Solved

Saving a pdf file in to MSSQL database

Posted on 2013-06-03
5
692 Views
Last Modified: 2013-06-10
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)

Open in new window



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';

Open in new window



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;
        }
    }

Open in new window



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
0
Comment
Question by:Peiris
5 Comments
 
LVL 108

Expert Comment

by:Ray Paseur
ID: 39217467
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.
0
 
LVL 16

Expert Comment

by:DcpKing
ID: 39217881
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
0
 
LVL 6

Expert Comment

by:Robert Saylor
ID: 39219213
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.
0
 

Accepted Solution

by:
Peiris earned 0 total points
ID: 39222519
I have found a way to work around with this. Instead using ZendFramework save methods, we use a stored procedure to save the info in to the MSSQL. This solve the issue. My guess is that when we use the Framework built in save methods, it try to check for security issues before it saving. Since its a base64 encoded files there are lot of text that need to be process before saving to the database (this may take long time). We are skipping that by directly binding a stored procedure to save the information.
0
 

Author Closing Comment

by:Peiris
ID: 39234090
I have found a solution.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

JSON is being used more and more, besides XML, and you surely wanted to parse the data out into SQL instead of doing it in some Javascript. The below function in SQL Server can do the job for you, returning a quick table with the parsed data.
This article discusses four methods for overlaying images in a container on a web page
The viewer will learn how to count occurrences of each item in an array.
Viewers will learn how the fundamental information of how to create a table.

943 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

6 Experts available now in Live!

Get 1:1 Help Now