Using the MultiValue Features of Caché
Frequently Asked Questions about MultiValue and Caché
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General
This Question and Answer Set includes the following topics:
  • Questions of a General Nature about Caché and MultiValue

  • Questions of a General Nature about Caché and MultiValue
    Question:
    Why is InterSystems adding MultiValue support to Caché?
    Answer:
    For almost thirty years, InterSystems Corporation has been the partner of choice of professional application developers around the world. Two themes underlie our commitment to application developers: deliver great technology and have a total commitment to make our partners successful.
    Developers in the MultiValue community have succeeded by delivering practical technology and consistent value over the long term. Pragmatism, a focus on rapid application development and a long-term view of business relationships characterize both the MultiValue world and the application partners already served by InterSystems.
    InterSystems offers the MultiValue community
    Question:
    What does Caché offer MultiValue developers?
    Answer:
    InterSystems implemented a broad set of MultiValue extensions to its Caché high-performance object database. These extensions bring the full range of Caché object and SQL development technologies to MultiValue developers:
    Question:
    Is Caché MultiValue an add-on product to Caché? Is there a special version of Caché only for MultiValue users?
    Answer:
    MultiValue features are a standard part of Caché. This release is not an add-on product or a special version of Caché for MultiValue users only.
    Question:
    What MultiValue features are included in Caché?
    Answer:
    Caché has been enhanced with a wide range of MultiValue capabilities. These include:
    Question:
    What new features does Caché deliver for MultiValue developers?
    Answer:
    At the heart of Caché is a powerful, multidimensional transaction engine that includes the ability to easily deploy distributed databases. This provides application developers with a unified data architecture uniting the power of objects, high performance SQL and traditional MultiValue data access.
    For MultiValue applications, Caché offers:
    Question:
    On what platforms does Caché run? Is MultiValue functionality supported on all Caché platforms?
    Answer:
    MultiValue features are a standard part of Caché, and are available on all Caché platforms, except OpenVMS.
    Question:
    How fast is Caché?
    Answer:
    High-performance database technology has been the cornerstone of InterSystems products since our founding 28 years ago. For object and SQL based applications, Caché is the engine of choice for both performance and scalability. Our continuing investments in the Caché engine will bring new levels of performance for MultiValue applications.
    Question:
    Will I have to abandon my MVBasic development environment?
    Answer:
    No. Caché fully supports MultiValue Basic (MVBasic). You can continue to develop applications using MVBasic and MultiValue Queries. The new features are available to re-use and extend your application logic via Java, EJB, JDBC, ActiveX, .NET, C++, ODBC, XML, SOAP and more.
    Question:
    Once I migrate my MultiValue application to Caché, can I use all the other Caché features (objects, SQL, dynamic Web pages, Web Service, etc.) to access my MultiValue data?
    Answer:
    Yes. Caché’s Unified Data Architecture means that you can access your data as objects, SQL, as MultiValue files or using MultiValue queries.
    Question:
    Does Caché support a query language like English, Access or Recall?
    Answer:
    Yes, we do and it is very similar to that on other MultiValue systems. English is the Microdata name for it; Access is the PICK name; Recall is the UniVerse name.
    On Caché it is referred to as CMQL. It is described in the Caché MultiValue Query Language (CMQL) Reference.
    Question:
    How do I move my code and my data to Caché?
    Answer:
    Caché provides a utility, MVIMPORT, to import files that have been created with account export utilities from MultiValue products.
    Question:
    How long does it take to migrate?
    Answer:
    The time to migrate varies by application. InterSystems will work directly with you to facilitate your migration. Our Systems Engineers and World-Wide Response Center provide on-site, phone, web and email support.
    Resources
    This Question and Answer Set includes the following topics:
  • What Resources Are Available to Users?

  • What Resources Are Available to Users?
    Question:
    Is there training available?
    Answer:
    InterSystems provides a broad range of education services, including on-site, classroom and web-based training. Free webinars are available covering every aspect of Caché development and deployment. New webinars specifically targeted at the MultiValue community will be introduced in the coming months.
    Question:
    How does InterSystems provide support?
    Answer:
    InterSystems offers only one level of support — 24 hours a day, 365 days a year. Our InterSystems Worldwide Response Center (WRC) (WRC) is concentrated in Cambridge, Massachusetts (for proximity to the development team) but is complemented by local offices, providing local language and time zone support. Our service is second to none.
    Question:
    Is the documentation available separately?
    Answer:
    Documentation on all aspects of Caché is available in Adobe Portable Document Format (PDF) from our corporate website. You may download individual books and articles as well as groups of related material.
    This same material will be available once Caché is installed on your local machine, and can be accessed via the browser of your choice.
    Question:
    What other materials are available to help me learn Caché?
    Answer:
    Once Caché is installed, there are interactive tutorials that teach you how to use some of the more important features of Caché. These are also accessed online. Choose the “Caché Tutorials” options from the documentation main page.
    Question:
    How do I get more information about Caché and MultiValue?
    Answer:
    Peruse the information on our corporate website.
    Business
    This Question and Answer Set includes the following topics:
  • What Are Some Business Considerations I Should Be Aware of?

  • What Are Some Business Considerations I Should Be Aware of?
    Question:
    What's the cost? Is it comparable to what I now pay?
    Answer:
    InterSystems has a long history of working with application partners. Caché pricing is based on the model that InterSystems makes money when you make money i.e., when your application is deployed. We have a range of pricing models for Caché. Discuss your business model with us and we’ll work together to find the best model for your business.