What?
This is an article to remind me how to modify a column in a database table the old fashioned way (as in stop making me use GUI interfaces so poorly programmed when even I've made better DBMS tools).

All SQL
-- Add a column to an existing table (giving it datatype char(2) and allowing NULL)
ALTER TABLE myTable ADD myColumn CHAR(2) NULL

-- Delete a column
ALTER TABLE myTable DROP COLUMN myColumn 

-- Reorder a column
ALTER TABLE myTable MODIFY COLUMN misplacedColumn AFTER otherColumn;

MySQL and Oracle PL/SQL
ALTER TABLE myTable
MODIFY myColumn myDataType

Microsoft Transact SQL (T-SQL)
ALTER TABLE myTable
ALTER COLUMN myColumn myDataType