How does db2 work

HPC2 defines the techniques for achieving computing operations that match the speed of supercomputing from a cloud computing architecture. View Full Term. By clicking sign up, you agree to receive emails from Techopedia and agree to our Terms of Use and Privacy Policy.

Db2 is a line of data management products from IBM. IBM rebranded the line of database products Db2 in A relational database allows for a declarative model of the data and access to it via queries.

SQL is a very simple, English-like language which facilitates table creation, accessing and the manipulation of the data contained herein. Multiple entries in tables called records can be inserted, deleted and updated at the same time by concurrent users using commands specified in SQL. The range of computing platforms that DB2 runs on is wide, from mainframes and large distributed platforms to smaller scale PCs.

So now we have understood what the elements are, DB2 works by retrieving data through SQL queries from the tablespaces. The schemas and indexes are the elements that enable easy retrieval of data from the database.

The new features released in the newer version are some of the benefits DB2 has to offer, and not only that there are some exclusive importance or benefits of DB2 which we would like to discuss here in this section. With this article, we come to an end of understanding at a basic level of what DB2 means to a user of RDBMS and what are some of the features one should be looking at while planning to use this.

This is a guide to What is DB2? Here we discuss an introduction to DB2, working, features and importance in detail explanation. You can also go through our other related articles to learn more —. Submit Next Question. By signing up, you agree to our Terms of Use and Privacy Policy. Forgot Password? This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy.

Db2 comes out of the same IBM where E. Codd worked to develop the relational database concept in the first place. It has been around since the dawn of the relational database, but gets regular refreshes with new features all the time. There is a vast amount of engineering that has gone into Db2, driven by clients pushing IBM to make it better. Db2 can serve as a traditional relational database, a hierarchical database, an object-oriented database, an XML database, a store for JSON, or a key-value store, all depending on how exactly you implement it.

It can have some interesting integrations with Spark. Db2 is not the least bit open-source, but does have some free distributions. It is fully proprietary to IBM, and if you want to run it on larger servers, you must pay for proper licensing. Like with any complicated software product, licensing is not easy to fully understand. Community support means whatever you can find online for free to help you out, or whoever you can hire to help you with Db2.

PVU is a value that takes into account the number of processors and the power of the processors on the server you run DB2 on. There are several other methods of licensing DB2 that may apply to specific situations, including:.

Both must be paid to be considered in compliance. Not only do you legally get the specified edition of Db2 and all the ancillary things it may include, you also get the right to call IBM Support for questions and problems. If you encounter a specific bug, they may or may not be willing to provide you with a software patch to address that bug.

But if you know how to properly work with support, they can really help you out of some jams. There are several separate code bases for Db2. Some of the concepts and implementations can be very different, and a DBA for one code base cannot always do the other platforms. The main platforms are:.

Db2 also runs on Docker, now. There are decent images in the Docker store to use as a starting point. In my college-kid mind, this meant it was on its way out. Db2 is still newly adopted and well-loved all over the place. This blog focuses on Db2 on LUW — midrange, and there is no shortage of jobs or consulting gigs. Look up job postings, and you will see it Db2 is a skill in demand.

There seems to be a move towards technologists lately that can handle all of the skills, especially in smaller enterprises. This means a Db2 implementation that did not involve a DBA to build or support may work just fine, but many factors can cause it to fall apart. It is best to involve a specialist during build and for ongoing support, monitoring, and optimization.

The role of the DBA incorporates components of the Systems Administrator, Developer, Architect, and Business Analyst, and integrates with the specialists you may have in each of those areas. No-SQL has powerful use cases, but if you have data that can fit into a nice, clean relational schema, then that data can usually be more quickly updated, deleted, and queried in a relational database than a No-SQL system.

Nearly every company you do business with has relational databases on one platform or another. Relational databases still have a role to play. There are absolutely projects that work better with a no-SQL database. DB2 has all the standard features you require out of a relational database. It enforces data integrity by default and offers a wide range of recovery options to fit nearly any possible scenario.

DB2 offers several different formats of multi-server clustering for high availability, disaster recovery, and applying massive amounts of computing power to larger data sets. Db2 Blu is a columnar, memory-heavy database for analytics. Db2 is appropriate both for high-volume OLTP environments and giant data warehouses and analytics environments depending on how you implement it.

Many of the features of Db2 are covered in the other entries in this blog, and there are some features that are not covered. It is impossible to list every feature or even the major ones.