用于插入更新删除操作的列名的mysql别名

Question

Is it possible to have one column name but has 2 different names refer to it ?

I have a table with column name "iduser". But I want to use some php plugin, and the plugin uses column name "id".
So I wonder if there is a quick way in mysql to create alias "id" for the current columname "iduser". I wanted to do CRUD operations based on this.
I do this because I'm lazy to change all the column name of the plugin tobe "iduser".

Thx.

Answer 1

It's possible using a view .
Just make sure that your view definition meets the requirements at 19.5.3. Updatable and Insertable Views . But that shouldn't be a problem since you'd have the simplest 1:1 relationship using the primary key of the table.
How it will affect performance is up to you to measure...

---

eg

<?php
// this script creates a persistent table soFooTbl and a persistent view soFooView
// can't use temporary tables for this example
$pdo = new PDO('mysql:host=localhost;dbname=test;charset=utf8', 'localonly', 'localonly');
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
setup($pdo);

printTable($pdo, 'soFooTbl');
printTable($pdo, 'soFooView');

echo "deleting rows\n";
$pdo->exec('DELETE FROM soFooView WHERE id IN (1,2,3,4,5)');

printTable($pdo, 'soFooTbl');
printTable($pdo, 'soFooView');

function printTable($pdo, $src) {
    echo "---- $src ----\n";
    foreach( $pdo->query('SELECT * FROM '.$src, PDO::FETCH_ASSOC) as $row ) {
        echo join(', ', $row), " | ";
    }
    echo "\n";
}


function setup($pdo) {
    $pdo->exec('
        CREATE TABLE IF NOT EXISTS soFooTbl(
            idUser int auto_increment,
            val varchar(32),
            primary key(idUser)
        )
    ');
    $pdo->exec('TRUNCATE TABLE soFooTbl');

    $stmt = $pdo->prepare('INSERT INTO soFooTbl (val) VALUES (:val)');
    $stmt->bindParam('val', $val);
    foreach( range(1,10) as $val ) {
        $stmt->execute();
    }

    $pdo->exec('
        CREATE OR REPLACE VIEW
            soFooView
            (id,val)
        AS
            SELECT
                idUser,val
            FROM
                soFooTbl
    ');
}

prints

---- soFooTbl ----
1, 1 | 2, 2 | 3, 3 | 4, 4 | 5, 5 | 6, 6 | 7, 7 | 8, 8 | 9, 9 | 10, 10 | 
---- soFooView ----
1, 1 | 2, 2 | 3, 3 | 4, 4 | 5, 5 | 6, 6 | 7, 7 | 8, 8 | 9, 9 | 10, 10 | 
deleting rows
---- soFooTbl ----
6, 6 | 7, 7 | 8, 8 | 9, 9 | 10, 10 | 
---- soFooView ----
6, 6 | 7, 7 | 8, 8 | 9, 9 | 10, 10 |