ABAP Select data from SAP table CMD_MATERIAL_S_MDMA_X into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMD_MATERIAL_S_MDMA_X
*  INTO TABLE @DATA(IT_CMD_MATERIAL_S_MDMA_X2).
*--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_CMD_MATERIAL_S_MDMA_X INDEX 1 INTO DATA(WA_CMD_MATERIAL_S_MDMA_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMD_MATERIAL_S_MDMA_X>-MATNR = 1.
<CMD_MATERIAL_S_MDMA_X>-BERID = 1.
<CMD_MATERIAL_S_MDMA_X>-WERKS = 1.
<CMD_MATERIAL_S_MDMA_X>-DISPR = 1.
<CMD_MATERIAL_S_MDMA_X>-DISMM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMD_MATERIAL_S_MDMA_X-DISPO, sy-vline,
  WA_CMD_MATERIAL_S_MDMA_X-DISGR, sy-vline,
  WA_CMD_MATERIAL_S_MDMA_X-MINBE, sy-vline,
  WA_CMD_MATERIAL_S_MDMA_X-LFRHY, sy-vline,
  WA_CMD_MATERIAL_S_MDMA_X-FXHOR, sy-vline,
  WA_CMD_MATERIAL_S_MDMA_X-DISLS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMD_MATERIAL_S_MDMA_X 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_CMD_MATERIAL_S_MDMA_X 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_CMD_MATERIAL_S_MDMA_X INTO WA_CMD_MATERIAL_S_MDMA_X.


*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_CMD_MATERIAL_S_MDMA_X-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMD_MATERIAL_S_MDMA_X-MATNR.
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_CMD_MATERIAL_S_MDMA_X_STR, 
MATNR TYPE STRING,
BERID TYPE STRING,
WERKS TYPE STRING,
DISPR TYPE STRING,
DISMM TYPE STRING,
DISPO TYPE STRING,
DISGR TYPE STRING,
MINBE TYPE STRING,
LFRHY TYPE STRING,
FXHOR TYPE STRING,
DISLS TYPE STRING,
RDPRF TYPE STRING,
BSTRF TYPE STRING,
BSTMI TYPE STRING,
BSTMA TYPE STRING,
MABST TYPE STRING,
TAKZT TYPE STRING,
AUSSS TYPE STRING,
SOBSL TYPE STRING,
LGPRO TYPE STRING,
LGFSB TYPE STRING,
MRPPP TYPE STRING,
EISBE TYPE STRING,
RWPRO TYPE STRING,
SHZET TYPE STRING,
BSTFE TYPE STRING,
LOSFX TYPE STRING,
LAGPR TYPE STRING,
LGRAD TYPE STRING,
PROPR TYPE STRING,
VRBMT TYPE STRING,
VRBDB TYPE STRING,
VRBDT TYPE STRING,
VRBFK TYPE STRING,
LOEKZ TYPE STRING,
SHPRO TYPE STRING,
AHDIS TYPE STRING,
AUTRU TYPE STRING,
PSTAT TYPE STRING,
KZKFK TYPE STRING,
SHFLG TYPE STRING,
APOKZ TYPE STRING,
PLIFZ TYPE STRING,
PLIFZX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMD_MATERIAL_S_MDMA_X_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_CMD_MATERIAL_S_MDMA_X_STR-MATNR sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-BERID sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-WERKS sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-DISPR sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-DISMM sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-DISPO sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-DISGR sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-MINBE sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-LFRHY sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-FXHOR sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-DISLS sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-RDPRF sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-BSTRF sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-BSTMI sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-BSTMA sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-MABST sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-TAKZT sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-AUSSS sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-SOBSL sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-LGPRO sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-LGFSB sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-MRPPP sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-EISBE sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-RWPRO sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-SHZET sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-BSTFE sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-LOSFX sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-LAGPR sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-LGRAD sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-PROPR sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-VRBMT sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-VRBDB sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-VRBDT sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-VRBFK sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-LOEKZ sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-SHPRO sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-AHDIS sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-AUTRU sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-PSTAT sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-KZKFK sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-SHFLG sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-APOKZ sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-PLIFZ sy-vline 
WA_CMD_MATERIAL_S_MDMA_X_STR-PLIFZX sy-vline      INTO ld_text SEPARATED BY SPACE.

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