blob

I'm trying to use a SimpleCursorAdapter with a ViewBinder to get an image from the database and put it into my ListView item view. Here is my code: private void setUpViews() { mNewsView = (ListView) findViewById(R.id.news_list); Cursor cursor = getNews(); SimpleCursorAdapter curAdapter = new SimpleCursorAdapter( getApplicationContext(), R.layout.cursor_item, cursor, new String[] { "title", "content", "image" }, new int[] { R.id.cursor_title, R.id.cursor_content, R.id.news_image }); ViewBinder viewBinder = new ViewBinder() { public boolean setViewValue(View view, Cursor cursor, int columnIndex)

I want to upload a file and store it in the database. I created a LargeBinary column. logo = db.Column(db.LargeBinary) I read the uploaded file and store it in the database. files = request.files.getlist('file') if files: event.logo = files[0].file.read() Is this the proper way to store an image as binary in the database? How do I convert the binary data into an image again to display it? davidism If you absolutely need to store the image in the database, then yes, this is correct. Typically, files are stored in the filesystem and the path is stored in the database. This is the better solution

I need to read and write BLOB data to a database. Here is my structure table #define CREATE_TABLE_USERS_SQL "CREATE TABLE IF NOT EXISTS %@ ( \ UserID INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, \ Name VARCHAR(50), \ Image BLOB);" How can I insert it into database, and then retrieve from it? Environment: iPhone SDK 4.1 SQLite3 database. This code fails: NSData * buf2 = [[NSData alloc] init]; sqlite3_column_blob(statement, 5); buf2 = sqlite3_column_bytes(statement, 5); user.image = [UIImage imageWithData: buf2]; yozhik Thanx all!! With yours help I'v solved problem and want to share results for

Given var data = new Array(1000000); for (var i = 0; i < data.length; i++) { data[i] = 1; } var blob = new Blob([data]); where is binary data representation of array stored? All variables that are not explicitly represented in any other storage are stored in memory (RAM) and lives there till end of your program or while you unset it (clear it from memory). TLDR; In RAM This will not answer your question fully. So what happens when a new Blob() is declared? From official fileAPI documentation , The Blob() constructor can be invoked with zero or more parameters. When the Blob() constructor is

I want to write a python script that populates a database with some information. One of the columns in my table is a BLOB that I would like to save a file to for each entry. How can I read the file (binary) and insert it into the DB using python? Likewise, how can I retrieve it and write that file back to some arbitrary location on the hard drive? 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