Check out example codes for "mysql drop column". It will help you in understanding the concepts better.

Code Example 1

ALTER TABLE "table_name" DROP "column_name";

Code Example 2

ALTER TABLE `claims_user_settings` DROP COLUMN `super_user`;

Code Example 3

ALTER TABLE Table_name
ADD Email varchar(255);

Code Example 4

add column in a table

Code Example 5

ALTER TABLE table_name

MODIFY column_name datatype;

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