Question

我正在将PHP PDO与t-sql（sql server 2017）一起使用。

表结构为

id | ip | datetime

这是代码。

$query ="MERGE INTO ". $this->table_name ." WITH (HOLDLOCK) AS target
                USING (SELECT ip=:ip , [datetime]=:datetime ) AS source        
                ON target.ip = source.ip
                WHEN MATCHED
                    THEN UPDATE
                        SET [datetime] = :datetime
                WHEN NOT MATCHED
                    THEN INSERT (ip, [datetime])
                        VALUES (:ip, :datetime);";
        // prepare query
        $stmt = $this->conn->prepare($query);

        // sanitize
        $this->datetime=date('Y-m-d H:i:s');
        $this->ip=htmlspecialchars(strip_tags($this->ip));

        // bind values
        $stmt->bindParam(":datetime", $this->datetime);
        $stmt->bindParam(":ip", $this->ip);

        // execute query
        if($stmt->execute()){
            return true;
        }

        return false;

当我使用sql profiler 2017时，我可以看到它执行的查询是

MERGE INTO online WITH (HOLDLOCK) AS target
                USING (SELECT ip='10.28.1.67' , [datetime]='2019-01-16 16:32:07' ) AS source        
                ON target.ip = source.ip
                WHEN MATCHED
                    THEN UPDATE
                        SET [datetime] = '2019-01-16 16:32:07'
                WHEN NOT MATCHED
                    THEN INSERT (ip, [datetime])
                        VALUES ('10.28.1.67', '2019-01-16 16:32:07');

当我自己在Sql Server Management Studio 2017中执行此脚本时，它会成功执行（匹配时和不匹配时）。

但是方法$stmt->execute()返回false，并且它不会更改表。而且我知道，如果查询不成功，$stmt->execute()将返回false。

可能是什么问题？

编辑：现在我收到“ 07002”错误代码，表示“调用参数列表或控制块无效。”。我将代码更改为

$query ="MERGE INTO ". $this->table_name ." WITH (HOLDLOCK) AS target
        USING (SELECT ip='". $this->ip."' , [datetime]='". $this->datetime."' ) AS source        
        ON target.ip = source.ip
        WHEN MATCHED
            THEN UPDATE
                SET [datetime] = '". $this->datetime."'
        WHEN NOT MATCHED
            THEN INSERT (ip, [datetime])
                VALUES ('". $this->ip."', '". $this->datetime."');"; 

 $stmt = $this->conn->prepare($query);

这有效。但是，第一个查询有什么问题？我不想使用串联

Pdo execute返回false（失败），但是生成的脚本执行良好

0 个答案: