dousao2186 2014-04-05 20:36
浏览 311

某些查询出现PDO / MySQL错误(SQLSTATE [HY000])

In this snip-it of PHP code, I'm trying to access my database (dbconn is already defined)

public function get($statement) {
    echo $statement . '<br/>';
    $fetch = $this->dbconn->prepare($statement);
    $fetch->execute();
    $res = $fetch->fetchAll(PDO::FETCH_COLUMN|PDO::FETCH_GROUP);
    return $res;
}

Some example outputs of the whole program are, with the query = "example1"

SELECT * FROM keywords WHERE 1
SELECT bin FROM bins WHERE place LIKE 'example1'
{"centralLat":0,"centralLon":0,"errors":[],"posts":[],"location":"example1"}

The code returns the intersection of posts a location (that has been hashed out into bins on a map) and the keywords. The code works fine, it does interpretation on the string and does the appropriate querys, finds intersections, yadda yadda. The problem is for some queries, PDO fails to execute the query

in this case of query = "example2"

SELECT * FROM keywords WHERE 1
SELECT bin FROM bins WHERE place LIKE 'example2'  (this the the query that errors)

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000]: General error: Invalid column index'

In the actual cases, it seems to consistently throw out these errors on SOME queries, but not all. For example: it will always run example1 successfully, but never run example2 successfully. But if I run either of the querys on phpMyAdmin, I cannot replicate the errors, and get the desired results.

The only notable difference, between example1 (and the like) and example2 (and the like) is that querys that work are LONGER (40+ characters), while queries that fail are SHORTER (39-)

Im not sure whats causing this error, any help would be appreciated.

  • 写回答

0条回答 默认 最新

    报告相同问题?

    悬赏问题

    • ¥15 R语言Rstudio突然无法启动
    • ¥15 关于#matlab#的问题:提取2个图像的变量作为另外一个图像像元的移动量,计算新的位置创建新的图像并提取第二个图像的变量到新的图像
    • ¥15 改算法,照着压缩包里边,参考其他代码封装的格式 写到main函数里
    • ¥15 用windows做服务的同志有吗
    • ¥60 求一个简单的网页(标签-安全|关键词-上传)
    • ¥35 lstm时间序列共享单车预测,loss值优化,参数优化算法
    • ¥15 Python中的request,如何使用ssr节点,通过代理requests网页。本人在泰国,需要用大陆ip才能玩网页游戏,合法合规。
    • ¥100 为什么这个恒流源电路不能恒流?
    • ¥15 有偿求跨组件数据流路径图
    • ¥15 写一个方法checkPerson,入参实体类Person,出参布尔值