STRING to DATE in BIGQUERY

Question

I am struggling trying to do this with Google BigQuery:

I do have a column with dates in this following STRING format:

6/9/2017   (M/D/YYYY)
         


        

Answer 1

This solution can work

SELECT    CAST(
            CONCAT(
              SUBSTR(DT_DOCUMENTO, 0 , 4), 
              '-' ,
              SUBSTR(DT_DOCUMENTO, 5 , 2), 
              '-' , 
              SUBSTR(DT_DOCUMENTO, 7 , 2) 
            ) AS DATE
          ) AS FORMAT_DATE