sql server update query code example

Example 1: sql update query

--update query example
 UPDATE table_name
 SET column1 = value1, column2 = value2, ...
 WHERE condition;

Example 2: sql update select

UPDATE
    Table_A
SET
    Table_A.col1 = Table_B.col1,
    Table_A.col2 = Table_B.col2
FROM
    Some_Table AS Table_A
    INNER JOIN Other_Table AS Table_B
        ON Table_A.id = Table_B.id
WHERE
    Table_A.col3 = 'cool'

Example 3: update column sql server

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

Example 4: sql update record

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

Example 5: update sql

-- sql update using string format 
String = "UPDATE yourtable SET yourcolumn = '" + yourvealueintext + "' WHERE column = " + item_to_compare_the_position_of_Your_Column;
                                           -- or                                            
String = "UPDATE yourtable SET yourcolumn = " + yourvalue_in_number + " WHERE column = " + item_to_compare_the_position_of_Your_Column;

Example 6: sql update

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