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Questions tagged [blob]

A BLOB is a collection of binary data stored as a single entity in a database management system.

A BLOB (binary large object, basic large object, BLOB, or BLOb) is a collection of binary data stored as a single entity in a database management system. Blobs are typically images, audio or other multimedia objects, though sometimes binary executable code is stored as a blob.

Beyond that, the term BLOB has various slightly related usages, see wikipedia for further examples.

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Trying to Create a File from Blob but the Output file has Invalid Size

I am creating a canvas to rotate an image and creating a blob. But I need it as a file to upload it to server. return new Promise((resolve, reject) => { canvas.toBlob(blob => { // returning an error if (!blob) { …
Swarnali Roy
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Azure Blob Storage Java SDK 12 extract file name from blob name

let's say I have blob structure like this: dir0 ├── dir1 │ ├── file11 │ └── file12 ├── dir2 └── dir3 After listing the dir1 that contains two files file11, file12 with listBlobsByHierarchy("dir0/dir1/") method I'm getting two blobs with blobName…
Piotr
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Stop browser blobs from expiring

want to create a react application that users upload images and instantly should be interacting with them. I'm not going to upload them into any server. I just want to use them in the user's browser. For that currently use blobs. I save those blob…
Naveen Avishka
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PHP & MYSQL - what should I do with my image data?

I'm creating a blog with a featured image on each post. I have a dilemma, I'm unsure what to do with my image data... Should I insert image data into my MYSQL database using BLOB? Or should I just create an uploader which makes a directory into the…
Adam
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Downloading image via GET request but obtaining 'application/octet-stream'

I created a GET route in my back-end server which returns an image, depending on the GET query. The route is working OK, and looking in the developer tools I can see the image preview correctly as expected - see below: When I send this request via…
Matheus Felipe
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how to convert BLOB data type to Images in react

hope you are fine. I am stuck at my university group project. I have mysql database in which I have tables which contains images, images in database are stored in BLOB data type. Now I want to convert BLOB into images and display it in my web…
hamza-20
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Fail to share blob video to whatsapp, by navigator.share in ios 15

var blob = new Blob([uint8Array], { type: "video/mp4" }); var $outputVideo = new File([blob], "video.mp4", { type: "video/mp4" }); $(".btn-save-video").click(function(e){ if (navigator.canShare && navigator.canShare({ files:…
HUNG
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Convert column of Hex into Text in R

I am new to R, please have mercy. I imported a table from an Access database via odbc: df <- select(dbReadTable(accdb_path, name ="accdb_table"),"Col_1","Col_2","Col_3") For > typeof(df$Col_3) I get [1] "list" Using library(dplyr.teradata). I…
Sascha
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How to save a file from Supabase Storage using Node.js (converting blob to file)

I am downloading media files (mainly images) from Supabase Storage using from.download() in NodeJS. How can I save the Blob that is returned as a file on my local hard drive?
st_phan
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Can you get full content of a JSON file inside a blob storage into a ADF variable? If so, how?

Inside ADF I'm trying to get the ready-made contents of a query for a GraphQL API (Web activity block) stored in a JSON somewhere in the blob. Because of speed requirements, we can't afford to just spin up Databricks every single time. What can be…
Mateusz Makowski
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Chrome extension: Best way to store files in the browser (non-disk)

In my chrome extension, I would like to store files in the browser (from background script) but not on disk, as I would like to read and erase the files quickly. Is the best solution to use blob URLs? If so, how much data can I store as blob URLs?…
Moe Bazzi
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SVG to Image returning blank image blob

I have an interactive drawing app on my website, and I want to create a button where one could share their drawing on FB. I'm trying to convert the SVG element to a blob, to then pass it to og:image, but I'm having some issues with the conversion. I…
naimelhajj
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URL from File object

Although, I have served quite some years in webdevelopment, I have to admit that I don't really know how (big) file uploads actually work. So I hope this question makes sense after all. In my app I am uploading large video files to an S3 bucket. The…
Flo Ragossnig
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What is the optimal way of setting Blob index tag in Azure Blob storage for large amount of data

I need to add blob index tags to a large amount of data existing in azure blob storage (nearly 40TB). The same should be done to all blobs that will be uploaded in future. For the latter ,I need to create a periodically executing powershell script…
Jerry
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Can't play HTML5 Video with Blob source on iOS devices

I have a React web app that gets the video URL from a server, then requests the video as a blob and tries to play this on an HTML video tag. I'm doing this because the client sometimes has issues with the internet and videos can stutter while…
Lucas Dias
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