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    Text functions
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    Topic complex Table functions
    Function nextrec()
    Short Physical record number of the following one
    Syntax NEXTREC(Tabellenhandle : INTEGER) : INTEGER
    Parameter db: table handle from OPENDB
    Return Physical record number of the following one
    0, if no following record exists
    See also:
    prevrec() access() recno() firstrec() lastrec()
    Description The functions FIRSTREC, LASTREC, PREVREC and NEXREX always refer to the actual order which is defined with the function ACCESS.
    The following orders (orders of access) are possible:

    Number -> physical record number
    Mark -> internal marking list
    Index -> order is created from the index

    A typical sweep sequence look like:
    x:=FIRSREC(table)
    WHILE x DO
      READREC(table,x)
      ... work with the records
      x:=NEXTREC(table)
    END

    Information: The functions of these group should only be used in context of the index accesses. To access via physical record numbers or marking lists there are faster options:

    Number: x:=0; WHILE x++<=FILESIZE(table) DO ... END

    Mark: x:=FIRSTMARK(table); WHILE x DO ...; x:=NEXTMARK(table,x) END

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       Last changed: 21.10.2004
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