1-- ALTER TABLE tbl_name ADD COLUMN column_name column_definition
2-- [FIRST|AFTER existing_column];
3ALTER TABLE office ADD COLUMN phone VARCHAR(200) DEFAULT '000' AFTER name;
4ALTER TABLE office ADD COLUMN flag INT(1) FIRST;
5ALTER TABLE office ADD COLUMN last_col INT(2); -- Last column is default position
6-- ↓ Test it (Fiddle)
1ALTER TABLE table
2ADD [COLUMN] column_name_1 column_1_definition [FIRST|AFTER existing_column],
3ADD [COLUMN] column_name_2 column_2_definition [FIRST|AFTER existing_column],
4...
5;