Questions tagged [blob]
A BLOB is a collection of binary data stored as a single entity in a database management system.
7,817
questions
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5
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Detecting File Compression
I have to read some data stored by a third party application in an Acess 2000 database. The vendor is no longer around to ask questions.
One table contains image data that appears to be compressed - ...
0
votes
2
answers
836
views
storing multiple values as binary in one field
I have a project where I need to store a large number of values.
The data is a dataset holding 1024 2Byte Unsigned integer values. Now I store one value at one row together with a timestamp and a unik ...
0
votes
2
answers
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Inserting raw (binary?) image data into mysql? (PHP)
I've got a raw/(binary?) image like this:
ÿØÿà�JFIF��–�–�*!!!$'$ &(goes on forever);
when i try to insert this into mysql it doesn't work, the column type is set to longblob, any ideas?
0
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1
answer
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Crystal reports - PUSH blob data, image doesn't display
I've a crystal report that I'm trying to get a dynamic image displayed. This is the CRBasic 2008 version that comes with VS 2008, so i can't use the method where we link out to the file, it has to ...
-4
votes
1
answer
435
views
Is it possible to serialize and deserialize a void pointer to & from a blob in a database?
I would like to store a void pointer in a blob for a record in a table. Is this possible, and if so, how do I do it?
I'm using VC++.
0
votes
2
answers
730
views
Reading a Java BLOB object stored a database using .NET
I have an xml file which is stored in an "image" column in an MSSQL database. This field is being set by a java program i do not have access to. I have been told its just a standard Java "blob" ...
0
votes
3
answers
2k
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Using a handler to render an image from a blob on an ASP.NET page. I can't get it
I'm working on a simple image tagging and searching app.
I've got my images uploading to the DB, the tags being applied, but am failing when I pull them back - the images don't render.
I found this ...
27
votes
12
answers
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Saving images: files or blobs?
When you save your images (supose you have lots of them) do you store then as blobs in your Database, or as files? Why?
Duplicate of: Storing Images in DB - Yea or Nay?
2
votes
1
answer
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Problem with updating blob, if blob contains specific data
I have binary data that needs to be stored in a BLOB field in a SQL-database.
In case of an UPDATE (storing into the database), the binary data comes as a string (BDS2006, no unicode).
When the BLOB ...
2
votes
3
answers
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BLOB data to simple string in DataGridView?
I am using C# & MYSQL to develop a desktop application.
In one of my form I have a DataGridView (dgvBookings) and in my database table I have a table tblBookings which contains a field ...
17
votes
6
answers
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Git - get all commits and blobs they created
Is there a git command that can output for every commit:
id
subject
blobs it created with they path and size (like git ls-tree -l -r <commit> but only for created blobs)
7
votes
3
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Load blob image data into QPixmap
I am writing a program using PyQt4 for front-end GUI and this program accesses a back-end database (which can be either MySQL or SQLite). I need to store some image data in the database and below is ...
16
votes
2
answers
28k
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How to insert / retrieve a file stored as a BLOB in a MySQL db using python
I want to write a python script that populates a database with some information. One of the columns in my table is a BLOB that I would like to save a file to for each entry.
How can I read the file (...
6
votes
1
answer
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Copy blob data from one table to another on MySQL
I need to copy a set of data from one table to another that includes a BLOB column. I'm using an INSERT query with a subquery SELECT:
INSERT INTO dest_table(field1, field2, field3, blobfield, field4) ...
2
votes
2
answers
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Error creating spatial index on MySql BLOB column
I am trying to add a spatial index to a table column named Location of type BLOB. If I try this:
ALTER TABLE route ADD SPATIAL INDEX(Location);
I get:
Error: BLOB/TEXT column 'Location'
used ...