Question

我需要创建一个能够从我的表中删除多行的查询。为了做到这一点，我在数组中创建了一个数组，其中的值需要传递给该查询。这是我的代码：

var deleteRooms = [ [ 3, 23 ], [ 4, 23 ], [ 5, 23 ], [ 2, 23 ]];

connection.query("DELETE FROM rate_plans_rooms WHERE room_id = ? AND rate_plan_id = ? ",
[deleteRooms],function(err,results){
 if(err){return console.log(err)}

 else
 {                                          
    console.log('sended');
 }

});

但每次我收到这样的错误：

{ Error: ER_PARSE_ERROR: You have an error in your SQL syntax; check
 the manual that corresponds to your MariaDB server version for the
 right syntax to use near ' (4, 23), (5, 23), (2, 23) AND rate_plan_id
 = ?' at line 1

如何解决这个问题并正确发送我的查询？

Answer 1

您的问题的解决方案是使用＆＃39; IN＆＃39;在您的查询中：

var deleteRooms = [[3,23],[4,23],[5,23], [2,23]];

connection.query("DELETE FROM rate_plans_rooms WHERE (room_id, rate_plan_id) IN (?)",
    [deleteRooms],function(err,results){

    if(err) return console.log(err)
    else console.log('sended');
});

Answer 2

已接受的解决方案对我不起作用，因为它会产生Error: ER_OPERAND_COLUMNS: Operand should contain 2 column(s)错误。相反，这对我有用：

var deleteRooms = [[3,23],[4,23],[5,23], [2,23]];
queryArray = Array(deleteRoons.length).fill('(?)'));

connection.query("DELETE FROM rate_plans_rooms WHERE (room_id, rate_plan_id) IN ("+queryArray.join(',')+")",
    [deleteRooms],function(err,results){

    if(err) return console.log(err)
    else console.log('sended');
});

Node JS mysql用数组数组删除多行

2 个答案: