Talk:Binary large object

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Oracle's definition

What is Oracle's definition of this terminology? BTW, what does Wikipedia do about different established authors naming different things by different names?

In school, I read about Normal Groups, which meant slightly different things to different audiences. In CS parlance, this is called an overloaded expression, whose meaning is clear only by context!

tinyblob

what's a tinyblob datatype? --Abdull 8 July 2005 19:09 (UTC)

TINYBLOB: A binary large object column with a maximum length of 255 (2^8 - 1) bytes. Each TINYBLOB value is stored using a one-byte length prefix that indicates the number of bytes in the value. BLOB: A binary large object column with a maximum length of 65535 (2^16 - 1) bytes, or 64KB in storage. "TINYBLOB, BLOB, MEDIUMBLOB, and LONGBLOB in MySQL". Sky News. Retrieved 2021-04-30. --Integer123 (talk) 19:31, 1 May 2021 (UTC)[reply]

BLOB

'Short for binary large object, a collection of binary data stored as a single entity in DBMS. BLOBs are used primarily to hold multimedia objects such as images, videos, and sound, though they can also be used to store programs or even fragments of code. Not all DBMSs support BLOBs.'

A BLOB (binary large object) is a varying-length binary string that can be up to 2,147,483,647 characters long. Like other binary types, BLOB strings are not associated with a code page. In addition, BLOB strings do not hold character data.

The length is given in bytes for BLOB unless one of the suffixes K, M, or G is given, relating to the multiples of 1024, 1024*1024, 1024*1024*1024 respectively.

Note: Length is specified in bytes for BLOB.

Syntax

{ BLOB | BINARY LARGE OBJECT } [ ( length [{K |M |G }] ) ]

Default A BLOB without a specified length is defaulted to two gigabytes (2,147,483,647).

Corresponding compile-time Java type java.sql.Blob

JDBC metadata type (java.sql.Types) BLOB

Use the getBlob method on the java.sql.ResultSet to retrieve a BLOB handle to the underlying data.

Related information

create table pictures(name varchar(32) not null primary key, pic blob(16M));

--find all logotype pictures

select length(pic), name from pictures where name like '%logo%';

--find all image doubles

select a.name as double_one, b.name as double_two from pictures as a, pictures as b where a.name < b.name and a.pic = b.pic order by 1,2;

59.93.8.69 07:28, 4 February 2007 (UTC)MALU KERALA[reply]

move

hi please move this article to Binary large object, same Character large object or inverse! thanks

moved, ] (talk) 10:54, 1 December 2010 (UTC)[reply]

Database only?

Are you sure this refers only to data stored in databases? For instance, people refer to proprietary, binary data in the Linux kernel as blobs as well, and a version control system (or a codebase) is hardly a database. I think the more general idea behind the term is having large chunks of binary data in a place where you normally have structured data. Agree/disagree? --92.74.229.228 (talk) 18:36, 29 May 2015 (UTC)[reply]

External links modified

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Capitalisation of "binary large object"

Why "Binary Large OBject"? Shouldn't it just be "binary large object" (all lower case)?

--Mortense (talk) 21:55, 16 January 2021 (UTC)[reply]

It's to emphasize the acronym (BLOB). --Integer123 (talk) 19:32, 1 May 2021 (UTC)[reply]

That goes against MOS:CAPS#Expanded forms of abbreviations Nixinova T C 07:44, 20 August 2021 (UTC)[reply]

Is "binary blob" really common?

I've personally never seen or heard anyone refer to binaries as "binary blobs". The claim seems to be rather unverifiable. 2A02:A44A:5C96:1:318A:54FF:8A25:6853 (talk) 13:39, 21 May 2022 (UTC)[reply]

Vandalism

I'm not a normal editor, so I'm just hoping someone will see this--can someone who's used to editing address the vandalism re: David Ecklund? 2603:3018:DA3:F900:B584:ADCC:A78A:D5CB (talk) 20:30, 15 November 2023 (UTC)[reply]

Removed. Thank you for pointing it out. Squeakachu (talk) 20:46, 15 November 2023 (UTC)[reply]