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Saving a pdf file in to MSSQL database

Hi,

I am using Zend_File_Transfer_Adapter_Http to upload a file to server and then use the file_get_contents to read the contents and encode using base64 to save to mssql database.

$tmpContnets = file_get_contents($filename, FILE_USE_INCLUDE_PATH);
$filecontent = base64_encode($tmpContnets);	
$newFileInfo['intDocSectionId'] = $fileSection;
$newFileInfo['intDocSize'] = $sizeOfFile;
$newFileInfo['strDocType'] = $filemimetype;
$newFileInfo['strDocName'] = $displayFileName;
$newFileInfo['strDocContents'] = $filecontent; 
$newFileInfo['datDocCreated'] = gmdate('Y-m-d H:i:s');
$newFileInfo['intDocCreatedBy'] = $user->userid;
$newFileInfo['strExt'] = $docext;

$newDoc->putNewDocument($newFileInfo)

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to save I am using a class that extends Zend_Db_Table_Abstract.

class ABC_DbTable_Documents extends Zend_Db_Table_Abstract {
	protected $_schema = 'Accounts.dbo';
	protected $_name = 'tDocuments';
	protected $_primary = 'intDocId';

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public function putNewDocument(array $newDocument) {
        
        try {
              $newRow = $this->createRow($newDocument);
              $newRow->save();
            return true;
        } catch (Exception $e){
            Log::error(get_class(), __LINE__, $e->getMessage(), true);
            return false;
        }
    }

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The question is, when this code runs, it take supper long time to save the contents in to the database. The database is MSSQL. Document Content filed is set as varchar(MAX).

any idea what is happening here..

thanks
Peiris

Ray Paseur

No idea; there is not enough information here to make a determination. But I can give you some ideas. Almost always when there is a slow script the problem is found in the I/O subsystem (which makes sense because disk I/O operations are orders of magnitude slower than in-memory processing). So here is what I would do. First try uploading a very, very small file, say 1K, and time the operation. Then upload a 10K file and time the operation. Did it take ten times longer? If so the situation is probably caused by the speed of the internet connection. Next, I would go into the code and remove the upload - just keeping the data base insertion. Is it still slow without the upload? If not, you can pretty much indict the speed of the internet connection.

If none of these things have any measurable effect on response time, then you might want to look at using YSlow to see if the overall script is just slow. That happens sometimes with frameworks.

DcpKing

What version of SQL Server are you using? If it's 2012 take a look at the File Table feature, which is a way of keeping files under the thumb of the database management system without ever actually reading them in to tables.

hth

Mike

Robert Saylor

I do not know MSSQL but I do know MySQL. In MySQL you do not store binary in a VARCHAR but you use a BLOB or a LONGBLOB. Might be the same for MSSQL. Hope this helps.

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Peiris

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Peiris

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