Get data type of field in select statement in ORACLE

Question

Can I get data types of each column I selected instead of the values, using a select statement?

FOR EXAMPLE:

SELECT a.name, a.surname, b.ordernum 
FR         


        

Answer 1

I usually create a view and use the DESC command:

CREATE VIEW tmp_view AS 
SELECT 
      a.name
    , a.surname
    , b.ordernum 
FROM customer a
  JOIN orders b
    ON a.id = b.id

Then, the DESC command will show the type of each field.

DESC tmp_view