Does Import CSV to Database v6 work for csv file with null values?

Are the null values separated by your defined delimiter?

Hi, 

Yes, it works with nulls only if the database columns allow null values. If columns are NOT NULL, it fails with "Error executing SQL." Update DB schema or preprocess the CSV to fix it.

The best approach is definitely to verify the database schema, as Srinivas mentioned. If the columns are defined as NOT NULL, then inserting null or empty values will cause SQL errors — which seems to be exactly what's happening in your case.

If modifying the database to allow nulls is not an option, there is a workaround:

You can use the readcsvlog() function to read the CSV file into a CDT. Once the data is loaded, you can loop through the CDT in Appian, check for null or empty values, and replace them with default values (e.g., "N/A" for text, 0 for numbers). After that, you can insert the cleaned data into the database using Write to Data Store Entity.

However, this workaround is significantly more complex and less efficient than simply updating the database schema to allow nulls in the appropriate columns. If possible, adjusting the DB structure is the cleaner and more maintainable solution

But I noticed today that if the 1st column in the CSV file is empty then it is throwing this error, if other columns in between are null, it is able to read and write NULL to the DB.