/*  Suchen aller Felder mit Datentyp INTEGER    */
/*  Wenn Inhalt ? ist -> dann auf 0 setzen      */

DEFINE VARIABLE cFiles  AS CHARACTER NO-UNDO.
DEFINE VARIABLE cFile   AS CHARACTER NO-UNDO.
DEFINE VARIABLE cFelder AS CHARACTER NO-UNDO.
DEFINE VARIABLE cFeld   AS CHARACTER NO-UNDO.
DEFINE VARIABLE ii      AS INTEGER   NO-UNDO.
DEFINE VARIABLE i1      AS INTEGER   NO-UNDO.
DEFINE VARIABLE hFeld   AS HANDLE    NO-UNDO.
DEFINE VARIABLE iAnz    AS INTEGER   NO-UNDO.
DEFINE VARIABLE hbFile  AS HANDLE    NO-UNDO.
DEFINE VARIABLE hQuery  AS HANDLE    NO-UNDO.
DEFINE VARIABLE lError  AS LOGICAL   NO-UNDO.

DEFINE TEMP-TABLE tMutation
    FIELD cFile  AS CHARACTER 
    FIELD cFeld  AS CHARACTER
    FIELD lError AS LOGICAL
    . 

FOR EACH _File NO-LOCK
    WHERE NOT _File._File-Name BEGINS 'SYS'
    AND   NOT _File._File-Name BEGINS '_'
    BY _File._File-Name :
    cFiles = cFiles
        + (IF cFiles = '' THEN '' ELSE ',')
        + _File._File-Name.
END.
MESSAGE cFiles VIEW-AS ALERT-BOX.

DO i1 = 1 TO NUM-ENTRIES(cFiles, ','):
    cFile = ENTRY(i1, cFiles, ',').
    CREATE BUFFER hbFile FOR TABLE cFile.
    cFelder = ''.
    CREATE QUERY hQuery.
    hQuery:SET-BUFFERS(hbFile).
    hQuery:QUERY-PREPARE(SUBSTITUTE('FOR EACH &1 ', cFile)).
    hQuery:QUERY-OPEN().
    hQuery:GET-FIRST().

    DO ii = 1 TO hbFile:NUM-FIELDS:
        hFeld = hbFile:BUFFER-FIELD(ii) NO-ERROR.
        IF hFeld:EXTENT > 0 THEN NEXT.
        IF hFeld:DATA-TYPE <> 'INTEGER' THEN NEXT.
        cFelder = cFelder
            + (IF cFelder = '' THEN '' ELSE ',')
            + hFeld:NAME.
    END.
   
    DO WHILE NOT hQuery:QUERY-OFF-END:
        DO TRANSACTION:
            hQuery:GET-CURRENT ( EXCLUSIVE-LOCK ).
            DO ii = 1 TO NUM-ENTRIES(cFelder, ','):
                cFeld = ENTRY(ii, cFelder, ',').
                hFeld = hbFile:BUFFER-FIELD(cFeld) NO-ERROR.
                IF hFeld:BUFFER-VALUE <> ? THEN NEXT.
                hFeld:BUFFER-VALUE = 0 NO-ERROR.
                lError = ERROR-STATUS:ERROR.
                CREATE tMutation.
                ASSIGN  
                    tMutation.cFile  = cFile
                    tMutation.cFeld  = cFeld
                    tMutation.lError = lError.
            END.
        END.
        hQuery:GET-NEXT().
    END.
    hQuery:QUERY-CLOSE().
    DELETE OBJECT hQuery.
    DELETE OBJECT hbFile.
END.

OUTPUT TO 'C:\Entwicklung\TEMP\IntegerTo0.log' NO-MAP NO-CONVERT.
FOR EACH tMutation:
    EXPORT DELIMITER ';' tMutation.
END.
OUTPUT CLOSE.