blob

I know this question has been asked many times but I couldnot solve this using any of them. I am new to sqlite and cannot understand what I am doing wrong. WHAT I AM TRYING I am trying to make a profile view page. I am able to fetch all details from my sqlite database but i am not able to display my profile picture. TABLE STRUCTURE **username|landline|mobile|email|profilepicture** john |xxxxxxxx|xxxxxx|x@x.x|blob WHAT I TRIED $sql = "SELECT * FROM profile"; $query = $db->query($sql); while($row = $query->fetchArray(SQLITE3_ASSOC) ){ echo "NAME = ". $row['user_name'] . "<br/>"; echo "LANDLINE =

Does anyone know how to convert a Blob into an image with Flutter? It looks like the 'dart:html' library is not available in Flutter. Any help is appreciated. Thank you! If anyone is interested, I found the solution: Grab the blob from JSON: var blob = yourJSONMapHere['yourJSONKeyHere']; var image = BASE64.decode(blob); // image is a Uint8List Now, use image in a Image.memory new Container( child: new Image.memory(image)); This worked for me! 来源： https://stackoverflow.com/questions/45549801/display-blob-as-image-in-flutter

I am saving docx file as BLOB type in mysql dadabase. after the saveing i am trying to see the content of the file through fetching the content of filed but it is showing some unreadable content.This this is working well for file having extention .doc but i don't know why it is not working for the .docx file.If any answer please help with proper explanation. Make a query to select the data, then put the result in a variable. Use file_put_content to get the docx file. Just be carefull with header. To read it, the process is different from a doc. You have to "unzip" the docx and read the xml

今天在写前端的时候碰到一些问题，现在对于web网页操作文件进一步了解。 主要参照： http://www.cnblogs.com/zichi/p/html5-file-api.html FileList 对象针对表单的 file 控件。当用户通过 file 控件选取文件后，这个控件的 files 属性值就是 FileList 对象。它在结构上类似于数组，包含用户选取的多个文件。如果 file 控件没有设置 multiple 属性，那么用户只能选择一个文件，FileList 对象也就只有一个元素了。 <input type='file' multiple/> <script> document.querySelector('input').onchange = function () { console.log(this.files); }; </script> 控制台输出文件相关内容。 Blob 上图中我们看到，File 对象是继承自 Blob 对象的，Blob 又是什么鬼？ Blob（Binary Large Object）对象代表了一段二进制数据，提供了一系列操作接口。其他操作二进制数据的 API（比如 File 对象），都是建立在 Blob 对象基础上的，继承了它的属性和方法。 生成 Blob 对象有两种方法：一种是使用 Blob 构造函数，另一种是对现有的 Blob

Using Java, is it possible to set the time to live (TTL) on a blob that is being created in Google Cloud Storage? I do not want to set TTL on the Bucket - only on the items within the Bucket. For example, 14 days after its creation date, I would like any files that are stored in a specific bucket to be deleted. Here is an example of how I am creating my blob: WriteChannel writer = storage.writer(BlobInfo.newBuilder(blobId).setContentType("application/json").build()); I was looking for a way to set the TTL upon creation but have not been able to find a solution. Please advise It is not

I have several texts which are very long (tens of thousands of characters). Which is the best option to store such texts in SQLite: as TEXT or as BLOB ? In SQLite's database file format , TEXT and BLOB values are stored in exactly the same way. The only difference is that the bytes of a TEXT value are assumed to be valid UTF-8. Answer: TEXT BLOB is good only for binary files and generally storing any binary data (images, songs, etc) in a database is not a good idea and is to be done only as a last resort. Here is list of data types in SQLite and which data type from SQL are their corresponding

Using JdbcTemplate I would like to call MERGE SQL statement which will insert a new record to the table or update if row with specific key already exists. The key part is that one of the column is of the Oracle BLOB type. Here is what I tried till now: Try 1. Sql statement: String sql = "" + "MERGE INTO file_thumbnails " + " USING (SELECT ? as file_c_id, ? as thumbnail_type, ? as thumbnail_image FROM DUAL) tmp " + " ON (file_thumbnails.file_c_id = tmp.file_c_id AND " + " file_thumbnails.thumbnail_type = tmp.thumbnail_type) " + " WHEN MATCHED THEN " + " UPDATE " + " SET thumbnail_image = tmp

I load my image (blob data ) in my GETer Entity When I just return ($this->foto) in my GETer I see :Resource id #284 on the screen When I change my GETer like this : return stream_get_contents($this->foto); I see these : ���JFIF��� ( ,,,,,,,, ( and more ) In my Controller a call the index.html.twig to show all my entities /** * Lists all Producten entities. * */ public function indexAction() { $em = $this->getDoctrine()->getManager(); $entities = $em->getRepository('CustomCMSBundle:Producten')->findAll(); return $this->render('CustomCMSBundle:Producten:index.html.twig', array( 'entities' =>