发现很难做sql查询

Question

我检查了 $posts_not_to_select 中的数据是简单数组，其他一切都很好，但它显示如下所示的错误：

异常 #0 (Zend_Db_Statement_Exception)：SQLSTATE[42000]：语法 错误或访问冲突：1064 您的 SQL 语法有错误； 检查与您的 MySQL 服务器版本相对应的手册 在 'WHERE entity_id NOT IN (SELECT post_id FROM mst_blog_store_post WHERE NOT stor' 在第 1 行，查询是：SELECT * FROM mst_blog_post_entity ORDER BY created_at DESC LIMIT 1 WHERE entity_id NOT IN（从 mst_blog_store_post 中选择 post_id store_id = 1)

$posts_not_to_selectssql1 = "SELECT post_id FROM mst_blog_store_post WHERE NOT store_id = $storeID";
    $posts_not_to_select12 = $connection->fetchAll($posts_not_to_selectssql1);
    $posts_not_to_select = array();

    foreach ($posts_not_to_select12 as $key => $value){
        $posts_not_to_select[$key] = $value['post_id'];
    }

    "SELECT * FROM `mst_blog_post_entity` ORDER BY `created_at` ASC LIMIT 1 WHERE `entity_id` NOT IN ( '" . implode( "', '" , $posts_not_to_select ) . "' )"

Answer 1

SELECT * FROM `mst_blog_post_entity` WHERE `entity_id` NOT IN ( '" . implode( "', '" , $posts_not_to_select ) . "' )" ORDER BY `created_at` ASC LIMIT 1;

只需在 phpmyadmin 的 SQL 部分运行此查询，一切都会正常运行。

Answer 2

ORDER BY 在WHERE 子句之后。

SELECT * FROM `mst_blog_post_entity` 
WHERE `entity_id` NOT IN ( '" . implode( "', '" , $posts_not_to_select ) . "' )"  
ORDER BY `created_at` ASC LIMIT 1 

完整的序列是：

• 选择
• 来自
• 加入 [开启]
• 在哪里
• 分组依据
• 有
• 按 [限制] 订购