When you want to download internal table to PC file in ABAP/4, you can apply function module "WS_DOWNLOAD".

Example

  CALL FUNCTION ’WS_DOWNLOAD’
       EXPORTING
            FILENAME                = LV_TEXT   "PC File Name and Location
            FILETYPE                = ’DAT’
       TABLES
            DATA_TAB                = I_MESG    "Internal Table
       EXCEPTIONS
            FILE_OPEN_ERROR         = 1
            FILE_WRITE_ERROR        = 2
            INVALID_FILESIZE        = 3
            INVALID_TYPE            = 4
            NO_BATCH                = 5
            UNKNOWN_ERROR           = 6
            INVALID_TABLE_WIDTH     = 7
            GUI_REFUSE_FILETRANSFER = 8
            CUSTOMER_ERROR          = 9
            OTHERS                  = 10.  

When you want to get name of day by using date in ABAP/4, you can apply function module "DATE_TO_DAY".

Example

*&---------------------------------------------------------------------*
*&      Form  get_name_of_day
*&---------------------------------------------------------------------*
FORM get_name_of_day USING    PAR_DATUM
                     CHANGING PAR_DAY_NAME.
  clear par_day_name.
  CALL FUNCTION ’DATE_TO_DAY’
    EXPORTING
      DATE          = par_datum
    IMPORTING
      WEEKDAY       = par_day_name
            .  

When you want to retrieve the data that record in long text on selected document for show in ABAP report, you can apply function module "READ_TEXT".

Example

        DATA: I_LINE   LIKE TLINE  OCCURS 0 WITH HEADER LINE.
        CALL FUNCTION ’READ_TEXT’
             EXPORTING
                  ID                      = ’Z002’
                  LANGUAGE                = SY-LANGU
                  NAME                    = LV_NAME
                  OBJECT                  = ’VBBK’
             TABLES
                  LINES                   = I_LINE    "Long text
             EXCEPTIONS
                  ID                      = 1
                  LANGUAGE                = 2
                  NAME                    = 3
                  NOT_FOUND               = 4
                  OBJECT                  = 5
                  REFERENCE_CHECK         = 6
                  WRONG_ACCESS_TO_ARCHIVE = 7
                  OTHERS                  = 8.  

Format     Description
*           Default paragraph
Blank       Continuous text

=           Extended line 
(           Raw line
/           Line feed
/=          Line feed and extended line
/(          Line feed and raw line
/:          Command line
/*          Comment line
/E          Text element

In SAPscript, you can ignore conversion routines of this symbol by this option.

Syntax

&VAR(K)&

Option       Description
+n           Offset
(n)          Symbol Length
(S)          Without the Leading Sign
(<)          Move Sign to Left
(>)          Move Sign to Right
(Z)          Without the Leading Zeros
(C)          Condense Space
(.n)         Number of Decimal Places
(T)          Without the Separator for ’Thousands’
(En)         Exponent for Floating Numbers
(R)          Right-Justified Output
(Ff)         Replace Leading Spaces by Character
(I)          Suppress Output of Initial Value
(K)          Ignore Conversion Routines