How to get the size of a varchar[n] field in one SQL statement?

Question

Suppose that I have a SQL table that has a varchar[1000] field called \"Remarks\".

I would like to craft a single SQL statement, which when executed, will return 100

Answer 1

select column_name, data_type, character_maximum_length    
  from information_schema.columns  
 where table_name = 'myTable'