How to read vsam file using alternate index in cobol




















Site Search User. State Not Answered Replies reply 1. Related Discussions. Share More Cancel. Read Next is resulting in records in below order. Prime Key 2 b. Prime Key 1 c. Prime Key and so on.. The first sub-section requires an internet connection, the second sub-section references locally available documents. Note: A SimoTime License is required for the items to be made available on a local server.

These tables are provided for individuals that need to better understand the bit structures and differences of the encoding formats. This suite of programs and documentation is available for download. Link to an Evaluation zPAK Option that includes the program members, documentation and control files. A good place to start is The SimoTime Home Page for access to white papers, program examples and product information.

This link requires an Internet Connection. Explore the Glossary of Terms for a list of terms and definitions used in this suite of documents and white papers. This document was created and is maintained by SimoTime Technologies. If you have any questions, suggestions, comments or feedback please use the following contact information.

SimoTime Technologies was founded in and is a privately owned company. We specialize in the creation and deployment of business applications using new or existing technologies and services. We have a team of individuals that understand the broad range of technologies being used in today's environments. Our customers include small businesses using Internet technologies to corporations using very large mainframe systems. Quite often, to reach larger markets or provide a higher level of service to existing customers it requires the newer Internet technologies to work in a complementary manner with existing corporate mainframe systems.

We specialize in preparing applications and the associated data that are currently residing on a single platform to be distributed across a variety of platforms. Preparing the application programs will require the transfer of source members that will be compiled and deployed on the target platform.

The data will need to be transferred between the systems and may need to be converted and validated at various stages within the process. SimoTime has the technology, services and experience to assist in the application and data management tasks involved with doing business in a multi-system environment.

Table of Contents. Program Requirements. Quick Start, Run Sample Programs. Mainframe Oriented Environment. Windows Oriented Environment. The JCL Members. Define the Alternate Index. Build the Alternate Index. Use the Primary Key and Print Report.

Use the Alternate Key and Print Report. Use Either Key and Print Report. The CMD Members. In Runjcl specify dd for path. For Ex: when the Key Postion is from 11 column to 10 Bytes , then while defining it , should be Keys 10 10 not 10 Thanks, Alamelu.

Posted: Thu Jul 21, am. I believe the alternate index has not been created properly then. Pls check. Best regards, Prasad.

Thanks Regards Shobam. Posted: Thu Jul 21, pm. Hi, Thanks All. I think the problem is in the Alternate key position. I will see this. Define Path Relate this to Alternate Index file. Case I: One would like to query on this file for players belonging to a particular country.

By using the AIX and path, one does not have to browse through all the records in the file. The AIX has the relationship established between the alternate key and primary key whereas the path has the records re-arranged in the order of the alternate key, thus establishing the logical link.

How does alternate index works: The alternate index is initially searched for the alternate key and the primary key is obtained from that. Based on the primary key obtained from the alternate index, the records in the base cluster are searched. This involves more coding in the part of the programmer and this can be avoided by defining the path.

The path creates the logical link between the base and alternate index.



0コメント

  • 1000 / 1000