The course is aimed at developers' not familiar VSAM file access. This course covers all aspects of Programming with VSAM files. The course teaches the design, writing and testing of COBOL or PL/1 programs accessing VSAM files. Many exercises are performed by the developer to ensure that the statements taught are fully understood and practical experience is gainedView Dates
Knowledge of COBOL or PL/1 is required. This can be gained by attending either course BT05 or BT06.
Whilst covering the basics of VSAM programming and how it is used, this course also aims to give an insight into different types of VSAM files.
On completion of this course the student will be able to:
- Understand and define VSAM files in a program
- Correctly code VSAM data access in a program
Development will be performed using:
- IBM Mainframe
For on-site courses (i.e. at your premises), we are more than happy to tailor the course agenda to suit your exact requirements. In many cases, we are able to build your in-house standards and naming conventions into the delivered course.On-site course enquiry (from £165 pp per day)
- SELECT / ASSIGN STATEMENT
- VSAM Select / Assign Statement
- FILE DEFINITION
- VSAM File Definition
- OPEN STATEMENT
- Opening VSAM Files
- READING AND RID FIELDS
- Specifying Key Fields for a VSAM Dataset
- VSAM File Direct Access
- VSAM File Sequential Access
- VSAM File Alternate Index Data Access
- START STATEMENT
- Positioning the File Pointer within a VSAM File
- WRITE STATEMENT
- Inserting Records into a VSAM File
- Placement of Records
- REWRITE STATEMENT
- Updating Records on a VSAM File
- Updating Restrictions
- DELETE STATEMENT
- Deleting Records from a VSAM File
- CLOSE STATEMENT
- Closing a VSAM File
- FILE STATUS CHECKING
- Checking the VSAM File Status
Practical sessions make up a large part of the course, allowing delegates to demonstrate and reinforce the lectures given. During these sessions the delegate will gain experience of writing and testing different types of COBOL or PL/1 programs accessing the various VSAM datasets available.
Examples are used extensively, ranging from simple code snippets to full applications with complete 'real world' functionality. These are supplied at the start of the course and it is encouraged that the delegates execute and 'experiment' with these under the instructor's guidance as they are introduced.
These examples are available to take away, along with the delegate's own work.
The comprehensive Student Guide supplied is fully indexed serving as a useful reference tool long after the course has finished. Delegates will also be able to access a free help-line with technical questions relating to topics covered on the course.