mysql alter table add column
ALTER TABLE table
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;
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