Business demands for trusted digital experiences and greater agility are two of the strongest currents driving business transformation and modernization these days, especially in the mainframe arena. This week, IBM is announcing a single-frame IBM Z built on an industry-standard 19” form factor, designed to create a low-cost, secure cloud infrastructure and capitalize on new […]
In-Memory Computing Planet® Blogs and Events
Today, IBM announced its newest cloud-ready mainframes — the IBM z14 Model ZR1 and IBM LinuxONE Rockhopper II, the latest additions to its family of servers announced in 2017. The new systems feature a 19-inch industry standard, single-frame design allowing for easy placement into cloud data centers and for private cloud environments. This will bring […]
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IBM Think 2018 unfolded in March with a series of exciting announcements about IBM Cloud. Security was a hot topic and with the RSA Conference just around the corner, the security and cloud momentum around trusted cloud platforms for Intel and our longtime collaboration partner IBM continues. At IBM Think, IBM announced expansion of their ...continue reading Intel Architecture Enables New IBM Cloud Service with Enhanced Container Security
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How Digital Business, Big Data, HTAP and In-Memory Computing Came Together to Improve the Customer Experience:
Is AI hype, or does it drive real business benefits? What are the main considerations in building an AI strategy that enterprises need to be aware of? These are some of the questions that I had the privilege of asking a panel of AI experts from IBM, NVIDIA and Gara Guru at the IBM Think […]
The fourth and final meetup that I attended on my trip to Washington DC was held on Thursday 5 April at The Hotel at Arundel Preserve, 7795 Arundel Mills Boulevard, Hanover, Maryland. The meetup was organized by Apache Spark and Distributed Computing Maryland.
The second annual In-Memory Computing Summit Europe is June 25-26 at the Park Plaza Victoria in London.
AWe are currently at an inflection point for a massive industry shift fueled by data. Exponential growth of data is coming together with exponential growth in the capabilities to apply analytics and machine learning to data. The world is becoming digital and intelligent. Nearly all existing business processes can be augmented with artificial intelligence (AI) […]
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Speeding up In-Memory Joins using Join Groups
What are Join Groups?
A new In-Memory feature called Join Groups was introduced with the Database In-Memory Option in Oracle Database 12.2. Join Groups can be created to significantly speed up hash join performance in an In-Memory execution plan. Creating a Join Group involves identifying up-front the set of join key columns (across any number of tables) likely to be joined with by subsequent queries. For example, the following join group object connects EMP and DEPT tables with their respective deptno join key columns:
create inmemory join group JG (EMP(deptno), DEPT(deptno));
After the creation of the join group, populating the tables involved in the join group will result in a single domain dictionary built that join keys from the join columns specified in the Join Group are mapped to. By pre-defining and storing a single map across…
The third meetup that I attended on my trip to Washington, D.C. was held on Wednesday 4 April at REI Systems, 45335 Vintage Park Plaza, Sterling, Virginia. The meetup was organized by Nova Data Science.
The location of the meetup was quite far from where my colleague Chris Cook and I were staying, so we had to journey out of Washington taking the Metro and then on-demand car transportation. Jokingly, Chris and I agreed that the journey felt rather like the movie "Planes, Trains and Automobiles."
“Come, thick night, and pall thee in the dunnest smoke of hell, that my keen knife see not the wound it makes, nor heaven peep through the blanket of the dark.” —William Shakespeare, Macbeth, Act 1, Scene 5 There’s a little Shakespeare for you: that’s Lady Macbeth, waiting for the doomed King Duncan to arrive […]
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