ABAP Select data from SAP table EAM_CC4_S_MASS_OPER_EXT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EAM_CC4_S_MASS_OPER_EXT 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 EAM_CC4_S_MASS_OPER_EXT. 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 EAM_CC4_S_MASS_OPER_EXT 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_EAM_CC4_S_MASS_OPER_EXT TYPE STANDARD TABLE OF EAM_CC4_S_MASS_OPER_EXT,
      WA_EAM_CC4_S_MASS_OPER_EXT TYPE EAM_CC4_S_MASS_OPER_EXT,
      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: <EAM_CC4_S_MASS_OPER_EXT> TYPE EAM_CC4_S_MASS_OPER_EXT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EAM_CC4_S_MASS_OPER_EXT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EAM_CC4_S_MASS_OPER_EXT
  INTO TABLE IT_EAM_CC4_S_MASS_OPER_EXT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAM_CC4_S_MASS_OPER_EXT
*  INTO TABLE @DATA(IT_EAM_CC4_S_MASS_OPER_EXT2).
*--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_EAM_CC4_S_MASS_OPER_EXT INDEX 1 INTO DATA(WA_EAM_CC4_S_MASS_OPER_EXT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EAM_CC4_S_MASS_OPER_EXT ASSIGNING <EAM_CC4_S_MASS_OPER_EXT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAM_CC4_S_MASS_OPER_EXT>-BMVRG = 1.
<EAM_CC4_S_MASS_OPER_EXT>-BMEIH = 1.
<EAM_CC4_S_MASS_OPER_EXT>-PREIS = 1.
<EAM_CC4_S_MASS_OPER_EXT>-PLIFZ = 1.
<EAM_CC4_S_MASS_OPER_EXT>-SAKTO = 1.

ENDLOOP.

LOOP AT IT_EAM_CC4_S_MASS_OPER_EXT INTO WA_EAM_CC4_S_MASS_OPER_EXT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAM_CC4_S_MASS_OPER_EXT-MATKL, sy-vline,
  WA_EAM_CC4_S_MASS_OPER_EXT-WAERS, sy-vline,
  WA_EAM_CC4_S_MASS_OPER_EXT-EKGRP, sy-vline,
  WA_EAM_CC4_S_MASS_OPER_EXT-EKORG, sy-vline,
  WA_EAM_CC4_S_MASS_OPER_EXT-LIFNR, sy-vline,
  WA_EAM_CC4_S_MASS_OPER_EXT-PEINH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAM_CC4_S_MASS_OPER_EXT 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_EAM_CC4_S_MASS_OPER_EXT 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_EAM_CC4_S_MASS_OPER_EXT INTO WA_EAM_CC4_S_MASS_OPER_EXT.


*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 CUNIT, internal->external for field BMEIH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EAM_CC4_S_MASS_OPER_EXT-BMEIH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_CC4_S_MASS_OPER_EXT-BMEIH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EAM_CC4_S_MASS_OPER_EXT-SAKTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_CC4_S_MASS_OPER_EXT-SAKTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EAM_CC4_S_MASS_OPER_EXT-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_CC4_S_MASS_OPER_EXT-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EAM_CC4_S_MASS_OPER_EXT-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAM_CC4_S_MASS_OPER_EXT-EBELN.
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_EAM_CC4_S_MASS_OPER_EXT_STR, 
BMVRG TYPE STRING,
BMEIH TYPE STRING,
PREIS TYPE STRING,
PLIFZ TYPE STRING,
SAKTO TYPE STRING,
MATKL TYPE STRING,
WAERS TYPE STRING,
EKGRP TYPE STRING,
EKORG TYPE STRING,
LIFNR TYPE STRING,
PEINH TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAM_CC4_S_MASS_OPER_EXT_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_EAM_CC4_S_MASS_OPER_EXT_STR-BMVRG sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-BMEIH sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-PREIS sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-PLIFZ sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-SAKTO sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-MATKL sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-WAERS sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-EKGRP sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-EKORG sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-LIFNR sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-PEINH sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-EBELN sy-vline 
WA_EAM_CC4_S_MASS_OPER_EXT_STR-EBELP sy-vline      INTO ld_text SEPARATED BY SPACE.

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