Binary Large OBject, datatype

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2
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2answers
162 views

Compress files and directories into zip file and put it into blob field

What is the best way to do the following using SQL Server? Compress all the files, folders and subfolders from a specific location (specified in a parameter in a stored procedure) - the server side ...
2
votes
1answer
74 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 ...
1
vote
1answer
126 views

How to determine when REORG with LONGLOBDATA is required (DB2)

REORGCHK only identifies when a reorg is required for space reclamation on normal (non-LOB) data. Is there a way of determining how many pages are wasted due to LONG and LOB data that has been ...
1
vote
1answer
175 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 ...
0
votes
1answer
49 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 ...
0
votes
1answer
315 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 ...
2
votes
0answers
224 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
553 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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0answers
35 views

MySQL blob removes last bites when selecting in some strings

When I retrieve blob it get cut from the end a little. Most strings are ok, but some got cropped for several last charecters. echo $data, '<br />'; db_execute("UPDATE table SET blobcolumn = ...
0
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0answers
163 views

Importing OLE Object from Access to SQL Server

I am trying to import a table from MS Access to MS SQL Server which contains a BLOB field which contains a .zip file. The zip file has two images. This field is null sometimes. I am using the Import ...
0
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0answers
34 views

How to select full text in the blob type?

There's some large text segments stored in database table BLOB column, and when I query that column against database , usually only part of that large texts get displayed. I am not sure whether this ...
0
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0answers
903 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: ...
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0answers
33 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 ...