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It would appear at least one of the columns in the table is null-capable - and contains a null value.
Have you compiled with ALWNULL(*USRCTL) to accommodate this?
If you wish to process the null-value column, you will need to define a further indicator variable, (5I 0 - NOT a Logical Indicator) on the SELECT statement, e.g.
SELECT COL1, COL2 ,,,,, INTO :VAR1 :IND1, :VAR2, etc.
The indicator variable will contain 0 (not-null) or -1 (null). (Indicator variables can also be used to check for errors such as truncation or data mapping.)
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