ABAP Select data from SAP table MDG_BS_MAT_S_ES_RESPONSE_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDG_BS_MAT_S_ES_RESPONSE_ATTR
*  INTO TABLE @DATA(IT_MDG_BS_MAT_S_ES_RESPONSE_ATTR2).
*--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_MDG_BS_MAT_S_ES_RESPONSE_ATTR INDEX 1 INTO DATA(WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDG_BS_MAT_S_ES_RESPONSE_ATTR>-MATNR = 1.
<MDG_BS_MAT_S_ES_RESPONSE_ATTR>-MAKTX = 1.
<MDG_BS_MAT_S_ES_RESPONSE_ATTR>-MATKL = 1.
<MDG_BS_MAT_S_ES_RESPONSE_ATTR>-MTART = 1.
<MDG_BS_MAT_S_ES_RESPONSE_ATTR>-MBRSH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR-LABOR, sy-vline,
  WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR-MEINS, sy-vline,
  WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR-EAN11, sy-vline,
  WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR-BISMT, sy-vline,
  WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR-EXTWG, sy-vline,
  WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR-PRDHA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR 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_MDG_BS_MAT_S_ES_RESPONSE_ATTR 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_MDG_BS_MAT_S_ES_RESPONSE_ATTR INTO WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR.


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

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

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR-EAN11.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR-VOLEH.
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_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR, 
MATNR TYPE STRING,
MAKTX TYPE STRING,
MATKL TYPE STRING,
MTART TYPE STRING,
MBRSH TYPE STRING,
LABOR TYPE STRING,
MEINS TYPE STRING,
EAN11 TYPE STRING,
BISMT TYPE STRING,
EXTWG TYPE STRING,
PRDHA TYPE STRING,
WRKST TYPE STRING,
SATNR TYPE STRING,
ZEINR TYPE STRING,
ZEIAR TYPE STRING,
ZEIVR TYPE STRING,
NORMT TYPE STRING,
BEGRU TYPE STRING,
LVORM TYPE STRING,
NUMTP TYPE STRING,
VOLEH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_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_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-MATNR sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-MAKTX sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-MATKL sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-MTART sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-MBRSH sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-LABOR sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-MEINS sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-EAN11 sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-BISMT sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-EXTWG sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-PRDHA sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-WRKST sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-SATNR sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-ZEINR sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-ZEIAR sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-ZEIVR sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-NORMT sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-BEGRU sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-LVORM sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-NUMTP sy-vline 
WA_MDG_BS_MAT_S_ES_RESPONSE_ATTR_STR-VOLEH sy-vline      INTO ld_text SEPARATED BY SPACE.

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