ParseExpection: no viable alternative at input

Question

I was trying to run the below query in Azure data bricks.

query=s"""WITH pre_file_user AS(
            SELECT id,
            typeid,
          CASE when dttm is null or dttm='' then cast('1900-01-01 00:00:00.000' as timestamp)
          else cast(dttm as timestamp)
          end as dttm
          from dde_pre_file_user_supp
)"""

spark.sql(query)

then I was getting the following error

ParseException:no viable alternative at input 'with pre_file_users AS (\n select id, \n typid, in case\n when dttm is null or dttm = '' then cast('1900-01-01 00:00:00.000 as timestamp)\n end as dttm\n from dde_pre_file_user_supp\n )'

Can I use WITH clause in data bricks or is there any alternative?

You're just declaring the CTE but not using it. Try adding `select * from pre_file_user` after the cte — blackbishop, Dec 31 '21 at 10:24

score 5 · Answer 1 · answered Dec 31 '21 at 10:54

I have mentioned reasons that may cause ‘no viable alternative at input’ error:

The ‘no viable alternative at input’ error message happens when we type a character that doesn’t fit in the context of that line.
Also check if data type for some field may mismatch.

The ‘no viable alternative at input‘ error doesn’t mention which incorrect character we used.

Refer this answer by piotrwest

Also refer this article

ParseExpection: no viable alternative at input

1 Answers1