blob

How do I display the full content of LOB column in Oracle SQL*Plus?

由 纵饮孤独 提交于 2019-12-31 13:17:04
问题 When I try to display the contents of a LOB (large object) column in SQL*Plus, it is truncated. How do I display the whole thing? 回答1: SQL> set long 30000 SQL> show long long 30000 回答2: You may also need: SQL> set longchunksize 30000 Otherwise the LOB/CLOB will wrap. 来源： https://stackoverflow.com/questions/122772/how-do-i-display-the-full-content-of-lob-column-in-oracle-sqlplus

mySQL groupconcat returning BLOB xxxB / Kib

由 可紊 提交于 2019-12-31 06:02:10
问题 On advice from a member and a previous post I'm running a query against multiple tables on an interspire shopping cart database that looks like this: SELECT c.customerid, c.custconfirstname, c.custconemail, o.ordstatus, o.orddate, GROUP_CONCAT( 'Order Id: ', orderid, ' | Product name: ', ordprodname, ' | Quantity: ', ordprodqty, '<br>' ) AS ordered_items FROM isc_customers c LEFT OUTER JOIN isc_orders o ON o.ordcustid = c.customerid LEFT OUTER JOIN isc_order_products op ON op.orderorderid = o

How to manage responseType = 'blob' using Angular5 in Front end

由 痞子三分冷 提交于 2019-12-31 05:22:07
问题 I want to download a doc.pdf that have a text 'My first file download' . When I try to download to zip file, my file have some files.xml Like in this photo Can you suggest me how to convert this file in pdf? Please follow my code: Component.ts export(id: string) { this.ss.download(id) .subscribe(data => { console.log(`excel data: ${data}`); FileSaver.saveAs(data, 'doc.zip') }, error => console.log('Error downloading the file.'), () => console.log('Completed file download.')); } service.ts:

Pass parameter to BLOB object URL

由 你。 提交于 2019-12-31 02:19:33
问题 Say I've got a reference to a html file as a Blob b and I create a URL for it, url = URL.createObjectURL(b); . This gives me something that looks like blob:http%3A//example.com/a0440b61-4850-4568-b6d1-329bae4a3276 I then tried opening this in an <iframe> with a GET parameter ?foo=bar , but it didn't work. How can I pass the parameter? var html ='<html><head><title>Foo</title></head><body><script>document.body.textContent = window.location.search<\/script></body></html>', b = new Blob([html],

Safari 12 Won't Download a PDF blob

由 自古美人都是妖i 提交于 2019-12-30 18:08:50
问题 This code is used to download a pdf via blob. It works fine on every browser except Safari 12 for macOS and iOS. Even Safari 11 works. When I run the code the very first time, it works fine, but every time after that it gives me "WebKitBlobResource error 1" function downloadFileFromBlob(fileBlob, fileName) { if (/\bMSIE\b|\bTrident\b/.test($window.navigator.userAgent)) { $window.navigator.msSaveOrOpenBlob(fileBlob, fileName); } else { var fileURL = $window.URL.createObjectURL(fileBlob);

binary data in database, blob vs compressed base64

由 狂风中的少年 提交于 2019-12-30 04:01:24
问题 There is a column type named blob in database, and it is used to store binary data. But more often than not, I see solutions which compress binary data, then convert binary data to base64, and store base64 string as varchar or text in database. Python code example: import zlib, base64 base64_str = base64.b64encode(zlib.compress(binary_data, 9)) So there are two ways to store binary data into database: as blob as compressed base64 My Questions is: Which way is better and why? 回答1: It seems

Should I use redis to store a large number of binary files? [closed]

由 限于喜欢 提交于 2019-12-30 03:45:06
问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 2 years ago . I need to store huge amount of binary files (10 - 20 TB, each file ranging from 512 kb to 100 MB). I need to know if Redis will be efficient for my system. I need following properties in my system: High Availability Failover Sharding I intend to use a cluster of commodity

How to store unlimited characters in Oracle 11g?

由 a 夏天 提交于 2019-12-30 03:04:26
问题 We have a table in Oracle 11g with a varchar2 column. We use a proprietary programming language where this column is defined as string. Maximum we can store 2000 characters (4000 bytes) in this column. Now the requirement is such that the column needs to store more than 2000 characters (in fact unlimited characters). The DBAs don't like BLOB or LONG datatypes for maintenance reasons. The solution that I can think of is to remove this column from the original table and have a separate table

Download large data stream (> 1Gb) using javascript

由 百般思念 提交于 2019-12-30 03:04:05
问题 I was wondering if it was possible to stream data from javascript to the browser's downloads manager . Using webrtc, I stream data (from files > 1Gb) from a browser to the other. On the receiver side, I store into memory all this data (as arraybuffer ... so the data is essentially still chunks), and I would like the user to be able to download it. Problem : Blob objects have a maximum size of about 600 Mb (depending on the browser) so I can't re-create the file from the chunks. Is there a way

Upload images as BLOBs in Oracle using PHP

由 白昼怎懂夜的黑 提交于 2019-12-30 02:19:12
问题 Can anyone please tell me how to store images in an oracle database as BLOBs using PHP? A working example would be nice. Thankyou. 回答1: You first need to get the image that is being uploaded from the $_FILES #global array: $image = file_get_contents($_FILES['image_field_name']['tmp_name']); Then to insert the image in the database try this: $sql = "INSERT INTO table (id, image) VALUES(1, empty_blob()) RETURNING image INTO :image"; $result = oci_parse($connection, $sql); $blob = oci_new
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