Question

我有一个更新查询，我认为应该在一个请求中更新多行..

var cb = new Codebird;
cb.setConsumerKey("xxx", "xxx");
cb.setToken("xxx", "xxx");
var mediaid = "";
var img64 = img.toDataURL().split(",")[1];
var params = {
    "media_data": img64
};

cb.__call(
    "media_upload",
    params,
    function (reply, rate, err) {
        mediaid = reply.media_id_string;
        console.log(reply);
        cb.__call(
            "statuses_update", {
                media_ids: mediaid,
                status: msg
            },
            function (reply, rate, err) {
                console.log(reply);
            }
        );
    }
);

然而，这似乎只是更新X的val而不是Y的

Answer 1

UPDATE myTable 
SET val = val + 1 
WHERE id = 'X' 
   OR id = 'Y'

或

WHERE id in ('X', 'Y')

Answer 2

您的查询工作正常，但会忽略＆＃34; Y＆＃34;值因为它将被评估为：

UPDATE myTable SET val = val + 1 WHERE id = "X" or FALSE

因为＆＃34; Y＆＃34;将被评估为0，这是错误的。

你必须修复你的状况

(id = "X" or id = "Y")

sql查询只更新第一个匹配

2 个答案: