“Not a file” exception on select after successful insert

Question

I have created a table:

DROP TABLE IF EXISTS sampleout;

CREATE EXTERNAL TABLE sampleout(
    id bigint,
    LNG FLOAT,
    LAT FLOAT,
    GMTDateTime TIMESTAMP,         


        

Answer 1

Basically, do not put the TEXTFILE LOCATION at the root. Even though it is blob storage (no true folders), the structure needed by HDFS or something else wants you to use at least one sub folder in the location.

Moving from

wasb://sampleout@xxxxxx.blob.core.windows.net/

to

wasb://sampleout@xxxxxx.blob.core.windows.net/somefolder/

fixed the issue. Credit: https://stackoverflow.com/users/4951010/andrew-moll