Dbdelete()
From Recital Documentation Wiki
Revision as of 12:49, 1 May 2009 by Yvonnemilne (Talk | contribs)
PURPOSE
logically delete a record
SYNOPSIS
#include "dbl.h" int dbdelete(dbf, recno) <input parameters> char *dbf; /* .DBF file descriptor */ long recno; /* Record number */ <output parameters> none
RETURN VALUE
The dbdelete() function returns 0 for success, or <0 if an error occurs. See the section on return code values for a detailed list of return codes.
DESCRIPTION
This function deletes the record logically, i.e., it marks the record deleted while physically the record remains in the .DBF file.
EXAMPLE
This example marks 20 records in a .DBF file whose file descriptor is in "char *dbf" deleted and reports the successful deletion on the standard output.
#include "dbl.h" char *dbf; /* File descriptor */ int i; /* Counter */ int rc; /* Return code */ for (i = 0; i < 20 ; ++i) { rc = dbdelete(dbf, i); if (rc == SUCCESS) printf("%d record deleted \n", i); else { printf("error number %d \n", rc); exit (1); } }
SEE ALSO
dbflush(), dbgetnr(), dbgetr(), dbgetrk(), dbrecall(), dbrmvkey(), dbrmvr(), dbdo()