There is no view editor of Oracle in the 2017.3.
I hint the F4 to run the view of Oracle. I could get the table of the data. But I click the DDL in the result table, the text shows:
-- auto-generated definition
-- No source text available
Please add the function to edit the DDL of the Oracle Views. Thanks.
And Please make the DataGrip more powerful on the Oracle.( Like the PL/SQL Developer )