Read: MySQL Binary Storage using BLOB VS OS File System: large files, large quantities, large problems To Do or Not to Do: Store Images in a Database which concludes If you on occasion need to retrieve an image and it has to be available on several different web servers. But I think that’s pretty much … Read more
Try this using, this or useragent if (navigator.appVersion.toString().indexOf(‘.NET’) > 0) window.navigator.msSaveBlob(blob, filename); else { var blob = new Blob([‘stringhere’], { type: ‘text/csv;charset=utf-8’ }); var link = document.createElementNS(‘http://www.w3.org/1999/xhtml’, ‘a’); link.href = URL.createObjectURL(blob); link.download = ‘teams.csv’; link.click(); }
I extended SimpleCursorAdapter, and while I did not use a ViewBinder here is my code for using an image stored as a blob in an sqlite database in a listview. This was adapted from an article I read here. My layout file for a row is: row_layout_two_line.xml <?xml version=”1.0″ encoding=”utf-8″?> <LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android” android:layout_width=”match_parent” android:layout_height=”match_parent” android:background=”@drawable/select_item”> … Read more
You will want to check the MySQL configuration value “max_allowed_packet”, which might be set too small, preventing the INSERT (which is large itself) from happening. Run the following from a mysql command prompt: mysql> show variables like ‘max_allowed_packet’; Make sure its large enough. For more information on this config option see MySQL max_allowed_packet This also … Read more
thedata = open(‘thefile’, ‘rb’).read() sql = “INSERT INTO sometable (theblobcolumn) VALUES (%s)” cursor.execute(sql, (thedata,)) That code of course works as written only if your table has just the BLOB column and what you want to do is INSERT, but of course you could easily tweak it to add more columns, use UPDATE instead of INSERT, … Read more
I just put it here: var input = document.querySelector(“input[type=file]”); input.addEventListener(“change”, handleFiles, true); // for url window.URL = window.URL || window.webkitURL; function handleFiles(evnet) { var file = event.target.files[0]; document.querySelector(‘iframe’) .setAttribute(‘src’, window.URL.createObjectURL(file)); } <!DOCTYPE html> <html> <head> </head> <body> <form method=”get” entype=”multipart/form-data” target=”binaryFrame”> <input id=”#avatar” type=”file” name=”file” /> <input type=”submit” /> </form> <iframe name=”binaryFrame”></iframe> </body> </html>
Solution After some significant Googling I managed to find the missing piece to the puzzle: MediaSource Effectively the process goes like this: Create a MediaSource Create an object URL from the MediaSource Set the video’s src to the object URL On the sourceopen event, create a SourceBuffer Use SourceBuffer.appendBuffer() to add all of your chunks … Read more
I read that the data type can be used to store files. According to MySQL manual page on Blob, A BLOB is a binary large object that can hold a variable amount of data. Since it’s a data type specific to store binary data it’s common to use it to store files in binary format, … Read more
earlier versions of phpmyadmin had a setting called $cfg[‘ShowBlob’] = TRUE; That would allow you to view the contents of blobs in the browser. You should note that this would cause chaos if you were storing binary files in blobs, since you would see endless gobblygok in the browser window. There are some people (like … Read more
You’re probably removing the resource too soon, try delaying it … a.click(); setTimeout(function(){ document.body.removeChild(a); window.URL.revokeObjectURL(url); }, 100); }