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How to persist LARGE BLOBs (>100MB) in Oracle using Hibernate

由 邮差的信 提交于 2019-11-27 00:52:59
问题 I'm struggling to find a way to insert LARGE images (>100MB, mostly TIFF format) in my Oracle database, using BLOB columns. I've searched thoroughly across the web and even in StackOverflow, without being able to find an answer to this problem. First of all, the problem...then a short section on the relevant code (java classes/configuration), finally a third section where i show the junit test i've written to test image persistence (i receive the error during my junit test execution) Edit: i

insert a BLOB via a sql script?

由 南笙酒味 提交于 2019-11-27 00:28:18
问题 I have an H2 database (http://www.h2database.com) and I'd like to insert a file into a BLOB field via a plain simple sql script (to populate a test database for instance). I know how to do that via the code but I cannot find how to do the sql script itself. I tried to pass the path , i.e. INSERT INTO mytable (id,name,file) VALUES(1,'file.xml',/my/local/path/file.xml); but this fails. Within the code (java for instance), it's easy to create a File object and pass that in, but directly from a

Exporting Blob from MySQL database to file with only SQL

由 北战南征 提交于 2019-11-27 00:22:45
问题 I have a table with image data stored in a blob field in a MySQL database. Is there a way to export those images to files on the filesystem by using only SQL? The images should be named {imageId}.jpg I know that it is easy to do this with Java or whatever but is it possible with just a SQL script? 回答1: I don't like the idea ... drop procedure if exists dump_image; delimiter // create procedure dump_image() begin declare this_id int; declare cur1 cursor for select imageId from image; open cur1

How do I get textual contents from BLOB in Oracle SQL

由 百般思念 提交于 2019-11-26 23:57:28
I am trying to see from an SQL console what is inside an Oracle BLOB. I know it contains a somewhat large body of text and I want to just see the text, but the following query only indicates that there is a BLOB in that field: select BLOB_FIELD from TABLE_WITH_BLOB where ID = '<row id>'; the result I'm getting is not quite what I expected: BLOB_FIELD ----------------------- oracle.sql.BLOB@1c4ada9 So what kind of magic incantations can I do to turn the BLOB into it's textual representation? PS: I am just trying to look at the content of the BLOB from an SQL console (Eclipse Data Tools), not

java.lang.AbstractMethodError: com.mysql.jdbc.PreparedStatement.setBlob(ILjava/io/InputStream;)V [duplicate]

由 偶尔善良 提交于 2019-11-26 23:39:15
问题 This question already has answers here : Why do I get java.lang.AbstractMethodError when trying to load a blob in the db? (14 answers) Closed 3 years ago . I am trying to save an uploaded file in MySQL database as follows: String firstName = request.getParameter("firstName"); String lastName = request.getParameter("lastName"); InputStream inputStream = null; // input stream of the upload file // obtains the upload file part in this multipart request Part filePart = request.getPart("photo");

PHP is truncating MSSQL Blob data (4096b), even after setting INI values. Am I missing one?

由 雨燕双飞 提交于 2019-11-26 23:31:16
问题 I am writing a PHP script that goes through a table and extracts the varbinary(max) blob data from each record into an external file. The code is working perfectly (I used virtually the same code to go through some images) except when a file is over 4096b - the data is truncated at exactly 4096. I've modified the values for mssql.textlimit , mssql.textsize , and odbc.defaultlrl without any success. Am I missing something here? <?php ini_set("mssql.textlimit" , "2147483647"); ini_set("mssql

How To Update A BLOB In SQL SERVER Using TSQL

由 喜夏-厌秋 提交于 2019-11-26 23:28:27
问题 How do I update a BLOB field only using TSQL (for example from SSMS and not using any code such as ADO.Net or Linq)? 回答1: There are two ways to SELECT a BLOB with TSQL: SELECT * FROM OPENROWSET (BULK 'C:\Test\Test1.pdf', SINGLE_BLOB) a As well as: SELECT BulkColumn FROM OPENROWSET (BULK 'C:\Test\Test1.pdf', SINGLE_BLOB) a Note the correlation name after the FROM clause, which is mandatory. The second version can be used for a UPDATE as in the following example: UPDATE MyTable SET blobField =

Snippet to create a file from the contents of a blob in Java

由 本秂侑毒 提交于 2019-11-26 22:54:59
问题 I have some files stored in a database blob column in Oracle 9. I would like to have those files stored in the file system. This should be pretty easy, but I don't find the right snipped. How can I do this in java? PreparedStatement ptmst = ... ResutlSet rs = pstmt.executeQuery(); rs.getBlob(); // mistery FileOutputStream out = new FileOutputStream(); out.write(); // etc et c I know it should be something like that... what I don't know is what is commented as mistery Thanks EDIT I finally got

Blob constructor browser compatibility

由 拟墨画扇 提交于 2019-11-26 22:41:44
问题 I am developping an application where I recieve image data stored in a uint8Array. I then transform this data to a Blob and then build the image url. Simplified code to get data from server: var array; var req = new XMLHttpRequest(); var url = "img/" + uuid + "_" +segmentNumber+".jpg"; req.open("GET", url, true); req.responseType = "arraybuffer"; req.onload = function(oEvent) { var data = req.response; array = new Int8Array(data); }; Constructor: out = new Blob([data], {type : datatype} );

How to create an ArrayBuffer and data URI from Blob and File objects without FileReader?

由 我是研究僧i 提交于 2019-11-26 22:01:30
问题 This Question is related to and inspired by How to updoad in old browsers (ex Safari 5.1.4) Given an <input type="file"> element having a files property containing File objects which inherit from Blob , is it possible to create a ArrayBuffer and convert the ArrayBuffer to a data URI from a Blob or File object without using FileReader ? Approaches have tried so far have been create a mock WebSocket with .binaryType set to "arraybuffer" , create a MessageEvent with event.data set to File object
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