OPEN Statement (ACUCOBOL-GT)

Syntax:

OPEN { {OUTPUT} { file [ {WITH} {MASS-UPDATE  } ] } ... } ...
       {I-O   }          {FOR } {BULK-ADDITION}
       {EXTEND}

Syntax Rules:

1. The MASS-UPDATE and BULK-ADDITION phrases may be specified only for indexed files, and may not be specified along with the INPUT phrase.
2. You must compile with the DIALECT"ACU" Compiler directive.

General Rules:

1. The WITH MASS-UPDATE phrase is equivalent to the WITH LOCK phrase with some additional effects. It may be specified only for indexed files. This phrase indicates to the run-time system that the file in question will be heavily updated by this program. The run-time system may be able to use this information to access the file more efficiently.
2. The BULK-ADDITION phrase is equivalent to the MASS-UPDATE phrase with some additional effects. For Vision files, the BULK-ADDITION phrase opens the file in "bulk addition" mode, which substantially increases efficiency when you are writing a large number of new records to the file. BULK-ADDITION has several significant effects, including some changes to standard COBOL file handling rules. See section 6.1.6.3 of ACUCOBOL-GT User's Guide for details. For host file systems other than Vision, specifying BULK-ADDITION has the same effect as specifying MASS-UPDATE. In this case, none of the special handling dictated by BULK-ADDITION applies.