New table sequences are provided at execution time using the KEYWORDS DD data set. The order is determined by specifying an operator of EXEC, DD or DCB in Column 1 followed by at least one space and then the keyword starting in Column 6. The keywords are sequenced based on their order in this input stream. You can intersperse operators in the KEYWORDS DD data set. However, it is difficult to easily verify the resulting table order, since the JCLNeat reporting of KEYWORDS INPUT BY USER: is printed in input sequence. Therefore, for clarity and ease of use, it is suggested that all keywords for one JCL operator be input first, followed by all the keywords for the next JCL operator, followed by all the keywords for the last JCL operator.
Keyword tables are not merged. This means that each table specification (the installation default or the execution-time KEYWORDS DD data set table) must be self-contained. You must specify all parameters whose sequence matters to you. The default table is not collated with the execution-time user table.
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