如何在MySQL中更新和插入多行

Question

I have an array $feedArray something like this

Array ( [0] => array('id'=>'3','val=>'Renta Comerciales'),
        [1] => array('id'=>'4','val=>'Renta de Casas'),
        [2] => array('id'=>'6','val=>'Venta de Casas '),
        [3] => array('id'=>'7','val=>'Venta de Departamentos'), 
        [4] => array('id'=>'1','val=>'Venta de Terrenos') ) 

I have to make two query in a table called categoriasPlantilla

Then table has three columns

plantilla ,categoriaFeed, id

I have to check if the val of the array exist in the categoriafeed column of table then I have to update that id with the array id

if not then I have to insert a new row to the table

The value for plantilla is 11

I know how to do multiple insert in one query but how I can build such a query for update ?

To begin I was thinking of doing something like this

$sql = "INSERT INTO categoriaplantilla (plantilla,categoriafeed,id) values ";
    $sqlUpdate = "UPDATE  categoriaplantilla ";
    foreach($feedArray as $key =>$val)
    {
        $sqlUpdate . =;
        $sql . = ;
    }

Please help me out

Thanks & Regards

Answer 1

You can't update rows set in one query. One row - one query. Also, you can use something like this

UPDATE table SET field1='aaa', field2='bbb' where id IN (1, 2,4).

But this query will set equal data to each row. Sometimes I use this one

INSERT INTO table(field1, field2) VALUES ('aaa', 'bbb')
ON DUPLICATE KEY
UPDATE SET field1='aaa', field2='bbb' where id IN (1, 2,4)

ps if you are use PK in your query, you may forgot about preformance almost in any case.

Answer 2

Most solutions used are based on checking primary keys, like INSERT INTO... ON DUPLICATE KEY , or REPLACE INTO... .

But, if you are checking non-primary keys which is column categoriaFeed as you mentioned, I suggest you can create a mysql procedure to do that using mysql functions.

The basic code should be like this:

DROP PROCEDURE IF EXISTS func;

DELIMITER //
CREATE PROCEDURE func()
BEGIN
    IF '123' in ('Renta Comerciales', 'Renta de Casas', 'Venta de Casas') THEN
        UPDATE `may` SET `fone` = 'aaaaa' WHERE `id` = 1;
    ELSE
        INSERT INTO `may` VALUES ('1','2','3');
    END IF;
END//
DELIMITER ;

CALL func();

The 123 equals to your val , you can check if it's in your given array. Then you can just update or insert data by the if-statement .

This is probably an useful way to solve your problem. I'm in GMT+8 time zone and I'm gonna sleep now, it's 23:00PM. I'll check your replies tomorrow to see what I can help then.