MultiValue Innovation Library

I'm excited to share an open-source project that bridges the gap between modern AI and MultiValue databases. u2-mcp is a Model Context Protocol (MCP) server that enables AI assistants like Claude to directly query and interact with Rocket Universe and UniData databases—while preserving native MultiValue semantics. 🔑 Key Features:• Query files using RetrieVe/UniQuery syntax• Read/write records with full dynamic array support• Access dictionaries and call BASIC subroutines• Built-in safety controls (read-only mode, command blocklist, query limits)• OAuth authentication for secure cloud deployment 💡 Why This Matters:Instead of flattening MultiValue data into relational models, u2-mcp preserves attributes, multivalues, and subvalues natively. Your AI assistant understands your data the way your applications do. Use Cases:• Natural language queries against your ERP/business data• AI-assisted report generation• Database documentation and exploration• Training new developers on legacy syste

Hello Rocket Community,We are migrating CICS applications from z/OS to Rocket Enterprise Server and have a custom security solution implemented in assembler that performs user authentication, authorization checks, and application sign-on processing through RACF.Our approach has been to convert the assembler modules to COBOL, preserve the existing application sign-on flow, and replace the RACF dependency with Rocket Enterprise Server ESM integrated with AD/AD LDS.Has anyone implemented a similar approach?Specifically, we're interested in:Preserving existing EXEC CICS SIGNON or related security calls. Minimizing application changes while maintaining existing authorization behavior. Lessons learned, challenges, or recommended alternatives.Any feedback or real-world experiences would be greatly appreciated.Thanks!​@Reny ​@Dmitri Chilovich ​@divyaprakash 

[Originally posted 07-17-2025 04:24]A step by step guide to building a simple Rocket MVIS application for UniVerse using the popular Vue 3 framework.This will introduce the concepts behind MVIS and develop your confidence in working with data sources, subroutines and Python to expose and update your MultiValue data. Learn how Vue can help you create a functionally enriched Single Page Application and leverage one of the most powerful and efficient reactive frameworks available today for handling real world web development.Designed to work with UniVerse Trial Edition, this uses free software throughout to get you up and running.Some knowledge of UniVerse is required, visit https://www.mvdeveloper.com to find more free training guides to get you started.

Various utilities I wrote:https://github.com/Krowemoh/TCL-Utilities Of note: CAT - Dump a record to the terminalNSH - Fish like shell for PickEVA - Vim like editor that handles BASIC and Pick dataJSON* - Subroutines that make handling JSON a breeze There are also wrappers around Linux commands that are are useful.

We have a situation where the final (compiled) .lwr file is available in the system but we lost the individual screens/pictures that were compiled into the .lwr file. Now we need to make changes to some of these screens and I am trying to find a way to unbundle the .lwr file that we have. I have Rocket MX and Automation workbench 10.5.4. and I couldn’t find any documentation on decollecting a .lwr file. Any information related to .lwr files is appreciated 

We have many WebDE applicastions . We also use Wildfly(formerly JBoss) as our Java Appication Server. As such, we make use of RedBeans.jar and asjava.jar in order to make connections , create RedObject(s) RedField(s) etc. We also make use of the uObject ReadData, WriteData, DeleteData, ClearData, PostRead, PostWrite, PostCreateServerEvent methods and the uQuery Select method.I think WebDE with Microsoft ASP applications woild be similar.MVIS seems to not take into account the above. Universe says it now ships WebDE with MVIS but WebDE is also at its end of life. Also, WebDE only works with Java 8 so it is not keeping up with Java releases.There isn’t even a Forum for WebDE in this community.Does anyone else use WebDE with Wildfly or ASP? If so, are you concerned about the future of WebDE? Do you have plans for your WebDE applications and how you plan convert the uObject and uQuery methods once WebDE is end of life?

