file.php?file=myfile.pdf so that ACL and other cecks can be performed, reading that you use. htaccess or block direct file access to your files via the webserver itself and use a wrapper around these file (in PHP, something like. If you do this for protecting your files, you should use either. It's is (IMO) a better practice to just store the path of the file in the database as a reference. Reading the files is also way faster since a webserver+filesystem is there for sending files to a client (or somewhere else). If these files are changed often (don't know if this is the case in your scenario), there is also a massive load on the DB-server. The four TEXT types are TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT. These differ only in the maximum length of the values they can hold. The four BLOB types are TINYBLOB, BLOB, MEDIUMBLOB, and LONGBLOB. Why are they supposed to be stored in a DB anyway? Accessing it via the filesystem is way more efficient to handle and you avoid massive bloat from the tables. A BLOB is a binary large object that can hold a variable amount of data. This is not the answer per se, but a very good advice for this topic: I've included my config file below: ĮDIT: I can successfully INSERT a file of size 41,586 KB, but not one of 44,119 KB. So, let’s create a table named profiles where we will store the student id, name, bio, and profile picture. Where is this file-size limitation arising? The first thing we need is the table having a BLOB-type column. Why do I get an Out of Memory error for the larger files, and not the smaller? The server is a virtual server, with 4GB allocated and nothing else running that could be interfering. However, now that I am inserting larger files in the 90MB+ range, I am recieving an "Out of Memory" exception, with a number of bytes needed equal to the size of the file I tried to insert. This worked fine for several files of 30MB - 40MB.
Mysql insert into blob how to#
Having read several guides on how to store files in a database, I increased the max_allowed_packet setting in the config file to "512M", more than enough for the files that I would actually be inserting. Obviously, where attachmentID is an int, and attachmentData is a large byte array.
The INSERT command I'm using is as simple as possible: INSERT INTO table (AttachmentID, Data) VALUES (attachmentID, attachmentData) | AttachmentID | int(11) | NO | PRI | NULL | | To write a file to a database, we need to convert the file to a byte array, then use the byte array as a parameter to an INSERT query. | Field | Type | Null | Key | Default | Extra | The table I'm using is structured as follows: +-+-+-+-+-+-+
I'm using a MySQL database to store files.
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