The SQL Connection  Relational Data Base Management Systems

Introduction
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Structured Query Language (SQL) is a standardized language for defining and manipulating data in a relational database. A relational database may be perceived as a set of tables. The tables can be created, viewed, changed, manipulated or deleted in accordance with the relational model.

The SQL Connection provides a suite of sample programs and documentation that shows how to do practical task for creating and managing a relational data base. The sample programs use embedded SQL.

Embedded SQL is SQL syntax written within an application programming languages such as COBOL and preprocessed by an SQL preprocessor before the application program is compiled.

The SQL examples are written to compile and execute in the Micro Focus environment or an IBM Mainframe, DB2 environment. For the Micro Focus Mainframe Express (MFE) or IBM Mainframe (ZOS) environments sample JCL members are included. For Micro Focus Net Express and the Microsoft Windows environment sample CMD files are included. The Micro Focus SQL option is used as the Relational Data Base engine (XDB) for the Windows environment.

Customer Table, An Overview
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This section provides examples of embedded SQL programming techniques using COBOL. The source members provided by SimoTime are stored in Partitioned Data Sets on the mainframe and a similar directory structure on the Personal Computer using Windows.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Customer Table, Batch Processing
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The following examples will describe and demonstrate the batch processing of a relational table that is loaded with customer information. The batch examples include a JCL member that uses IKJEFT01 to execute the COBOL programs with embedded EXEC SQL syntax.

Customer Table, Batch, Create a Customer Table
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This suite of programs provides an example of how to create a table and create an index using a unique key.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Customer Table, Batch, Insert a Row into the Customer Table
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This suite of programs provides an example of how to insert data into a table.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Customer Table, Batch, Update an Existing Row in the Customer Table
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This suite of programs provides an example of how to update data in a table.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Customer Table, Batch, Process the Table Sequentially by Primary Key
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This suite of programs provides an example of how to use cursor processing to access a table sequentially by key and one row at a time.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Customer Table, Batch, Delete the Customer Table
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This suite of programs provides an example of how to delete a table and delete an index.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Customer Table, Online Processing
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WIP

Customer Table, Online, View with Possible Row Update or Insert
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The Customer Table Inquiry Screen contains a prompt for a new Customer Number and the customer information from a previous request. Once a new customer number is entered the Customer Data Base is accessed and the new information is displayed. The transaction identifier (or Tran ID) to update the customer table is "CQU1" and the program name is "CQ2UPD".

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Item Table, An Overview
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This section provides examples of embedded SQL programming techniques using COBOL. The source members provided by SimoTime are stored in Partitioned Data Sets on the mainframe and a similar directory structure on the Personal Computer using Windows.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Item Table, Batch Processing
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The following examples will describe and demonstrate the batch processing of a relational table that is loaded with item or product information. The batch examples include a JCL member that uses IKJEFT01 to execute the COBOL programs with embedded EXEC SQL syntax.

Item Table, Batch, Create an Item Table
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This suite of programs provides an example of how to create a table and create an index using a unique key.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Item Table, Batch, Insert a Row into the Item Table
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This suite of programs provides an example of how to insert data into a table.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Item Table, Batch, Update an Existing Row in the Item Table
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This suite of programs provides an example of how to update data in a table.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Item Table, Batch, Process the Table Sequentially by Primary Key
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This suite of programs provides an example of how to use cursor processing to access a table sequentially by key and one row at a time.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Item Table, Batch, Delete the Item Table
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This suite of programs provides an example of how to delete a table and delete an index.

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Special Requirements and Additional Function
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The purpose of this document is to assist as a tutorial for new programmers or as a quick reference for experienced programmers. In the world of programming there are many ways to solve a problem. This documents and the links to other documents are intended to provide a choice of alternatives.

Menu Screen for Online Access to Relational Data Tables
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This group of COBOL programs and BMS screens present a menu of options to a 3270 device. The list of options focus on various SQL tasks. The transaction identifier (or Tran ID) to display this sub-menu is "AMSQ" and the program name is "MN1SQL".

Review the Documentation for this suite of program members. Link to an Evaluation zPAK Option that includes the program members, documentation and control files.

Summary
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The purpose of this document is to assist as a tutorial for new programmers or as a quick reference for experienced programmers. In the world of programming there are many ways to solve a problem. This documents and the links to other documents are intended to provide a choice of alternatives.

Software Agreement and Disclaimer
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Permission to use, copy, modify and distribute this software, documentation or training material for any purpose requires a fee to be paid to SimoTime Enterprises. Once the fee is received by SimoTime the latest version of the software, documentation or training material will be delivered and a license will be granted for use within an enterprise, provided the SimoTime copyright notice appear on all copies of the software. The SimoTime name or Logo may not be used in any advertising or publicity pertaining to the use of the software without the written permission of SimoTime Enterprises.

SimoTime Enterprises makes no warranty or representations about the suitability of the software, documentation or learning material for any purpose. It is provided "AS IS" without any expressed or implied warranty, including the implied warranties of merchantability, fitness for a particular purpose and non-infringement. SimoTime Enterprises shall not be liable for any direct, indirect, special or consequential damages resulting from the loss of use, data or projects, whether in an action of contract or tort, arising out of or in connection with the use or performance of this software, documentation or training material.

Downloads and Links to Similar Pages
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This section includes links to documents with additional information that is beyond the scope and purpose of this document. The first sub-section requires an internet connection, the second sub-section references locally available documents.

Downloads and Links, Internet Access Required
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The following links will require an internet connect.

A good place to start is The SimoTime Home Page for access to white papers, program examples and product information.

Explore The Mainframe System Model for additional information about defining, creating and managing the Environments, Processes, Functions and Data that are needed (required) to expand the platform flexibility and allow a business application currently running on a mainframe system to run on a Windows, UNIX or Linux system using Micro Focus Server Enterprise Edition.

Explore The ASCII and EBCDIC translation tables. These tables are provided for individuals that need to better understand the bit structures and differences of the encoding formats.

Explore The File Status Return Codes to interpret the results of accessing VSAM data sets and QSAM files.

Explore The Micro Focus Web Site for more information about products and services available from Micro Focus.

Downloads and Links, Local Access
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The following links should be accessible without an internet connection.

Explore The File Status Return Codes to interpret the results of accessing VSAM data sets and QSAM files.

Glossary of Terms
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Check out  The SimoTime Glossary  for a list of terms and definitions used in the documents provided by SimoTime.

Comments, Suggestions or Feedback
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This document was created and is maintained by SimoTime Enterprises.

If you have any questions, suggestions, comments or feedback please call or send an e-mail to: helpdesk@simotime.com

We appreciate hearing from you.

Company Overview
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Founded in 1987, SimoTime Enterprises 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. This includes the smallest thin client using the Internet and the very large mainframe systems. There is more to making the Internet work for your company's business than just having a nice looking WEB site. It is about combining the latest technologies and existing technologies with practical business experience. It's about the business of doing business and looking good in the process. 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.

Whether you want to use the Internet to expand into new market segments or as a delivery vehicle for existing business functions simply give us a call or check the web site at http://www.simotime.com