ABAP Select data from SAP table EHSWAS_MN_PRI_DISP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EHSWAS_MN_PRI_DISP 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 EHSWAS_MN_PRI_DISP. 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 EHSWAS_MN_PRI_DISP 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_EHSWAS_MN_PRI_DISP TYPE STANDARD TABLE OF EHSWAS_MN_PRI_DISP,
      WA_EHSWAS_MN_PRI_DISP TYPE EHSWAS_MN_PRI_DISP,
      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: <EHSWAS_MN_PRI_DISP> TYPE EHSWAS_MN_PRI_DISP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHSWAS_MN_PRI_DISP
*  INTO TABLE @DATA(IT_EHSWAS_MN_PRI_DISP2).
*--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_EHSWAS_MN_PRI_DISP INDEX 1 INTO DATA(WA_EHSWAS_MN_PRI_DISP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHSWAS_MN_PRI_DISP>-MNBPIDINT = 1.
<EHSWAS_MN_PRI_DISP>-MNBPIDC = 1.
<EHSWAS_MN_PRI_DISP>-MNBPIDS = 1.
<EHSWAS_MN_PRI_DISP>-MNDAT = 1.
<EHSWAS_MN_PRI_DISP>-MNBPORDNO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHSWAS_MN_PRI_DISP-NAME1, sy-vline,
  WA_EHSWAS_MN_PRI_DISP-NAME2, sy-vline,
  WA_EHSWAS_MN_PRI_DISP-NAME3, sy-vline,
  WA_EHSWAS_MN_PRI_DISP-NAME4, sy-vline,
  WA_EHSWAS_MN_PRI_DISP-CITY1, sy-vline,
  WA_EHSWAS_MN_PRI_DISP-CITY2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHSWAS_MN_PRI_DISP 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_EHSWAS_MN_PRI_DISP 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_EHSWAS_MN_PRI_DISP INTO WA_EHSWAS_MN_PRI_DISP.


*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 ALPHA, internal->external for field MNBPIDINT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHSWAS_MN_PRI_DISP-MNBPIDINT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHSWAS_MN_PRI_DISP-MNBPIDINT.
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_EHSWAS_MN_PRI_DISP_STR, 
MNBPIDINT TYPE STRING,
MNBPIDC TYPE STRING,
MNBPIDS TYPE STRING,
MNDAT TYPE STRING,
MNBPORDNO TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
CITY1 TYPE STRING,
CITY2 TYPE STRING,
POST_CODE1 TYPE STRING,
POST_CODE2 TYPE STRING,
POST_CODE3 TYPE STRING,
PO_BOX TYPE STRING,
PO_BOX_LOC TYPE STRING,
STREET TYPE STRING,
HOUSE_NUM1 TYPE STRING,
STR_SUPPL1 TYPE STRING,
STR_SUPPL2 TYPE STRING,
STR_SUPPL3 TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
HOUSE_NUM2 TYPE STRING,
LOCATION TYPE STRING,
TEL_NUMBER TYPE STRING,
TEL_EXTENS TYPE STRING,
FAX_NUMBER TYPE STRING,
FAX_EXTENS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHSWAS_MN_PRI_DISP_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_EHSWAS_MN_PRI_DISP_STR-MNBPIDINT sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-MNBPIDC sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-MNBPIDS sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-MNDAT sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-MNBPORDNO sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-NAME1 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-NAME2 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-NAME3 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-NAME4 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-CITY1 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-CITY2 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-POST_CODE1 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-POST_CODE2 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-POST_CODE3 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-PO_BOX sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-PO_BOX_LOC sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-STREET sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-HOUSE_NUM1 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-STR_SUPPL1 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-STR_SUPPL2 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-STR_SUPPL3 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-COUNTRY sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-REGION sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-HOUSE_NUM2 sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-LOCATION sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-TEL_NUMBER sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-TEL_EXTENS sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-FAX_NUMBER sy-vline 
WA_EHSWAS_MN_PRI_DISP_STR-FAX_EXTENS sy-vline      INTO ld_text SEPARATED BY SPACE.

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