How do I remove the first character of a string and treat the remaining values as an integer in BigQuery

问题

I currently am working with a large data set that was pre-populated in BigQuery. I have a column of orderID's which have the following set-up: o377412876, o380940924, etc. This is stored in a string. I need to do the following and am running into problems:

1) Strip off the first character using the BigQuery query language 2) Convert the remaining (or treat the remaining values), as an integer.

I will then run a join against the values. Now, I would be abundantly happier down this operation in either Python, R, or another language. That said, the challenge I have been given based on client needs is to write all the scripts in BigQuery's querying language.

回答1:

SELECT 10 * INTEGER(REGEXP_REPLACE(x, '^.', ''))
FROM 
  (SELECT 'o1234' AS x)

12340

来源：https://stackoverflow.com/questions/20157135/how-do-i-remove-the-first-character-of-a-string-and-treat-the-remaining-values-a