Binary Large OBject, datatype

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4
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1answer
407 views

MS SQL high tempdb disk I/O during merge replication of BLOBs

Having a merge publication for replicating BLOBs (sql type - image), got very high tempdb disk I/O for my size of data. Publication is download-only and has no filters. High disk I/O is caused by ...
3
votes
1answer
344 views

MySQL - Where can I find metrics on the performance of Blob vs file system?

I know and understand that there are performance hits in storing blob data in the database, but the blob portion of the data is going to be rarely retrieved/viewed, it is for smaller data (the vast ...
2
votes
1answer
67 views

Does SQLBackup2Azure delete the blobs as well?

I am not sure if this questions belongs here or in server fault, apologies if it belongs there. I am using MS SQL 2012 on an azure VM, and am planning on utilizing the SQLbackup2Azure tool to store ...
0
votes
1answer
89 views

Performance of MySQL BLOB fields processing

Suppose, I have large (about 1 GB) strings in ASCII encoding. I have to choose whether to store them as separate blob fields or split each one of them into smaller pieces and then store them as ...
2
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0answers
343 views

Empty Space in buffer pool

I was doing some reading and came across this article from Paul Randal: http://www.sqlskills.com/blogs/paul/performance-issues-from-wasted-buffer-pool-memory/ Using the queries from that article, I ...
1
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0answers
90 views

Is it possible to resize a blob image?

I've got a table with an image blob field in it, which stores jpg files. As those jpg files are shown in a web page, I would like to resize them in order to spend less bandwidth when my web page call ...
1
vote
0answers
319 views

How to export a MySQLtable with a longBLOB column to an Oracle database?

In MySQL I have a table: Select * from Dummy; Columns like below: id name salary binary_col 1 a 100 A.pdf 2 b 200 b.pdf 3 c 300 c.pdf 4 d 400 d.pdf 5 e 500 e.pdf ...
1
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0answers
2k views

Storing files in Mongo's GridFS vs File System

I read the question here: http://programmers.stackexchange.com/questions/150669/is-it-a-bad-practice-to-store-large-files-10-mb-in-a-database and this paper: ...
1
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0answers
774 views

How can one reliably update a LOB column with data from another LOB column in Oracle?

I have tried: UPDATE "SCHEMA".TABLE SET LOB_COLUMN = (SELECT LOB_COLUMN FROM "SCHEMA".TABLE) I have tried: CREATE OR REPLACE PROCEDURE COPY_LOB_DATA IS OLD_BLOB BLOB; NEW_BLOB BLOB; ...
0
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0answers
20 views

Move large text field to filestream without having to rewrite all codes MSSQL

My MS SQL Express Database keeps hitting the 10G limit. In a few months, we will migrate to Azure DB. In the mean time, to avoid problems, I'm thinking moving a huge text field (storing long html ...
0
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0answers
20 views

Backup options for database with large objects

I have a database that includes a table with references (as oids) to large objects that have been stored in the database via the JDBC Large Object manager. I need to make regular backups of the ...
0
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0answers
34 views

Firebird Cross Platform Blob Charset Issues

I developed a cross platform (win, mac, linux) application with Free Pascal Lazarus 1.4.4 and Firebird 2.5.1. To do this I compiled the application on the different platforms. For the database, ...
0
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0answers
656 views

Insert string content into a blob in DB2 database using a simple SQL query

I am having trouble inserting in a BLOB field some text content (in fact it's an XML, I know there are field-types more suited than BLOB for this type of content, but I simply can't change it). I ...
0
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0answers
82 views

RTF blob - what am I missing?

I'm working on an extension to a legacy database application. Specifically, I need to be able to add entries to a notes system. Using SSMS, I can see that existing notes are stored in a table that ...
0
votes
0answers
1k views

Blob datatype issue with log file

I am getting continuously below error message in mysqld.log [ERROR] InnoDB: The total blob data length (10152274) is greater than 10% of the redo log file size (3072). Please increase ...
0
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0answers
44 views

Reliability of blobs in MySQL

I'm in the process of migrating an application working with Oracle to MySQL. That application stores data in the form of blobs, which can be pretty big. The Oracle production database is 60 Gb large ...