mysql delete column code example

Example 1: how remove column in mysql

ALTER TABLE "table_name" DROP "column_name";

Example 2: mysql drop column

ALTER TABLE `claims_user_settings` DROP COLUMN `super_user`;

Example 3: how delete a column in mysql

ALTER TABLE table_name
  DROP COLUMN column_name;

Example 4: mysql add column

ALTER TABLE table_name
ADD [COLUMN] column_name column_definition [FIRST|AFTER existing_column];

Example 5: alasql delete column

var data = [{a:1,b:10},{a:2,b:20}];
    var res = alasql('SELECT * REMOVE COLUMN b FROM ?',[data]);
    // returns [{a:!},{a:2}]