c-treeRTG COBOL Edition User's Guide

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c-treeRTG Ready-to-Go Products

User Guide

c-treeRTG COBOL Edition User's Guide




Installing and configuring c-treeRTG COBOL Edition


© Copyright 2022, FairCom Corporation. All rights reserved. For full information, see the FairCom Copyright Notice.

 You may notice references to “FairCom DB,” the database technology beneath c-treeRTG. Formerly called “c-treeACE®” (Advanced Core Engine), this technology is the high-performance server that replaces your COBOL file system.

The c-treeRTG® product line leverages the technology of the FairCom Database Engine. Before explaining the details of installation and configuration, this guide will describe the features common to the c-treeRTG products.

Because the c-treeRTG products are designed as direct replacements for the native file systems, they require little or no modifications to your application.

Overview of c-treeRTG File System

Note: c-treeRTG V3 is based on the latest version of the powerful FairCom Server. The version numbers returned from utilities may reflect the underlying core version number of this server, which is currently V12.

How c-treeRTG Empowers Your Applications

The c-treeRTG products allow you to enhance your existing COBOL applications by upgrading the native file system to the advanced FairCom Database Engine. This file system allows direct access to your files. By replacing the native COBOL file system with a specialized version of the FairCom DB Advanced Core Engine, c-treeRTG brings many of the benefits of FairCom DB to your COBOL applications:

  • Transaction Processing
  • Client/Server Architecture, Sophisticated Caching & Index Compression
  • Multi-User Performance
  • Cross Platform/Multi-Platform Portability
  • Dynamic Backups
  • Granular Cache Support
  • Memory Files
  • Minimal Resource Requirements
  • Developer to Developer Support
  • SQL Access to Your Data

To take advantage of the complete set of features available to FairCom DB developers, you may need to use the FairCom DB Professional SDK in addition to your COBOL application development. This allows you to use industry-standard APIs such as .NET, Java or C/C++. Contact FairCom to explore using FairCom DB Professional.

In This Chapter

Documentation Overview

Key Benefits of c-treeRTG COBOL Edition

c-treeRTG Server Advantages

c-treeRTG SQL Access for Advanced Data Query

Extensive Alternative APIs and Drivers

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Documentation Overview

Content: This manual contains topics to help you get up and running with your c-treeRTG product:

Audience: These topics are intended for system architects, developers, and administrators.

c-treeRTG requires very little developer effort (it is intended to require little or no changes to your application). Instead, most of your effort is in migrating your data and, if you desire SQL access, defining the record schema through an external XML file called an XDD.

For an overview of this manual and of the procedures you will perform, see the chapter titled c-treeRTG COBOL Edition Quick Start.

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Key Benefits of c-treeRTG COBOL Edition

c-treeRTG provides many features for the application developer. Actual features may be limited based on particular license you have purchased. The complete list includes:

  • No need to recompile applications.
  • Quickly scale to thousands of users.
  • Eliminate persistent data corruption with advanced transaction control. c-treeRTG Server includes industrial-quality on-line transaction processing (OLTP) features that guarantee ACID (atomicity, consistency, isolation, durability) properties of transactions that are transparently (to the application) activated on any table.
  • Add SQL for native data records, including tables that have multiple schema definitions (redefined fields) in the same table. See Multiple Record Virtual Tables in the c-treeDB Developer's Guide.
  • Support for ACUCOBOL-GT Version 6.1.0 and later and isCOBOL,
  • Support for Micro Focus COBOL and other COBOL dialects through the standard Callable File Handler interface (ExtFH).
  • Support for RM/COBOL via the Btrieve interface.
  • New Plug-In architecture allows you to extend their functionality with advanced modular capabilities such as HTTP Web Services for browser-based tools and replication.
  • Integrated as an additional file system. The file and path management is transparent for both Vision and c-treeRTG files. Details for handling c-treeRTG files are specified in the c-treeRTG configuration file. See c-treeRTG File System Details in the c-treeRTG User's Guide.
  • c-treeRTG and other file handlers can co-exist in the same application allowing on-the-fly data conversion from one file system to another.
  • A multipurpose ctutil utility implements similar functionality as Vision's vutil utility as well as importing/exporting ASCII files created with the Btrieve butil utility.

Cross-platform support includes Windows, Linux, Solaris, Mac OS X, AIX, HP-UX and others.

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c-treeRTG Server Advantages

c-treeRTG is much more than another "COBOL driver." c-treeRTG is based on the full-featured FairCom Database proven in over 45 years powering thousands of mission-critical applications such as banking and financial transaction management, aviation flight plan coordination, package tracking, materials handling and factory automation, and health care office practice management. What do these have in common? They all depend on reliable 24/7 data integrity, advanced features and never sacrificing performance. c-treeRTG delivers these same advantages to your existing COBOL applications. This list only a peek into what your legacy applications can immediately gain from c-treeRTG.

Data integrity

Data security and protection

Performance from in-memory data caching

Availability through Database Replication

Plug-ins for Advanced server side functionality

Advanced Database Features

Centralized Management

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c-treeRTG SQL Access for Advanced Data Query

Once you've added the many c-treeRTG server features to your application suite, you'll want to take the next step to advanced data access. c-treeRTG includes a powerful SQL engine directly over existing legacy data. No data duplication to alternate databases. No data normalization processes. No ETL, Direct SQL query reporting over YOUR data. c-treeRTG is not a read only "ODBC Driver." c-treeRTG is complete, concurrent access with read-write functionality. Locking and transaction control is completely coordinated with existing application access. See you data in a whole new view with c-treeRTG SQL.

ANSI SQL Data access

  • Advanced join engine for sophisticated data query
  • Recursive (common table expression) queries
  • Cross-database query
  • Table Valued Functions
  • Multi-row INSERT
  • Sequence number generator

Add SQL Over Legacy Data

Full-text indexing and search

Server side processing

Data Security

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Extensive Alternative APIs and Drivers

Once you centralize complete database management over your existing data, why not open it to modern APIs and frameworks, from both SQL and fast direct record access. c-treeRTG includes a full complement of drivers and APIs immediately ready to access your data. C, Java, .NET, Python? Your choice. Pick the access method best suited for your task and framework at hand.

ISAM Drivers and APIs

C, C++, Java, .NET, Python, REST

SQL Drivers

C, ODBC, JDBC, ADO.NET, Python, Node.js