Binary Large OBject, datatype

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638 views

RBS and Fail Over Cluster with SQL Server 2012

I am trying to install one SQL Server 2012 cluster with two nodes. I will also be enabling Remote Blob Storage (RBS) on server so I was wondering if I need to take something in account while ...
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0answers
43 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 ...
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1answer
250 views

Where is my blob stored?

Using oracle 11, Although a lot was already written about blobs, there is something that is not still clear for me. I was told that by default blobs stored in row if the are < 3900. Does it ...
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1answer
3k views

How to determine Oracle LOB storage footprint?

With SECUREFILE storage I can specify whether I want compression (and the level of it) and deduplication, and it's all a trade-off between time and space. Timing is fairly easy to profile but what's ...
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1answer
626 views

Column of generic/variable type?

In SQL, I would like to create a table which can contain generic data types. This types can change from every row. The solution I could come up to is: CREATE TABLE TagValue ( tag VARCHAR(64), ...
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1answer
557 views

BLOBs storage in a dedicated table

I have a database that has several BLOB columns scattered across multiple tables. Since I am a developer and am looking at making application code writing easier, I wanted to turn these columns into ...
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1answer
863 views

import csv data stored in a blob column

Here's what i need to do: Users will upload CSV files into SQL Server 2012 blob column Each night, i would like to take each file and import the data into table I will have 2 web sites using the ...
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1answer
205 views

Oracle BLOB store performance

LOBs in Oracle are stored in-row when they are less than 4K in size and out-of-row otherwise. I'm wondering how do SECUREFILE storage options COMPRESS and ENABLE STORAGE IN ROW work? I have a lot of ...
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1answer
452 views

Can I use mysql to serve 100's of millions of small image files?

I need to serve 300,000,000 small image files totaling 1.5TB. Trying to unpack these files to individual files on the file system is next to impossible (1 MByte/sec throughput rates to create the ...
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1answer
666 views

Possible reasons for slow BLOB updates in Oracle?

We have an application that transfers .bmp images as BLOBs to an Oracle table. One of the users of the app has complained that it is taking 2-3 seconds to transfer each image. Each image is ~1.2Mb. ...
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1answer
3k views

Selecting with varbinary(max) criteria (in the where clause)

Basic info Database: SQL Server Express 2008 R2 Client: SQL Server Management Studio Backround (skip if not interested): A project I'm maintaining uses an ORM, which apparently stored my enum ...
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1answer
523 views

Which Database to choose: MySQL or Oracle

I have an application generating time series data (32 channels, 22KHz, 6 secs) once a minute. These have to be stored in a database. At the moment I'm using MySQL with InnoDB tables ...
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1answer
2k views

Java application unable to access Blob stream in Oracle after upgrade to 11g

This issue below might be an application problem, but I cannot seem to rule out a poor database setup, I was hoping to get some insights into potential database issues. I am maintaining a legacy Java ...
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1answer
1k views

Length of LOB data (%1) to be replicated exceeds configured maximum %2

We recently hit this error shortly after enabling replication on a table. Length of LOB data (%1) to be replicated exceeds configured maximum %2 I've found solutions to this problem already: ...
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0answers
759 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; ...
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1answer
6k views

Export table without BLOB column

I have a big table with BLOB objects and some references from other tables to this one. I prepare dev and test schema for my app by making expdp (data pump) from production, then anonymizing data on ...
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1answer
516 views

What is the underlying representation of BLOB data when I export it?

When I export a blob object to an SQL file, I get some thing like this for a blob field: 0x4f3a383a227374644....., Questions I would like to know how the BLOB is actually converted to the above ...
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1answer
2k views

How to copy bytea from Postgres to Oracle

I have a db on Postgres 9.1. The db collected some binary data that are stored in bytea file. I need to copy the data to Oracle 10g. How to do it? The details I have a table plines in Postgres9.1. ...
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1answer
896 views

Data type for protobuf objects in mysql

I would like to store some protobuf objects in a MySQL database. The objects are created in a Java application. The object is accompanied with a textual type identifier and a timestamp. ...
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11answers
25k views

Files - in the database or not?

What is the best place for storing binary files that are related to data in your database? Should you: Store in the database with a blob Store on the filesystem with a link in the database Store in ...
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5answers
55k views

How to insert (file) data into a PostgreSQL bytea column?

This question is not about bytea v. oid v. blobs v. large objects, etc. I have a table containing a primary key integer field and a bytea field. I'd like to enter data into the bytea field. This ...