sql update complete table code example

Example 1: sql update

UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;

Example 2: how to change the value of a table in sql

UPDATE employees 
SET 
    address = '1300 Carter St',
    city = 'San Jose',
    postalcode = 95125,
    region = 'CA'
WHERE
    employeeID = 3;

Example 3: sql update

Updates existing data in a table.
Example: Updates the mileage and serviceDue values for a vehicle with an
id of 45 in the cars table.
UPDATE cars
SET mileage = 23500, serviceDue = 0
WHERE id = 45;

Example 4: sql update

/*Swap f to m and m to f*/
UPDATE salary
SET
    sex = CASE sex
        WHEN 'm' THEN 'f'
        ELSE 'm'
    END;