Question

I am trying to change the default value of 2 columns from ‘N’ to ‘Y’ using the below query, but it throws a error. Any idea whats wrong in here. Error: Invalid Alter table option.

Alter Table USER
Modify 
CONTACT_FLAG  Default 'Y',
APPROVAL_FLAG Default 'Y' ;

Answer 1

You have to enclose the columns like this

alter table
   table_name
modify
   (
      column1_name  column1_datatype,
      column2_name  column2_datatype,
      column3_name  column3_datatype,
      column4_name  column4_datatype
   );