How to get column attributes query from table name using PostgreSQL?

Question

I have a project and I need a query to get all attributes of the columns (Column Name, Position, Data Type, Not Null? and Comments) all this using table name.

I ach

Answer 1

I think you can use this:

select ordinal_position AS num, column_name as name, data_type as typ, character_maximum_length as lenth, 
is_nullable as nullable, column_default as default
from INFORMATION_SCHEMA.COLUMNS
WHERE table_catalog='DatabaseName' AND table_name='TableName'