At the select/omit-field level, you can specify a field name, a value, or *NULL for the parameter.
If you specify a value, the following rules apply:
Specify character strings with apostrophes (see Figure 25).
Specify hexadecimal character strings as an X followed by a combination of the digits 0 through 9 and the letters A through F, enclosed in apostrophes. The number of hexadecimal digits in apostrophes must be exactly twice the specified length of the field (see Figure 26).
COMP(EQ 'YYYY-MM-DD-HH.MM.SS.UUUUUU')
If you specify *NULL, the relational operator must be EQ or NE.
COMP selects or omits records retrieved from the physical file on which this logical file is based when your program sends an input operation to the record format you are defining. The OS/400 program selects or omits records as a result of testing the value of the select/omit fields against the value you specify, the value of the field whose name you specify, or the null value (if *NULL was specified).
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