Administration and Programming Guide for OS/400

REXX Language Environment

Use the following tips to improve the performance of your Net.Data application:

• Combine your REXX programs where possible. Having fewer, larger programs provides better performance than more smaller programs because the REXX interpreter is initialized each time a REXX language environment function is called in the macro.
• Store the REXX program in an external file instead of including the REXX program inline in the Net.Data macro.
• For external REXX programs, reference the global variables on the command line in the %EXEC statement.
• Pass input-only parameters directly to a REXX program by defining global Net.Data variables and referencing the variables. For inline REXX programs, reference the global variables directly in your REXX source.