Data Types: All Columns as STRING
If your data is messy (=multiple data types appearing within 1 column) and you want to make sure that everything will be successfully uploaded to BigQuery, you should use “All …
Data Types: Manual
If you want to retain control over data types for each column in your table, you can use Manual option in the Data Types dropdown. The down side is that …
Data Types: Autodetect
If you are lazy person like us, you will likely want to use Autodetect option for detecting the data types: This is a very helpful option when your table has …