The ALTSEQ keyword indicates whether an alternate collating sequence is
used, if so, whether it is internal or external to the source. The following
list shows what happens for the different possible keyword and parameter combinations.
Keyword/Parameter
Collating Sequence Used
ALTSEQ not specified
Normal collating sequence
ALTSEQ(*NONE)
Normal collating sequence
ALTSEQ, no parameters
Alternate collating sequence specified in source
ALTSEQ(*SRC)
Alternate collating sequence specified in source
ALTSEQ(*EXT)
Alternate collating sequence specified by the SRTSEQ and LANGID command
parameters or keywords.
If ALTSEQ is not specified or specified with *NONE or *EXT, an alternate
collating sequence table must not be specified in the program.