07-08-2017
Not clear.
Is the requirement "For every rule in table 1 scour table 2 for one (or more?) matching records and print out one case in the case statement"? Match means identical yes / no (value / empty) patterns between the two tables. As line 2 and 4 in table 2 have the same yes / no pattern, you want two cases printed?
The third case statement cannot be produced with any of the keys in table 1.
Why do you need table 1 at all? The case statement shown can be produced from table 2 alone.
Is it correct that keys 2,3, and 4 are not applicable to table 2 shown as P_CODE is not empty in any record?
Why, in the second case, is M_SRC = 5 and not 6 as in table 2?
Do you really mean "D means this column used for the rule", or the opposite?
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