to STRING datatype)
  • Create a BigQuery view that transforms the shipped field from a string to a recognized date format. Use SELECT id, PARSE_DATE('%m/%d/%Y', shipped) AS shipped, name
  • Use that view for your analysis


posted on 01 Feb 21

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