Things You (probably) Didn’t Know You Can do with a Hash Table!

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Protiviti Ltd

32 London Bridge St · London

How to find us

Wait in the reception at the top of the escalators by the Shard! Be sure to arrive on time as you will need to be escorted to the correct floor. And don't forget your ID!

Location image of event venue


SUGUKI has a special guest - Don Henderson! If you are interested in the power of the SAS hash table, well - Don (and Paul "Hashman" Dorfman) literally wrote the book on it.

There's more - we have a special venue! Big thanks to our sponsors PROTIVITI who are providing refreshments and a meeting space in the London SHARD!

However - it gets even better. There will be a prize draw, with not one - but TWO (signed) copies of this seminal book to be given away!!

So - don't miss it. Note that the event is scheduled to be shorter than usual (as just one presentation), however all are welcome to for drinks / food afterwards.

Please be at the reception between 1815 and 1830 - as you will need to be escorted up to the office. NOTE - YOU NEED PHOTO IDENTIFICATION TO GET PAST SECURITY!! The presentation will begin by 1845, and we'll mingle afterwards, aiming to leave around 2000 to a nearby pub.


This presentation will provide an overview of the just released (in July 2018) of the SAS Press book: “Data Management Solutions Using SAS® Hash Table Operations: A Business Intelligence Case Study.”
Hash tables are a very powerful and flexible data structure. Most SAS applications of hash tables focus on just one of their many powerful facilities: table lookup. Hash tables are a fantastic table lookup tool and their use for that should never be diminished. They can be used for so much more, e.g.:

 Has many of the features of an in memory data base
 Can be used for data aggregation at multiple levels
 Are easily parameterized
 Memory constraints are not a deal breaker
 Can often be more efficient than standard SAS approaches to data management

The presentation will include selected examples from the book.


Don Henderson is the Owner and Principal of Henderson Consulting Services, a SAS Affiliate Partner. Don has used SAS software since 1975, designing and developing business applications with a focus on data warehouse, business intelligence, and analytic applications. Don was one of the primary architects in the initial development and release of SAS/IntrNet software in 1996, and he was one of the original developers for the SAS/IntrNet Application Dispatcher. Don is the author of SAS Server Pages: Generating Dynamic Content, Building Web Applications with SAS/IntrNet: A Guide to the Application Dispatcher, and Data Management Solutions Using SAS Hash Table Operations: A Business Intelligence Case Study.