alter multiple columns in sql code example

Example 1: add multiple columns to table sql

//Example
ALTER TABLE employees
  ADD last_name VARCHAR(50),
      first_name VARCHAR(40);

Example 2: update multiple columns in sql

UPDATE table-name SET column-name = value, column-name = value WHERE condition = value

Example 3: add multiple columns to table sql

ALTER TABLE table_name
  ADD column_1 column_definition,
      column_2 column_definition,
      ...
      column_n column_definition;

Example 4: update query for multiple columns

UPDATE Person.Person
 Set FirstName = 'Kenneth'
    ,LastName =  'Smith'
 WHERE BusinessEntityID = 1

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