ABAP Select data from SAP table E2WBB02 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E2WBB02 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 E2WBB02. 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 E2WBB02 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_E2WBB02 TYPE STANDARD TABLE OF E2WBB02,
      WA_E2WBB02 TYPE E2WBB02,
      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: <E2WBB02> TYPE E2WBB02.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E2WBB02.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E2WBB02
  INTO TABLE IT_E2WBB02.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E2WBB02
*  INTO TABLE @DATA(IT_E2WBB022).
*--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_E2WBB02 INDEX 1 INTO DATA(WA_E2WBB022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E2WBB02 ASSIGNING <E2WBB02>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E2WBB02>-LAEDA = 1.
<E2WBB02>-LIQDT = 1.
<E2WBB02>-LVORM = 1.
<E2WBB02>-BBTYP = 1.
<E2WBB02>-VERNR = 1.

ENDLOOP.

LOOP AT IT_E2WBB02 INTO WA_E2WBB02.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E2WBB02-MTART, sy-vline,
  WA_E2WBB02-MATKL, sy-vline,
  WA_E2WBB02-ABTNR, sy-vline,
  WA_E2WBB02-ATTYP, sy-vline,
  WA_E2WBB02-SATNR, sy-vline,
  WA_E2WBB02-BASME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E2WBB02 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_E2WBB02 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_E2WBB02 INTO WA_E2WBB02.


*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 GJAHR, internal->external for field SAISJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_E2WBB02-SAISJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E2WBB02-SAISJ.
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_E2WBB02_STR, 
LAEDA TYPE STRING,
LIQDT TYPE STRING,
LVORM TYPE STRING,
BBTYP TYPE STRING,
VERNR TYPE STRING,
MTART TYPE STRING,
MATKL TYPE STRING,
ABTNR TYPE STRING,
ATTYP TYPE STRING,
SATNR TYPE STRING,
BASME TYPE STRING,
PRDHA TYPE STRING,
PLGTP TYPE STRING,
SERVV TYPE STRING,
SAISO TYPE STRING,
SAISJ TYPE STRING,
MHDHB TYPE STRING,
MHDRZ TYPE STRING,
MHDLP TYPE STRING,
MLGUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E2WBB02_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_E2WBB02_STR-LAEDA sy-vline 
WA_E2WBB02_STR-LIQDT sy-vline 
WA_E2WBB02_STR-LVORM sy-vline 
WA_E2WBB02_STR-BBTYP sy-vline 
WA_E2WBB02_STR-VERNR sy-vline 
WA_E2WBB02_STR-MTART sy-vline 
WA_E2WBB02_STR-MATKL sy-vline 
WA_E2WBB02_STR-ABTNR sy-vline 
WA_E2WBB02_STR-ATTYP sy-vline 
WA_E2WBB02_STR-SATNR sy-vline 
WA_E2WBB02_STR-BASME sy-vline 
WA_E2WBB02_STR-PRDHA sy-vline 
WA_E2WBB02_STR-PLGTP sy-vline 
WA_E2WBB02_STR-SERVV sy-vline 
WA_E2WBB02_STR-SAISO sy-vline 
WA_E2WBB02_STR-SAISJ sy-vline 
WA_E2WBB02_STR-MHDHB sy-vline 
WA_E2WBB02_STR-MHDRZ sy-vline 
WA_E2WBB02_STR-MHDLP sy-vline 
WA_E2WBB02_STR-MLGUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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