blob

问题 I have a PDF file on my server that I want to select and transform into a blob for insertion into my database (using an INSERT INTO command). My first problem is getting hold of the PDF using PHP. I know it is done with the file_get_contents() function, but I do not understand what parameters it needs. 回答1: $fp = fopen($fileLocation, 'r'); $content = fread($fp, filesize($fileLocation)); $content = addslashes($content); fclose($fp); You can save the $content to blob field in mysql 来源： https:/

问题 So I need to: upload a text blob as a file using $http or $resource with angular.js - mimicking curl style multipart/form upload. There is a previous post on this problem i'm going to try to be more explicit about the issue with hopes that someone can identify where I may be going astray. Here is an example of the curl command that I know works with this service: curl \ http://c.docverter.com/convert \ -F from=markdown \ -F to=pdf \ -F input_files[]=@<(echo hello) #or @example.md for a file

问题 I want to store images in a database using sql but cant seem to get it to work: qry.SQL.Clear; qry.Sql.Add('update tbl set pic = :blobVal where id = :idVal'); qry.Parameters.ParamByName('idVal')._?:=1; .Parameters has no .asinteger like .Param has but .Param isn't compatible with a TADOquery - to workaround I tried: a_TParameter:=qry.Parameters.CreateParameter('blobval',ftBlob,pdinput,SizeOf(TBlobField),Null); a_TParam.Assign(a_TParameter); a_TParam.asblob:=a_Tblob; qry.ExecSql; This also

问题 Locked . This question and its answers are locked because the question is off-topic but has historical significance. It is not currently accepting new answers or interactions. So I'm using an app that stores images heavily in the DB. What's your outlook on this? I'm more of a type to store the location in the filesystem, than store it directly in the DB. What do you think are the pros/cons? 回答1: I'm in charge of some applications that manage many TB of images. We've found that storing file

问题 I got the BLOB data from the database and use the below code to put it into a string(rs is the ResultSet, file is a Map), is there a way to put this string value back to the BLOB columns? Blob blob = rs.getBlob("FILE_DATA"); if(blob != null) { byte[] bdata = blob.getBytes(1, (int) blob.length()); String data = new String(bdata); file.put("FILE_DATA", data); } I have tried some suggestions like this one, but they don't work well. Blob blbVal = getConnection().createBlob(); byte[] fileData =

问题 I am stuck into a situation where I need to insert data into a blob column by reading a file from the Filesystem in DB2 (DB2 Express C on Windows 7). Somewhere on the internet I found this INSERT INTO ... VALUES ( ..., readfile('filename'), ...); but here readfile is not an inbuilt function but I need to create it using UDF (c language libraries), but that might not be a useful solution. Can somebody update us how to insert BLOB values using Insert command. 回答1: 1) You could use LOAD or

问题 I have successfully inserted details of a student and his image through .jsp program in to sql database. The problem is when I retrieve back the stored information of the student through another .jsp program only image is displaying, no other information of the student. Can any one help me with the codes to retrieve stored blob image and other information and display together? I am using oracle database 11g. It has student table named studdetail. it has five columns, column 1 to column 4 are

问题 I have a google script which accesses a website, finds a .zip file, unzips it, and extracts the relevant data from the relevant files. I want to do the same thing, but for a different, larger .zip file on the same site. I've accessed the .zip (using almost identical code), but it throws an error: "Could not unzip." My code: var dir = UrlFetchApp.fetch(url); var b = dir.getBlob(); var files = Utilities.unzip(b); The only difference between the two files are these: File A ends with "Update%201

问题 i have blob images that are stored in the database I want to download it to my device. the image will be download (as ***.jpg) but it is corrupted . this is my download.php code <?php $servername = "localhost"; $dbusername = "root"; $dbpassword = ""; $dbname = "text_blob1"; $con= new mysqli($servername, $dbusername, $dbpassword, $dbname); $id=$_GET["id"]; $sql = "select * from table1 where id=$id "; // 1 $res = $con->query($sql); while($row = $res->fetch_assoc()) { $name = $row['name']; echo

问题 I have a String which contains a large mail body. I need to save it to the database in the form of blob. How to convert it to the blob in java? Sample String below: <html><center> <body style='background-color: #e5e4e2;'> <table id='mainTable' style='background-color: #ffffff; width: 70%; height: auto;margin-left: auto; margin-right: auto;'><tr> <td> <table style='width: 100%;background-color: #2B547E; height: 50px; margin-top: 30px; margin-left: auto; margin-right: auto;'> <tr> <td width='50