问题
While creating a table in Athena; it gives me following exception:
no viable alternative at input
回答1:
hyphens are not allowed in table name.. ( though wizard allows it ) .. Just remove hyphen and it works like a charm
回答2:
Unfortunately, at the moment the syntax validation error messages are not very descriptive in Athena, this error may mean "almost" any possible syntax errors on the create table statement.
Although this is annoying at the moment you will need to check if the syntax follows the Create table documentation
Some examples are:
- Backticks not in place (as already pointed out)
- Missing/extra commas (remember that the last column doesn't need the comma after column definition
- Missing spaces
- More ..
回答3:
This error generally occurs when the syntax of DDL has some silly errors.There are several answers that explain different errors based on there state.The simple solution to this problem is to patiently look into DDL and verify following points line by line:-
- Check for missing commas
- Unbalanced `(backtick operator)
- Incompatible datatype not supported by HIVE(HIVE DATA TYPES REFERENCE)
- Unbalanced comma
- Hypen in table name
回答4:
In my case, it was because of a trailing comma after the last column in the table. For example:
CREATE EXTERNAL TABLE IF NOT EXISTS my_table (
one STRING,
two STRING,
) LOCATION 's3://my-bucket/some/path';
After I removed the comma at the end of two STRING, it worked fine.
回答5:
In my case, it was an extra comma in PARTITIONED BY section,
回答6:
In my case, I was missing the singlequotes for the S3 URL
回答7:
In my case, it was that one of the table column names was enclosed in single quotes, as per the AWS documentation :( ('bucket')
回答8:
My case: it was an external table and the location had a typo (hence didn't exist)
Couple of tips:
- Click the "Format query" button so you can spot errors easily
- Use the example at the bottom of the documentation - it works - and modify it with your parameters: https://docs.aws.amazon.com/athena/latest/ug/create-table.html
来源：https://stackoverflow.com/questions/40912086/amazon-athena-no-viable-alternative-at-input