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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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Informix (C#): How do I properly set/unset a blob field?

IBM Informix SDK: Statement: Update mytable set myblobcolumn = ? where myid = 1; using (IfxConnection conn = GetIfxConnection()) using (IfxCommand cmd = new IfxCommand(updateSql, conn)) { var param = new IfxParameter("myblobcolumn",…
myermian
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Issue while printing pdf files from Blob angular

I have an Api that returns the data in the format of { fileName: string, blob: Blob }[] I want to print all these files, so I am using _files.forEach((_fileInfo) => { const blobUrl = URL.createObjectURL(_fileInfo.blob); const oWindow =…
Sunil Garg
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export to excel from a byte [] in angular

I have the response json from the backend (spring boot): private byte[] archivoExcel; private String extension; private String mime; What I need in angular is to get this byte [] and export it to excel, for this my answer json in angular is: export…
jpcruz
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How to GET data from Azure Blob Storage (V2) into Angular 7?

I have a csv file (Blob type: Block blob) in my Storage Blob container (v2). I am wondering how can I be able to fetch the file into my Angular app? Currently I tried to download the csv, move it into assets folder and fetch from there using…
OreoFanatics
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PHP select longblob memory issue

I'm trying to select data from a mysql LONGBLOB field, but the memory usage seems to grow out of control. I've tried with PDO and mysqli. (no problem inserting the data)
oblong
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SSIS: How can you enumerate through files in Azure Storage and load each file into SQL Server

I would like to do something that seems straightforward, but I am not having much joy. I want to build an SSIS Package using the For Each Loop container configured for the Foreach Azure Blob enumerator to loop through the files in my storage…
ravetroll
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How can I output a docx from docxtemplater.js for input in jszip

Using the examples from jszip and docxtemplater I am trying to add multiple docx-Documents to a zip archive and I am failing. My archive only contains docx-files with 0 Bytes that are not readable. I think I don't understand how I can add the…
timm
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How can I merge two blob audio and video and get one single video blob object

I had use but it always return video without audio var newBlob = new Blob([video_blob, audio_blob], "video/mp4");
Bahadur Singh Deol
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Downloading from object URL always fails the first time in Firefox

When opening an object URL in Firefox the file's content is correctly displayed (in the PDF viewer), but "Save page as..." cannot download the blob. The download list in Firefox lists the file as "failed". Clicking on "retry" is successful. The same…
kossmoboleat
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dot detection on the washer with opencv

I am using opencv blob detection function to detect black dots but it cause slow speed and high cpu consumption. Is there more effective way to detect those black dots ? and Blob detection sometimes not detecting some black dots This is my example…
Ahmet Manyasli
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How to download a video from a website which requires authentication

I want to download recorded lecture videos from my college website which requires authentication. I tried a few ways mentioned below and all failed. Used IDM and got an error saying that IDM can't download this protected stream. Used HLS chrome…
Jim Moriarty
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Logic apps: List blobs pagination limit

I'm trying to list all the blobs in my container. There are more than 250,000 blobs in the container. Is it possible to list all those blobs inside the logic app ? I was able to get 100,000 using the pagination threshold in one but with the other…
Rahul Shokeen
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How to POST a blob audio to Python Server using AJAX and jQuery?

I'm working on an audio web application that records the user's voice and then post as a .wav/.mp3 file to the server. I have some code to POST my audio blob in my .js file but I'm not sure if it is correct. I'm also not sure how to receive the blob…
Coder123
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How to open a pdf file in browser instead of downloading it?

I have an api which provides a json-object with a link to the pdf { pdf_link: 'http://localhost:3000/logs.pdf' } When user clicks on the file name, I want to open this pdf in a separate browser tab. I tried giving the url as href in an a tag
troglodyte07
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In PHP, how I show various images from a BLOB field in the database with the HTML content?

I stored it images in the database using an BLOB field (I'm using SQLite). Now I want to recover this image to a HTML page and show the images there. I can retrieve the binary data from the image from the database, but what I can do to transform…
Renato Dinhani
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