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6.2.31 REWRITE Statement

The REWRITE statement logically replaces an existing record in a direct-access file. When the REWRITE statement is executed, the associated direct-access file must be open in I-O mode.

X >_Workstation_> Under AIX, OS/2, and Windows the REWRITE statement is not
X supported for line sequential files. <_Workstation_<

    ___ Format _____________________________________________________________ 
   |                                                                        |
   | >>__REWRITE__record-name-1__ ____________________ ___________________> |
   |                             |_FROM__identifier-1_|                     |
   |                                                                        |
   | >__ __________________________________________ ______________________> |
   |    |_INVALID__ _____ __imperative-statement-1_|                        |
   |               |_KEY_|                                                  |
   |                                                                        |
   | >__ ______________________________________________ __________________> |
   |    |_NOT INVALID__ _____ __imperative-statement-2_|                    |
   |                   |_KEY_|                                              |
   |                                                                        |
   | >__ _____________ __________________________________________________>< |
   |    |_END-REWRITE_|                                                     |
   |                                                                        |
Must be the name of a logical record in a Data Division FD entry. The record-name can be qualified.

X Record-name-1 can define a floating-point data item or DBCS data item.
X Identifier-1 must be a DBCS data item if record-name-1 is a DBCS data
X item.

FROM phrase
The result of the execution of the REWRITE statement with the FROM identifier-1 phrase is equivalent to the execution of the following statements in the order specified.

         MOVE identifier-1 TO record-name-1.
         REWRITE record-name-1

The MOVE is performed according to the rules for the MOVE statement without the CORRESPONDING phrase.

Identifier-1 can be one of the following:

Identifier-1 and record-name-1 must not refer to the same storage area.

After the REWRITE statement is executed, the information is still available in identifier-1 (See "INTO/FROM Identifier Phrase" under "Common Processing Facilities" in topic


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