sql update value in row code example

Example 1: sql update with statement

UPDATE mytable t		-- Update using WITH statement
SET value3 = (
    WITH comp AS (
        SELECT id, value1
        FROM mytable t
        WHERE value2 > 10
    )
    SELECT c.value1
    FROM comp c
    WHERE c.id = t.id
);

Example 2: sql update record

UPDATE table_name
SET column1 = value1, column2 = value2...., columnN = valueN
WHERE [condition];

Example 3: sql update record

SQL> UPDATE CUSTOMERS
SET ADDRESS = 'Pune'
WHERE ID = 6;

Example 4: updating values in sql

//to update value

UPDATE students SET course_id = 102
WHERE last_name = 'Jones'; -> 
                 if there is no condition it will update all!