Hi everyone,I wanted to share a concise "blueprint" for modernizing legacy MultiValue systems without the high risk and cost of a full rewrite. We built an MV modernization framework, and developed a strategy to gradually evolve green-screen, terminal-oriented applications into API-driven architectures and applications using the Strangler Fig Pattern.Key highlights of this approach: No Data Migration: Keep your data exactly where it is while using Rocket MVIS to expose it via standard APIs. Leverage Existing Skills: No need to learn new languages or complex stacks; the framework builds directly on your existing MV logic. Minimal Risk & Cost: Modernize incrementally at a fraction of the cost of a migration. Team Renewal: A "symbiotic" model that pairs veteran MV experts with new-gen developers to bridge the talent gap. We’ve put together a short video walking through the architecture of the framework, and how to start the transition:Modernizing MultiValue Applications: The Ale

With the shift from simple LLMs to transformative Agentic AI, we know an AI Revolution is coming, bringing significant changes in the near future.But a new question must be asked: Is your MV application ready to join the AI Revolution?MV application modernization is the key to leveraging AI, but when you really try to modernize, you will most likely run into a critical architectural roadblock that stalls progress.Find out what the real MV application modernization challenge is and, more importantly, how to overcome it:Watch the full video here: Is Your MultiValue App Ready to Join the AI Revolution?We invite you to watch, comment, and share your thoughts on the MV modernization journey!

Roadmap library 

I'm excited to share my work on integrating Model Context Protocol (MCP) with Rocket UniVerse!  What is MCP?Model Context Protocol is a new standardized way for AI assistants like ChatGPT and Claude to connect with external data sources and tools. Think of it as a the USB-C connector that lets AI assistants securely interact with your databases, APIs, and business systems. Why This Matters for MultiValueThis integration opens up powerful new possibilities for UniVerse users:- AI assistants can directly query your UniVerse databases- Natural language database interactions- Automated data analysis and reporting The ImplementationI've built an MCP server that enables seamless communication between AI assistants and Rocket UniVerse databases. This allows Claude and other AI tools to understand and work with your MultiValue data in real-time. Watch the DemoI've created a video walkthrough showing this in action:https://www.youtube.com/watch?v=TdW6NvHuF_U In the video, you'll see:- How the M

ESEARCH has been around for a long time, PESEARCH has been designed to expand on / replace the ESEARCH utility to allow Python RegEx Search Patterns and the ability for case insenstive searchs. Installation StepsRemove the .txt extensions from the attachments To install use the attached PESEARCH UniBasic program and Pesearch python function. Compile and Catalog the PESEARCH program. Install the Pesearch python script into a python location that can be located by UniVerse / UniData. Extra Steps for UniDataIf you are using UniData please also see the related article around to avoid running any LOGIN paragraph a second time and why this has to been done. In summary PESEARCH sets @USER.RETURN.CODE to "PY" and back to any previous setting so that @USER.RETURN.CODE can be tested in the LOGIN paragraph.LOGIN:PAIF @USER.RETURN.CODE = "PY" THEN GO 200200: Extra Steps for UniVerseBy default UniVerse will not keep a select list active when a basic program completes (UniData does).  In order to ge

Great news for the MV community! We're excited to share a document detailing our work with AI Code Assistants and how we're making AI-assisted development a reality for MV BASIC. With the Aleph Framework, we've achieved incredible results, including refactoring complex legacy code and boosting developer productivity. Read our full story in the article below to learn more

Unlock the full potential of XML and JSON handling with UDO commands in U2 Basic by mastering UDO options. This handy sample code, showcased at the MultiValue Symposium, empowers developers to tweak conversion behaviors effortlessly—without recompiling—via the versatile UDOOPTIONS utility. From toggling root node preservation to customizing namespace handling, learn how to get and set UDO options dynamically, ensuring your data transformations between XML and JSON are precisely tuned for your applications.

While there are many Python modules in pypi.org, to help you create Excel Spreadsheets from Python, I decided to show a feature in the pandas module that does it nicely, and it also has the added benefit of showing how you can turn a simple LIST statement into an excel spreadsheet.

Realize your best business continuity strategy with MultiValue.   This link contains articles, videos and infographics on MultiValue HA/DR and Replication

Rocket® UniVerse in a Docker container - Best Practices

Best Best Practices for Deploying MultiValue Applications to the Cloud

Python script to Automatically License / Authorise / Authorize UniVerse and UniData

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