UNLOCK

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Revision as of 14:56, 20 April 2022 by SMcNeill (talk | contribs) (Created page with "The {{KW|UNLOCK}} statement opens access to parts or all of a file to other programs and network users. {{PageSyntax}} :<code>{{KW|UNLOCK}} [#]{{Parameter|fileNumber%}}</code> :<code>{{KW|UNLOCK}} [#]{{Parameter|fileNumber%}}, {{Parameter|record&}}</code> :<code>{{KW|UNLOCK}} [#]{{Parameter|fileNumber%}}, [{{Parameter|firstRecord&}}] TO {{Parameter|lastRecord&}}</code> {{PageDescription}} * {{Parameter|fileNumber%}} is the file number of the file to unlock. * In the...")
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The Template:KW statement opens access to parts or all of a file to other programs and network users.


Syntax

Template:KW [#]fileNumber%
Template:KW [#]fileNumber%, record&
Template:KW [#]fileNumber%, [firstRecord&] TO lastRecord&


Description

  • fileNumber% is the file number of the file to unlock.
  • In the first syntax, the entire file is unlocked.
  • In the second syntax, record& is the record number of the file to unlock.
  • In the third syntax, the records or bytes in the range [firstRecord&,lastRecord&] are unlocked. If firstRecord& is omitted, it is assumed to be the first record or byte.
  • For files opened in BINARY mode, each record corresponds to a single byte.
  • LOCK and UNLOCK statements are always used in pairs and each statement must match the other one.
  • Files must be unlocked before other programs can access them, and before the file is closed.
  • Keyword Not Supported in Linux or MAC versions


See also



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