When the record type is an exception record (indicated by an E in position 17), a name can be placed in these positions of the record line. The EXCEPT operation can specify the name assigned to a group of the records to be output. This name is called an EXCEPT name. An EXCEPT name must follow the rules for using . A group of any number of output records can use the same EXCEPT name, and the records do not have to be consecutive records.
When the EXCEPT operation is specified without an EXCEPT name, only those exception records without an EXCEPT name are checked and written if the conditioning indicators are satisfied.
When the EXCEPT operation specifies an EXCEPT name, only the exception records with that name are checked and written if the conditioning indicators are satisfied.
The EXCEPT name is specified on the main record line and applies to all AND/OR lines.
If an exception record with an EXCEPT name is conditioned by an overflow indicator, the record is written only during the overflow portion of the RPG IV cycle or during fetch overflow. The record is not written at the time the EXCEPT operation is processed.
An EXCEPT operation with no fields can be used to release a record lock in a file. The UNLOCK operation can also be used for this purpose. In Figure 165, the record lock in file RCDA is released by the EXCEPT operation. For more information, see ILE Application Development Example.
*...1....+....2....+....3....+....4....+....5....+....6....+....7...
CL0N01Factor1+++++++Opcode(E)+Factor2+++++++Result++++++++Len++D+HiLoEq..
C*
C KEY CHAIN RCDA
C EXCEPT RELEASE
ORcdname+++D...N01N02N03Excnam++++.......................................
O
O*
ORCDA E RELEASE
O* (no fields)