ABAP Select data from SAP table ENT6142 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT6142 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 ENT6142. 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 ENT6142 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_ENT6142 TYPE STANDARD TABLE OF ENT6142,
      WA_ENT6142 TYPE ENT6142,
      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: <ENT6142> TYPE ENT6142.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT6142.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT6142
  INTO TABLE IT_ENT6142.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT6142
*  INTO TABLE @DATA(IT_ENT61422).
*--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_ENT6142 INDEX 1 INTO DATA(WA_ENT61422).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT6142 ASSIGNING <ENT6142>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT6142>-MANDT = 1.
<ENT6142>-BOART = 1.
<ENT6142>-KAPPL = 1.
<ENT6142>-ABTYP = 1.
<ENT6142>-DTVOB = 1.

ENDLOOP.

LOOP AT IT_ENT6142 INTO WA_ENT6142.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT6142-DATVO, sy-vline,
  WA_ENT6142-ZLSCH, sy-vline,
  WA_ENT6142-ABSPZ, sy-vline,
  WA_ENT6142-KOBOG, sy-vline,
  WA_ENT6142-ABWDT, sy-vline,
  WA_ENT6142-NUMKI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT6142 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_ENT6142 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_ENT6142 INTO WA_ENT6142.


*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 AUART, internal->external for field AUART_B1
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_ENT6142-AUART_B1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT6142-AUART_B1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AUART_B2
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_ENT6142-AUART_B2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT6142-AUART_B2.
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_ENT6142_STR, 
MANDT TYPE STRING,
BOART TYPE STRING,
KAPPL TYPE STRING,
ABTYP TYPE STRING,
DTVOB TYPE STRING,
DATVO TYPE STRING,
ZLSCH TYPE STRING,
ABSPZ TYPE STRING,
KOBOG TYPE STRING,
ABWDT TYPE STRING,
NUMKI TYPE STRING,
NUMKE TYPE STRING,
UEVOR_BO TYPE STRING,
AUART_B1 TYPE STRING,
AUART_B2 TYPE STRING,
BOSTA_MIN TYPE STRING,
BOSTA TYPE STRING,
KOULP TYPE STRING,
KOULPERR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT6142_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_ENT6142_STR-MANDT sy-vline 
WA_ENT6142_STR-BOART sy-vline 
WA_ENT6142_STR-KAPPL sy-vline 
WA_ENT6142_STR-ABTYP sy-vline 
WA_ENT6142_STR-DTVOB sy-vline 
WA_ENT6142_STR-DATVO sy-vline 
WA_ENT6142_STR-ZLSCH sy-vline 
WA_ENT6142_STR-ABSPZ sy-vline 
WA_ENT6142_STR-KOBOG sy-vline 
WA_ENT6142_STR-ABWDT sy-vline 
WA_ENT6142_STR-NUMKI sy-vline 
WA_ENT6142_STR-NUMKE sy-vline 
WA_ENT6142_STR-UEVOR_BO sy-vline 
WA_ENT6142_STR-AUART_B1 sy-vline 
WA_ENT6142_STR-AUART_B2 sy-vline 
WA_ENT6142_STR-BOSTA_MIN sy-vline 
WA_ENT6142_STR-BOSTA sy-vline 
WA_ENT6142_STR-KOULP sy-vline 
WA_ENT6142_STR-KOULPERR sy-vline      INTO ld_text SEPARATED BY SPACE.

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