Na man it's no problem, we all were at some point a n00b
If:
Code:
ALTER TABLE table_name
ADD column_name datatype
Reverse:
Code:
ALTER TABLE table_name
DROP COLUMN column_name
If:
Code:
CREATE TABLE table_name
Reverse:
Code:
DELETE TABLE table_name
If:
Code:
INSERT INTO table_name
VALUES (some_value)
Reverse:
Code:
DELETE FROM table_name
WHERE column_name = some_value