ABAP Select data from SAP table EAMS3_S_NTF_MASS_CHANGE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EAMS3_S_NTF_MASS_CHANGE 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 EAMS3_S_NTF_MASS_CHANGE. 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 EAMS3_S_NTF_MASS_CHANGE 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_EAMS3_S_NTF_MASS_CHANGE TYPE STANDARD TABLE OF EAMS3_S_NTF_MASS_CHANGE,
      WA_EAMS3_S_NTF_MASS_CHANGE TYPE EAMS3_S_NTF_MASS_CHANGE,
      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: <EAMS3_S_NTF_MASS_CHANGE> TYPE EAMS3_S_NTF_MASS_CHANGE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EAMS3_S_NTF_MASS_CHANGE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EAMS3_S_NTF_MASS_CHANGE
  INTO TABLE IT_EAMS3_S_NTF_MASS_CHANGE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAMS3_S_NTF_MASS_CHANGE
*  INTO TABLE @DATA(IT_EAMS3_S_NTF_MASS_CHANGE2).
*--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_EAMS3_S_NTF_MASS_CHANGE INDEX 1 INTO DATA(WA_EAMS3_S_NTF_MASS_CHANGE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EAMS3_S_NTF_MASS_CHANGE ASSIGNING <EAMS3_S_NTF_MASS_CHANGE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAMS3_S_NTF_MASS_CHANGE>-DUMMY_GENE = 1.
<EAMS3_S_NTF_MASS_CHANGE>-QMTXT_GENE = 1.
<EAMS3_S_NTF_MASS_CHANGE>-IWERK_GENE = 1.
<EAMS3_S_NTF_MASS_CHANGE>-INGRP_GENE = 1.
<EAMS3_S_NTF_MASS_CHANGE>-QMNAM_GENE = 1.

ENDLOOP.

LOOP AT IT_EAMS3_S_NTF_MASS_CHANGE INTO WA_EAMS3_S_NTF_MASS_CHANGE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAMS3_S_NTF_MASS_CHANGE-QMDAT_GENE, sy-vline,
  WA_EAMS3_S_NTF_MASS_CHANGE-MZEIT_GENE, sy-vline,
  WA_EAMS3_S_NTF_MASS_CHANGE-QMGRP_GENE, sy-vline,
  WA_EAMS3_S_NTF_MASS_CHANGE-QMCOD_GENE, sy-vline,
  WA_EAMS3_S_NTF_MASS_CHANGE-ARBPL_GENE, sy-vline,
  WA_EAMS3_S_NTF_MASS_CHANGE-ARBPLWERK_GENE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAMS3_S_NTF_MASS_CHANGE 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_EAMS3_S_NTF_MASS_CHANGE 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_EAMS3_S_NTF_MASS_CHANGE INTO WA_EAMS3_S_NTF_MASS_CHANGE.


*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 EQUNR_REFE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EAMS3_S_NTF_MASS_CHANGE-EQUNR_REFE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS3_S_NTF_MASS_CHANGE-EQUNR_REFE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLNR_REFE
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_EAMS3_S_NTF_MASS_CHANGE-TPLNR_REFE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS3_S_NTF_MASS_CHANGE-TPLNR_REFE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field BAUTL_REFE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EAMS3_S_NTF_MASS_CHANGE-BAUTL_REFE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS3_S_NTF_MASS_CHANGE-BAUTL_REFE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERIALNR_REFE
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EAMS3_S_NTF_MASS_CHANGE-SERIALNR_REFE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS3_S_NTF_MASS_CHANGE-SERIALNR_REFE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR_REFE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EAMS3_S_NTF_MASS_CHANGE-MATNR_REFE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS3_S_NTF_MASS_CHANGE-MATNR_REFE.
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_EAMS3_S_NTF_MASS_CHANGE_STR, 
DUMMY_GENE TYPE STRING,
QMTXT_GENE TYPE STRING,
IWERK_GENE TYPE STRING,
INGRP_GENE TYPE STRING,
QMNAM_GENE TYPE STRING,
QMDAT_GENE TYPE STRING,
MZEIT_GENE TYPE STRING,
QMGRP_GENE TYPE STRING,
QMCOD_GENE TYPE STRING,
ARBPL_GENE TYPE STRING,
ARBPLWERK_GENE TYPE STRING,
DUMMY_REFE TYPE STRING,
EQUNR_REFE TYPE STRING,
TPLNR_REFE TYPE STRING,
BAUTL_REFE TYPE STRING,
SERIALNR_REFE TYPE STRING,
MATNR_REFE TYPE STRING,
DEVICEID_REFE TYPE STRING,
DUMMY_DEAD TYPE STRING,
PRIOK_DEAD TYPE STRING,
STRMN_DEAD TYPE STRING,
STRUR_DEAD TYPE STRING,
LTRMN_DEAD TYPE STRING,
LTRUR_DEAD TYPE STRING,
DUMMY_BREA TYPE STRING,
MSAUS_BREA TYPE STRING,
AUSVN_BREA TYPE STRING,
AUZTV_BREA TYPE STRING,
AUSBS_BREA TYPE STRING,
AUZTB_BREA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAMS3_S_NTF_MASS_CHANGE_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_EAMS3_S_NTF_MASS_CHANGE_STR-DUMMY_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-QMTXT_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-IWERK_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-INGRP_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-QMNAM_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-QMDAT_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-MZEIT_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-QMGRP_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-QMCOD_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-ARBPL_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-ARBPLWERK_GENE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-DUMMY_REFE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-EQUNR_REFE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-TPLNR_REFE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-BAUTL_REFE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-SERIALNR_REFE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-MATNR_REFE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-DEVICEID_REFE sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-DUMMY_DEAD sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-PRIOK_DEAD sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-STRMN_DEAD sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-STRUR_DEAD sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-LTRMN_DEAD sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-LTRUR_DEAD sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-DUMMY_BREA sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-MSAUS_BREA sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-AUSVN_BREA sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-AUZTV_BREA sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-AUSBS_BREA sy-vline 
WA_EAMS3_S_NTF_MASS_CHANGE_STR-AUZTB_BREA sy-vline      INTO ld_text SEPARATED BY SPACE.

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