
Course Description (By Curriculum)

3 to 4 hours
Personnel requiring the ability to code in Tandem Transaction Application Language (TAL)
Programming technique and knowledge of the Tandem system
After completing this course, the student will be able to:
• Define the basics of TAL programming
• Identify how to code TAL programs
Structure of a TAL Program
Basic Rules of TAL Syntax
Some Commonly Used TAL Syntax
Some Commonly Used TAL Procedures
TAL:
- Comments
- Begin/ End Pairs
- Variables
- External Procedures
- Integers
- Global Variables
- Local Variables
- Assign Statement
- Arithmetic Operations
- Myterm
- Open Procedure
- Write Procedure
- Read Procedure
- If Then Else Statement
- Stop Procedure
Compiling a Program
String Variables
Layout of a TAL Program
TAL – Structs, Substructs
TAL – STARTUP message
$RECEIVE file
One Way Interprocess Communication - the Caller, the Receiver
Two Way Interprocess Communication
- The Requester
- Replying, the Server
TAL Error Processing on File Operations
Types of Disk Files
- Entry Sequenced Files
- Key Sequenced Files
- Key Position Procedure
- Relative Files
- Structured Files
- Partitioned Files
Equivalencing
Direct and Indirect Variables
DEFINE