I am trying to upload images from Acumatica to a third party website and it requires the image data to be in base-64 format.
What format does Acumatica store images in on the database?
The images and all attachments are stored in raw binary format. The files are stored in the Data field, of type varbinary(max), which is in the UploadFileRevision table.
Base 64 is not a file format, but rather a way to encode binary data in a string format. More information on Base 64 as well as a sample implementation in Java (should work almost unmodified in C#) is available at https://en.wikipedia.org/wiki/Base64
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I have an image stored in database, with BLOB as datatype but it shows
this content.
Its also base64 encoded. How to decode this in Java? I have tries several things. but no luck.
Hadoop - The Definitive Guide says
If you want to log binary types, plain text isn’t a suitable format.
My Questions is 1. Why not? 2. What are binary types?
and further:
Hadoop’s SequenceFileclass fits the bill in this situation, providing
a persistent data structure for binary key-value pairs. To use it as a
logfile format, you would choose a key, such as timestamp represented
by a LongWritable, and the value is a Writable that represents the
quantity being logged.
Why text file can't be used and sequence file is required?
On the same page, it was quoted that:
For some applications, you need a specialized data structure to hold your data. For doing
MapReduce-based processing, putting each blob of binary data into its own file doesn’t
scale, so Hadoop developed a number of higher-level containers for these situations.
e.g. Assume that you are uploading images in facebook and you have to remove duplicate images. You can't store image in textformat. What you can do : get MD5SUM of image file and if MD5SUM already exists in the system, just discard insertion of duplicate image. In your text file, you can simply have "Date:" and "Number of images uploaded". Image can be stored out side of HDFS system like CDN network or at some other web server
My data is in the format of csv file (sam,1,34,there,hello). I want to add an image to each row in the csv file using hadoop. Does any body have any idea about it. I have seen about Hipi which process the image files and adds it also. But I want to add as a column to csv file.
If you have to use CSV file, consider using Base64 encoding over binary image data - it will give you a printable string. But in general I would recommend you to switch to sequence file, there you would be able to store the image directly in a binary format
I'm working with a database-driven application that allows users to upload images which are then zipped and embedded into a database in a varbinary(max) format. I am now trying to get that image to display within an SSRS report (using BI 2005).
How can I convert the file data (which is 65,438 characters long when zipped and 65,535 characters when not zipped) into a normal varbinary format that I can then display in SSRS?
Many thanks in advance!
You'll have to embed a reference to a dll in your project and use a function to decompress the data within SSRS, see for example SharpZipLib. Consider storing the data uncompressed if possible, as the CPU / space trade off is unlikely to be in your favour here, as impage data is likely to have a poor compression ratio (it is usually already compressed).
This is not a question of a code, I need to extract some BLOB data from an Oracle database using python script. My question is what are the steps in dealing with BLOB data and how to read as images, videos and text? Since I have no access to the database itself, is it possible to know the type of BLOBs stored if it is pictures, videos or texts? Do I need encoding or decoding in order to tranfer these BLOBs into .jpg, .avi or .txt files ? These are very basic questions but I am new to programming so need some help to find a starting point :)
If you have a pure BLOB in the database, as opposed to, say, an ORDImage that happens to be stored in a BLOB under the covers, the BLOB itself has no idea what sort of binary data it contains. Normally, when the table was designed, a column would be added that would store the data type and/or the file name.