ABAP Select data from SAP table PWBHIVH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PWBHIVH
*  INTO TABLE @DATA(IT_PWBHIVH2).
*--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_PWBHIVH INDEX 1 INTO DATA(WA_PWBHIVH2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PWBHIVH-WERKS, sy-vline,
  WA_PWBHIVH-LGORT, sy-vline,
  WA_PWBHIVH-ARKTX, sy-vline,
  WA_PWBHIVH-CHARG, sy-vline,
  WA_PWBHIVH-PORTFOLIO, sy-vline,
  WA_PWBHIVH-PORTFOLIO_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PWBHIVH 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_PWBHIVH 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_PWBHIVH INTO WA_PWBHIVH.


*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_PWBHIVH-TKONN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBHIVH-TKONN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PWBHIVH-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBHIVH-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ELIFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PWBHIVH-ELIFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBHIVH-ELIFN.
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_PWBHIVH_STR, 
MANDT TYPE STRING,
TKONN TYPE STRING,
TPOSN TYPE STRING,
TPOSN_SUB TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
ARKTX TYPE STRING,
CHARG TYPE STRING,
PORTFOLIO TYPE STRING,
PORTFOLIO_DATE TYPE STRING,
TKONN_EX TYPE STRING,
TCTYP TYPE STRING,
TKSACHB TYPE STRING,
KUNNR TYPE STRING,
ELIFN TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
TCCAT TYPE STRING,
WBHD_TPOSN TYPE STRING,
CUSTOMER_BEGRU TYPE STRING,
VENDOR_BEGRU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PWBHIVH_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_PWBHIVH_STR-MANDT sy-vline 
WA_PWBHIVH_STR-TKONN sy-vline 
WA_PWBHIVH_STR-TPOSN sy-vline 
WA_PWBHIVH_STR-TPOSN_SUB sy-vline 
WA_PWBHIVH_STR-MATNR sy-vline 
WA_PWBHIVH_STR-WERKS sy-vline 
WA_PWBHIVH_STR-LGORT sy-vline 
WA_PWBHIVH_STR-ARKTX sy-vline 
WA_PWBHIVH_STR-CHARG sy-vline 
WA_PWBHIVH_STR-PORTFOLIO sy-vline 
WA_PWBHIVH_STR-PORTFOLIO_DATE sy-vline 
WA_PWBHIVH_STR-TKONN_EX sy-vline 
WA_PWBHIVH_STR-TCTYP sy-vline 
WA_PWBHIVH_STR-TKSACHB sy-vline 
WA_PWBHIVH_STR-KUNNR sy-vline 
WA_PWBHIVH_STR-ELIFN sy-vline 
WA_PWBHIVH_STR-VKORG sy-vline 
WA_PWBHIVH_STR-VTWEG sy-vline 
WA_PWBHIVH_STR-SPART sy-vline 
WA_PWBHIVH_STR-EKORG sy-vline 
WA_PWBHIVH_STR-EKGRP sy-vline 
WA_PWBHIVH_STR-TCCAT sy-vline 
WA_PWBHIVH_STR-WBHD_TPOSN sy-vline 
WA_PWBHIVH_STR-CUSTOMER_BEGRU sy-vline 
WA_PWBHIVH_STR-VENDOR_BEGRU sy-vline      INTO ld_text SEPARATED BY SPACE.

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