Answers for "alter table mysql"

add new column to the table mysql

ALTER TABLE `TABLE_NAME` 
	ADD `COLUMN_NAME` VARCHAR(50) NULL
    AFTER `COLUMN_NAME_AFTER`;

alter table add column

ALTER TABLE table
ADD COLUMN column VARCHAR (255) NOT NULL AFTER column;

mysql add column

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

mysql alter table add column

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

alter table mysql

ALTER TABLE contacts
  ADD last_name varchar(40) NOT NULL
    AFTER contact_id,
  ADD first_name varchar(35) NULL
    AFTER last_name;

alter table query in mysql

ALTER TABLE `employees`CHANGE `emp_id` `emp_id` int(11) NULL;