ABAP Select data from SAP table WBHP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WBHP
*  INTO TABLE @DATA(IT_WBHP2).
*--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_WBHP INDEX 1 INTO DATA(WA_WBHP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WBHP>-MANDT = 1.
<WBHP>-TKONN = 1.
<WBHP>-TPOSN = 1.
<WBHP>-TPOSN_SUB = 1.
<WBHP>-PARVW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WBHP-PARZA, sy-vline,
  WA_WBHP-ERNAM, sy-vline,
  WA_WBHP-ERDAT, sy-vline,
  WA_WBHP-LIFNR, sy-vline,
  WA_WBHP-KUNNR, sy-vline,
  WA_WBHP-DEFPA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WBHP 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_WBHP 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_WBHP INTO WA_WBHP.


*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 TKONN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBHP-TKONN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBHP-TKONN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_WBHP-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBHP-PARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBHP-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBHP-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBHP-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBHP-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBHP-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBHP-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ASSIGNED_BP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBHP-ASSIGNED_BP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBHP-ASSIGNED_BP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBHP-ADRNP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBHP-ADRNP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BP_REF_ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBHP-BP_REF_ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBHP-BP_REF_ADRNR.
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_WBHP_STR, 
MANDT TYPE STRING,
TKONN TYPE STRING,
TPOSN TYPE STRING,
TPOSN_SUB TYPE STRING,
PARVW TYPE STRING,
PARZA TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
DEFPA TYPE STRING,
PARNR TYPE STRING,
PERNR TYPE STRING,
ADRNR TYPE STRING,
ADRDA TYPE STRING,
_DATAAGING TYPE STRING,
ASSIGNED_BP TYPE STRING,
ADDR_OPERATION TYPE STRING,
ADDR_TYPE TYPE STRING,
ADRNP TYPE STRING,
BP_REF_ADRNR TYPE STRING,
HISTUNR TYPE STRING,
STCD1 TYPE STRING,
STCD2 TYPE STRING,
STCD3 TYPE STRING,
STCD4 TYPE STRING,
STKZN TYPE STRING,
STCDT TYPE STRING,
J_1KFREPRE TYPE STRING,
J_1KFTBUS TYPE STRING,
J_1KFTIND TYPE STRING,
ABLAD TYPE STRING,
HITYP_SD TYPE STRING,
HITYP_MM TYPE STRING,
PRFRE TYPE STRING,
BOKRE TYPE STRING,
BOLRE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WBHP_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_WBHP_STR-MANDT sy-vline 
WA_WBHP_STR-TKONN sy-vline 
WA_WBHP_STR-TPOSN sy-vline 
WA_WBHP_STR-TPOSN_SUB sy-vline 
WA_WBHP_STR-PARVW sy-vline 
WA_WBHP_STR-PARZA sy-vline 
WA_WBHP_STR-ERNAM sy-vline 
WA_WBHP_STR-ERDAT sy-vline 
WA_WBHP_STR-LIFNR sy-vline 
WA_WBHP_STR-KUNNR sy-vline 
WA_WBHP_STR-DEFPA sy-vline 
WA_WBHP_STR-PARNR sy-vline 
WA_WBHP_STR-PERNR sy-vline 
WA_WBHP_STR-ADRNR sy-vline 
WA_WBHP_STR-ADRDA sy-vline 
WA_WBHP_STR-_DATAAGING sy-vline 
WA_WBHP_STR-ASSIGNED_BP sy-vline 
WA_WBHP_STR-ADDR_OPERATION sy-vline 
WA_WBHP_STR-ADDR_TYPE sy-vline 
WA_WBHP_STR-ADRNP sy-vline 
WA_WBHP_STR-BP_REF_ADRNR sy-vline 
WA_WBHP_STR-HISTUNR sy-vline 
WA_WBHP_STR-STCD1 sy-vline 
WA_WBHP_STR-STCD2 sy-vline 
WA_WBHP_STR-STCD3 sy-vline 
WA_WBHP_STR-STCD4 sy-vline 
WA_WBHP_STR-STKZN sy-vline 
WA_WBHP_STR-STCDT sy-vline 
WA_WBHP_STR-J_1KFREPRE sy-vline 
WA_WBHP_STR-J_1KFTBUS sy-vline 
WA_WBHP_STR-J_1KFTIND sy-vline 
WA_WBHP_STR-ABLAD sy-vline 
WA_WBHP_STR-HITYP_SD sy-vline 
WA_WBHP_STR-HITYP_MM sy-vline 
WA_WBHP_STR-PRFRE sy-vline 
WA_WBHP_STR-BOKRE sy-vline 
WA_WBHP_STR-BOLRE sy-vline      INTO ld_text SEPARATED BY SPACE.

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