I am using Oracle 11g for my web application. I want to add a column and a comment to an existing table. I can do that easily with the below commands
ALTER TABLE
You can use below query to update or create comment on already created table.
SYNTAX:
COMMENT ON COLUMN TableName.ColumnName IS 'comment text';
Example:
COMMENT ON COLUMN TAB_SAMBANGI.MY_COLUMN IS 'This is a comment on my column...';