ABAP Select data from SAP table PRSAU_BUF_VIEW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRSAU_BUF_VIEW table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to PRSAU_BUF_VIEW. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the PRSAU_BUF_VIEW table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_PRSAU_BUF_VIEW TYPE STANDARD TABLE OF PRSAU_BUF_VIEW,
      WA_PRSAU_BUF_VIEW TYPE PRSAU_BUF_VIEW,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <PRSAU_BUF_VIEW> TYPE PRSAU_BUF_VIEW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRSAU_BUF_VIEW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRSAU_BUF_VIEW
  INTO TABLE IT_PRSAU_BUF_VIEW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRSAU_BUF_VIEW
*  INTO TABLE @DATA(IT_PRSAU_BUF_VIEW2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_PRSAU_BUF_VIEW INDEX 1 INTO DATA(WA_PRSAU_BUF_VIEW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRSAU_BUF_VIEW ASSIGNING <PRSAU_BUF_VIEW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRSAU_BUF_VIEW>-AREA = 1.
<PRSAU_BUF_VIEW>-SUBID = 1.
<PRSAU_BUF_VIEW>-SLGDATTIM = 1.
<PRSAU_BUF_VIEW>-SLGPROC = 1.
<PRSAU_BUF_VIEW>-SLGMAND = 1.

ENDLOOP.

LOOP AT IT_PRSAU_BUF_VIEW INTO WA_PRSAU_BUF_VIEW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRSAU_BUF_VIEW-SID, sy-vline,
  WA_PRSAU_BUF_VIEW-INSTANCE, sy-vline,
  WA_PRSAU_BUF_VIEW-COUNTER, sy-vline,
  WA_PRSAU_BUF_VIEW-SLGLTRM2, sy-vline,
  WA_PRSAU_BUF_VIEW-SLGUSER, sy-vline,
  WA_PRSAU_BUF_VIEW-SLGTC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRSAU_BUF_VIEW you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_PRSAU_BUF_VIEW TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_PRSAU_BUF_VIEW INTO WA_PRSAU_BUF_VIEW.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit IPADD, internal->external for field TERM_IPV6
CALL FUNCTION 'CONVERSION_EXIT_IPADD_OUTPUT'
  EXPORTING
    input =                      WA_PRSAU_BUF_VIEW-TERM_IPV6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRSAU_BUF_VIEW-TERM_IPV6.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PRSAU_BUF_VIEW_STR, 
AREA TYPE STRING,
SUBID TYPE STRING,
SLGDATTIM TYPE STRING,
SLGPROC TYPE STRING,
SLGMAND TYPE STRING,
SID TYPE STRING,
INSTANCE TYPE STRING,
COUNTER TYPE STRING,
SLGLTRM2 TYPE STRING,
SLGUSER TYPE STRING,
SLGTC TYPE STRING,
SLGREPNA TYPE STRING,
TERM_IPV6 TYPE STRING,
SAL_DATA TYPE STRING,
MFD_FLAG TYPE STRING,
ALERT_FLAG TYPE STRING,
SUBCLASID TYPE STRING,
SEVERITY TYPE STRING,
TXT TYPE STRING,
VAR_SET_1 TYPE STRING,
MSG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRSAU_BUF_VIEW_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_PRSAU_BUF_VIEW_STR-AREA sy-vline 
WA_PRSAU_BUF_VIEW_STR-SUBID sy-vline 
WA_PRSAU_BUF_VIEW_STR-SLGDATTIM sy-vline 
WA_PRSAU_BUF_VIEW_STR-SLGPROC sy-vline 
WA_PRSAU_BUF_VIEW_STR-SLGMAND sy-vline 
WA_PRSAU_BUF_VIEW_STR-SID sy-vline 
WA_PRSAU_BUF_VIEW_STR-INSTANCE sy-vline 
WA_PRSAU_BUF_VIEW_STR-COUNTER sy-vline 
WA_PRSAU_BUF_VIEW_STR-SLGLTRM2 sy-vline 
WA_PRSAU_BUF_VIEW_STR-SLGUSER sy-vline 
WA_PRSAU_BUF_VIEW_STR-SLGTC sy-vline 
WA_PRSAU_BUF_VIEW_STR-SLGREPNA sy-vline 
WA_PRSAU_BUF_VIEW_STR-TERM_IPV6 sy-vline 
WA_PRSAU_BUF_VIEW_STR-SAL_DATA sy-vline 
WA_PRSAU_BUF_VIEW_STR-MFD_FLAG sy-vline 
WA_PRSAU_BUF_VIEW_STR-ALERT_FLAG sy-vline 
WA_PRSAU_BUF_VIEW_STR-SUBCLASID sy-vline 
WA_PRSAU_BUF_VIEW_STR-SEVERITY sy-vline 
WA_PRSAU_BUF_VIEW_STR-TXT sy-vline 
WA_PRSAU_BUF_VIEW_STR-VAR_SET_1 sy-vline 
WA_PRSAU_BUF_VIEW_STR-MSG sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.