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10 Newer Entries Showing entries 61 to 70 of 1423 10 Older Entries

Displaying posts with tag: Oracle (reset)

Webinar-on-demand: Set up & operate real-time data loading into Hadoop
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Getting data into Hadoop is not difficult, but it is complex if you want to load 'live' or semi-live data into your Hadoop cluster from your Oracle and MySQL databases. There are plenty of solutions available, from manually dumping and loading to the good and bad sides of using a tool like Sqoop. Neither are easy and both prone to the problems of lag between the moment you perform the dump and

Saving and restoring Edit sessions in MySQL for Excel
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Since the first release you were allowed to open a session to directly edit data from a table at Excel on a worksheet and see those changes reflected immediately on the database. You were also capable of opening multiple sessions to different tables at the same time (when they belong to the same schema). The problem was that if for any reason you were forced to close Excel or the Workbook, you had no way to reopen those sessions and continue where you left off.

Today we are going to talk about another feature included since MySQL for Excel 1.2.0 which allows you  to save and restore edit sessions. Remember this product and many …

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Continuent Tungsten 2.0.2 Release Notification
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We are pleased to inform you that the new Continuent Tungsten 2.0.2 is now available. Continuent Tungsten keeps data available to applications 7x24 through hardware failures, maintenance, and software upgrades. It ensures business continuity and performance by keeping up-to-date data closer to the user, and increases application throughput and improves response time by load balancing SQL

Real-Time Data Movement: The Key to Enabling Live Analytics With Hadoop
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An article about moving data into Hadoop in real-time has just been published over at DBTA, written by me and my CEO Robert Hodges.

In the article I talk about one of the major issues for all people deploying databases in the modern heterogenous world – how do we move and migrate data effectively between entirely different database systems in a way that is efficient and usable. How do you get the data you need to the database you need it in. If your source is a transactional database, how does that data get moved into Hadoop in a way that makes the data usable to be queried by Hive, Impala or HBase? …

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MySQL Enterprise Backup Improved Compression Algorithm for 3.10
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Background:

Prior to version 3.10, MySQL Enterprise Backup (MEB) used zlib compression for in-memory compression of datafiles. The compression worked by splitting the innodb datafiles into fixed size blocks and compressing each block independently.After searching on the web we found there are many compression algorithms available which can be used for compression. This triggered the idea of testing the performance of available compression algorithms. If the benchmark shows improved performance we can make backup and/or restore faster by adding the new compression algorithm to MEB.

Implementation :

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Cross your Fingers for Tech14, see you at OSCON
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So I’ve submitted my talks for the Tech14 UK Oracle User Group conference which is in Liverpool this year. I’m not going to give away the topics, but you can imagine they are going to be about data translation and movement and how to get your various databases talking together.

I can also say, after having seen other submissions for talks this year (as I’m helping to judge), that the conference is shaping up to be very interesting. There’s a good spread of …

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New Tungsten Replicator 2.2.1 now available
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New Continuent Tungsten Replicator 2.2.1 is now available for download at www.continuent.com/software and https://code.google.com/p/tungsten-replicator/wiki/Downloads?tm=2.Tungsten Replicator is a high performance, open source, data replication engine for MySQL and Oracle, released under a GPL V2 license. Tungsten Replicator has all the features you expect from enterprise-class data replication

Oracle 12c VARCHAR2?
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The Oracle Database 12c documentation says you can set the maximum size of a VARCHAR2 to 32,767 bytes. That’s true except when you’re trying to map a large Java string to a VARCHAR2. It fails when the physical size of the Java string is greater than 4,000 bytes with an ORA-01002 or fetch out of sequence error.

SELECT read_text_file('C:\Data\loader\Hobbit1.txt')
*
ERROR at line 1:
ORA-24345: A Truncation or null fetch error occurred
 
ERROR:
ORA-01002: fetch out of sequence

You need to grant privileges before you can test this code. You can …

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Continuent Delivers Real-Time Data to Cloudera | Business Wire
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SAN JOSE, CA– May 6, 2014 – Continuent, Inc., a leading provider of open source database clustering and replication solutions, today announced that their recently announced Tungsten Replicator 3.0 solution has been certified by Cloudera, the leader in enterprise analytic data management powered by Apache Hadoop™. Continuent Tungsten Replicator 3.0 enables organizations to quickly and easily 

Eventual consistency of NoSQL marketing
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Yesterday I learnt an important lesson about an important difference between NoSQL and MySQL, at least when it comes to the marketing and hype.

I saw a tweet from around marketing of one of NoSQL leaders:

Most people apparently would just conclude from the tweet's text, however I actually clicked the link, and couldn't believe eyes:

I guess that in …





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10 Newer Entries Showing entries 61 to 70 of 1423 10 Older Entries

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