Apply Engine scripts contain instructions that define the processing to be performed by the Apply Engine using source and target datastores. Apply Engine scripts can be created and modified using the text editor of your choice. That said, the editor of choice is often platform dependent; on z/OS for example, ISPF is the defacto standard; on windows many prefer using Notepad ++; Unix zealots need no recommendations... nor want one!
Once an Apply Engine script is created, it must be parsed before it can be executed. That can be a two step process using the PARSER component or using SQDENG which combines the parse with execution if the parse is successful. In either case the parse setp validates and then translates the script into the optimized machine readable format is used by the SQDATA Engine component or the second phase of SQDENG.
The following topics within this section describe the activities required to create and parse an Apply Engine script in your environment. Examples are provided to assist in the understanding of the various scenarios that are likely to be encountered during the development of scripts.