blob

问题 So I am trying to show an image from my mysql database. The image is saved as a blob format. I made seperate php file for fetching the image. I then call this file from where I want to show the image like so: <img src="image.php?id=3" /> This is the file that fetches the image: <?php require 'scripts/connect.php'; if(isset($_GET['id'])) { $id = mysql_real_escape_string($_GET['id']); $q = $db->prepare("SELECT image FROM products WHERE id = '$id'"); $q->execute(); $data = $q->fetch(); header(

问题 I am reading blobs with size between 100kb and 1000kb from SQlite in my Android App using the following code : public Object getCachefromDb(String sIdentifier){ String sSQL = " Select cache from cachtable where identifier='" + sIdentifier + "'"; Cursor c = null; try { c = connection_chronica.rawQuery(sSQL, null); } catch (SQLiteException e) { Log.v("SQLite Excetion", e.getMessage()); } c.moveToFirst(); Log.v("DEBUG load Cache","sIdentifier : " + sIdentifier); byte[] bData=null; try{ bData = c

问题 I am having an issue with updating the Blob, the issue is that the pst.executeUpdate with not execute, however, if I take out the everything that relates the the Blob/Tryinng to update the Blob everything else will update i.e. ID, Name, Address etc. Everything functions as it should, the issue is just with the Blob. updateEmployee.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub Connection connection = null;

问题 I am trying to save the image in imageview alongwith the other fields that user inputs. I wish to store the image in database and it will be retrieved on other page when the data is to be viewed. What changes do i need to make in my "NewPat.java" as well as "PatientInfoDB.java". Here's my code.. public class NewPat extends Activity implements OnClickListener{ //Display pic ImageView iv; Intent i; final static int cameraData=0; Bitmap bmp; //from gallery Button buttonLoadImage; private static

问题 I am using the below jsfiddle code to separate the code to create csv file.It works fine except when there is comma in my column text.How can I change the separator? http://jsfiddle.net/5KRf6/3/ function makeCSV() { var csv = ""; $("table").find("tr").each(function () { var sep = ""; $(this).find("input").each(function () { csv += sep + $(this).val(); sep = ","; }); csv += "\n"; }); $("#csv").text(csv); window.URL = window.URL || window.webkiURL; var blob = new Blob([csv]); var blobURL =

问题 So I successfully retrieved my BLOB image from the database and set it to NSData *content.. content = [[NSData alloc] initWithBytes:sqlite3_column_blob(query, 16) length:sqlite3_column_bytes(query, 16)]; What I am trying to do is to get this content into a NSString, because I would like to then pass this string to javascript and display the image. I am not exactly sure if this is even possible, but i have read on the link below that you can display images in css/html in base64. http://mark

问题 I'm trying to use IBM's websocket implementation of their speech-to-text service. Currently I'm unable to figure out how to send a .wav file over the connection. I know I need to transform it into a blob, but I'm not sure how to do it. Right now I'm getting errors of: You must pass a Node Buffer object to WebSocketConnec -or- Could not read a WAV header from a stream of 0 bytes ...depending on what I try to pass to the service. It should be noted that I am correctly sending the start message

问题 I'm trying to use IBM's websocket implementation of their speech-to-text service. Currently I'm unable to figure out how to send a .wav file over the connection. I know I need to transform it into a blob, but I'm not sure how to do it. Right now I'm getting errors of: You must pass a Node Buffer object to WebSocketConnec -or- Could not read a WAV header from a stream of 0 bytes ...depending on what I try to pass to the service. It should be noted that I am correctly sending the start message

问题 The Google AppEngine PHP API provides a way to read and write to a blob. public function setBlobValue($blobValue) { $this->blobValue = $blobValue; } public function getBlobValue() { return $this->blobValue; } However this doesn't seem to work when writing / reading an html string stored in a blob, e.g. $string = "<div>Test</div>" $obj->setBlobValue(base64_encode($string)); then after a query: $string = base64_decode($obj->getBlobValue()); doesn't work - is there something I'm doing wrong here

问题 Trying to loop through a test database with images (I know many say not to do this, but it simplifies so much in terms of backups, etc.). I can get the result I want by creating image files on the fly, but there must be a way to do this without creating files. Can someone suggest a syntax I can use without having to create these image files? Here is what I have working: <?php // configuration $dbhost = "localhost"; $dbname = "test"; $dbuser = "root"; $dbpass = ""; // database connection $conn