Sql 更新 PDO 中的 clob 字段 (PHP) 不更新不抛出更新异常

Question

我在网上搜索了有关对 clob 字段执行 sql 更新的示例；我相信我使用的示例是最简单的示例，但到目前为止 none 已经有效。我正在尝试将 base64 编码的图像插入到 oracle 的 clob 字段中。下面是函数和 clob 条目数组。我检查了 table 并确认 clob 字段没有发生更新。

// update row with new clob values
private function clobUpdate($clobArray){
    try {
        foreach ($clobArray as $item) {
            $query = "UPDATE ". static::$table ." SET ". $item["clobField"] ." = EMPTY_BLOB() WHERE ID = :ID RETURNING ". $item["clobField"] . " INTO :blob";

            $stmt = $this->db->prepare($query);
            $stmt->bindParam(':id', $item["id"]);
            $stmt->bindParam(':blob', $item["clobValue"], PDO::PARAM_LOB);
            $blob = NULL;
            $this->db->beginTransaction();
            $stmt->execute();
            $this->db->commit();
            print_r($blob);
            die();
        }
    } catch(Exception $e){
        throw new Exception($e);
    }

}


 Array
 (
    [0] => Array
    (
        [clobField] => 0
        [clobValue] => data:image/png;base64,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
        [id] => 25
    )

)

***** 更新

根据 Fred 的错误处理 link 和 this 2007 补丁，我现在可以更新我的 clob。更新了以下功能：

// update row with new clob values
private function clobUpdate($clobArray){
    $this->db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    try {
        foreach ($clobArray as $item) {
            $query = "UPDATE ". static::$table ." SET ". $item["clobField"] ." = :CLOB WHERE ID = :ID";
            $stmt = $this->db->prepare($query);
            $stmt->bindParam(':ID', $item["id"]);
            $stmt->bindParam(':CLOB', $item["clobValue"], PDO::PARAM_STR, strlen($item["clobValue"]));
            $blob = NULL;
            $this->db->beginTransaction();
            $stmt->execute();
            $this->db->commit();
            print_r($blob);
            die();
        }
    } catch(PDOException $e){
        echo "Exception ". $e->getMessage();
        throw new Exception($e);
    }
}

Answer 1

注意：作为社区 Wiki 发布以将问题标记为已解决。

您正在使用 :ID 和 :id。区分大小写。

WHERE ID = :ID ... bindParam(':id', => bindParam(':ID',

使用 PDO 的错误处理http://php.net/manual/en/pdo.error-handling.php

然而，从 link 你发现的一个补丁，似乎也有助于成功更新你的数据库。

根据您的评论：

"Per Fred's error handling link and this 2007 patch I'm now able to update my clob. Updated function below:"

// update row with new clob values
private function clobUpdate($clobArray){
    $this->db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    try {
        foreach ($clobArray as $item) {
            $query = "UPDATE ". static::$table ." SET ". $item["clobField"] ." = :CLOB WHERE ID = :ID";
            $stmt = $this->db->prepare($query);
            $stmt->bindParam(':ID', $item["id"]);
            $stmt->bindParam(':CLOB', $item["clobValue"], PDO::PARAM_STR, strlen($item["clobValue"]));
            $blob = NULL;
            $this->db->beginTransaction();
            $stmt->execute();
            $this->db->commit();
            print_r($blob);
            die();
        }
    } catch(PDOException $e){
        echo "Exception ". $e->getMessage();
        throw new Exception($e);
    }
}

Sql 更新 PDO 中的 clob 字段 (PHP) 不更新不抛出更新异常

Sql update for clob field in PDO (PHP) doesn't update nor throw update execption

php

oracle

pdo

clob