I have a sql server database that returns byte for the image. If I use the tableadapter wizard and set it to my stored procedure and preview data, it pulls back an image. It automatically turns it into an image in the preview data. I don't see it as a string of Ints or anything. How can I display it on my asp.net webpage with a gridv...
Hi, I'd like to be able to append some data to a binary field in a MS SQL 2005 server from C# without reading the original data, concatenating it, and then setting it all back. Is this possible? Cheers! Steve ...
I have used sqlite in c++, python and now (perhaps) in C#. In all of these i have no idea how to insert a blob into a table. How do i store and retrieve a blob in sqlite? ...
I have large blobs in an SQLite app, and need to update small segments of these blobs in a piecewise fashion. Something like saying "update bytes X through Y of blob B with data D", this can be done in other databases with Blob manipulating functions, but I can't find anything like this for SQLite, am I stuck? Or does SQLite have ways of...
Hi all. I'm trying to retrieve a BLOB field from Oracle and show it in a crystal report. While viewing the report, I've that error: Failed to open a rowset. Details: ADO Error Code: 0x Source: Microsoft OLE DB Provider for oracle Description: Unspecified error I use a View as report datasource, its script SELECT COMPANY_ID, COMPANY_...
I have binary std::string and I need insert it into the BLOB (MySQL) using simple data layer I have. So, I need to execute query: ExecuteSQL((LPTSTR)strQ). When I am creating this query string (strQ) I cannot add anything to the string after I add this binary string - it just kind if terminated and nothing can be aded. I do not want to u...
can somebody give me an example how to insert binary std::string using ODBC and C++ into BLOB column, please? EDIT: Duplicate of How to INSERT binary std::string into BLOB (MySQL). ...
I am trying to decide between two possible implementations and am eager to choose the best one :) I need to add an optional BLOB field to a table which currently only has 3 simple fields. It is predicted that the new field will be used in fewer than 10%, maybe even less than 5% of cases so it will be null for most rows - in fact most of...
I have a model which *I want* to contain an image blob. I have the images on my local filesystem, but due to the nature of my application, I need to get them in the datastore. Here's my model: class JeanImage(db.Model): type = db.StringProperty(required=True, choices=set(["main","front","back","detail"])) image = db.BlobProper...
In the context of a web application, my old boss always said put a reference to an image in the database, not the image itself. I tend to agree that storing an url vs. the image itself in the DB is a good idea, but where I work now, we store a lot of images in the database. The only reason I can think of is perhaps it's more secure? You...
How can I get image data string from mysql db that has blob images? Thanks. ...
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 exp...
I want to take a file from disk and upload it into an Oracle BLOB field, using VB6. How can I do that? ...
When I search the web for inserting BLOBs into Oracle database with jdbc thin driver, most of the webpages suggest a 3-step approach: insert empty_blob() value. select the row with for update. insert the real value. This works fine for me, here is an example: Connection oracleConnection = ... byte[] testArray = ... PreparedStateme...
I'm implementing a website where images are stored in a database. These are two tutorials that I've come across with two different ways of storing and retrieving image data. Which one would you recommend, and why? http://www.developertutorials.com/tutorials/php/storing-images-database-050620/page1.html http://www.onlamp.com/pub/a/on...
I built a webpage where users can submit a PDF which is then inserted into a MySQL database in a mediumblob for retrieval later. This all works fine, except when the PDF contains images or embedded fonts, in which case the images are corrupted and any text using the font disappears (Acrobat display a message about the missing font). I'...
I am currently trying to use the CloudDrive (Powershell) sample that comes with the Azure SDK to list the blobs I have stored. I'm getting an error fairly early in the process, and I figure there must be something I'm doing wrong - I just don't know how to debug this kind of problem... I have followed a great tutorial regarding logging,...
For a while I've been working on inserting the data from a bloated Excel workbook into a SQL database. My team has suggested keeping a backup of the .xls, and they are wondering if it might be a good idea to put the Excel workbook actually inside the database so that all the relevant data from our project was together. I know some datab...
How is a blob column annotated in Hibernate? So far I have a class that has: @Column( name = "FILEIMAGE" ) private byte[ ] fileimage ; // public byte[ ] getFileimage ( ) { return this.fileimage ; } public void setFilename ( String filename ) { this.filename = filename ; } ...
How can I insert huge BLOBs into a MySQL database (InnoDB)? Fields of type LONGBLOB support data sizes of up to 4 GB according to the MySQL manual. But how does data of such a huge size get into the database? I tried to use INSERT INTO table (bindata) VALUES ( LOAD_FILE('c:/tmp/hugefile') ); which fails if the size of hugefile is bi...