ABAP Select data from SAP table EWM_MU_I10_MRDEV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EWM_MU_I10_MRDEV 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 EWM_MU_I10_MRDEV. 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 EWM_MU_I10_MRDEV 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_EWM_MU_I10_MRDEV TYPE STANDARD TABLE OF EWM_MU_I10_MRDEV,
      WA_EWM_MU_I10_MRDEV TYPE EWM_MU_I10_MRDEV,
      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: <EWM_MU_I10_MRDEV> TYPE EWM_MU_I10_MRDEV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EWM_MU_I10_MRDEV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EWM_MU_I10_MRDEV
  INTO TABLE IT_EWM_MU_I10_MRDEV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWM_MU_I10_MRDEV
*  INTO TABLE @DATA(IT_EWM_MU_I10_MRDEV2).
*--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_EWM_MU_I10_MRDEV INDEX 1 INTO DATA(WA_EWM_MU_I10_MRDEV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EWM_MU_I10_MRDEV ASSIGNING <EWM_MU_I10_MRDEV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWM_MU_I10_MRDEV>-AUSBAU = 1.
<EWM_MU_I10_MRDEV>-GERWECHS = 1.
<EWM_MU_I10_MRDEV>-EQUNRNEU = 1.
<EWM_MU_I10_MRDEV>-EQUNRALT = 1.
<EWM_MU_I10_MRDEV>-MATNR = 1.

ENDLOOP.

LOOP AT IT_EWM_MU_I10_MRDEV INTO WA_EWM_MU_I10_MRDEV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWM_MU_I10_MRDEV-GERAETNEU, sy-vline,
  WA_EWM_MU_I10_MRDEV-MATNRALT, sy-vline,
  WA_EWM_MU_I10_MRDEV-GERAETALT, sy-vline,
  WA_EWM_MU_I10_MRDEV-MOVE_TYPE, sy-vline,
  WA_EWM_MU_I10_MRDEV-MOVE_TYPE_O, sy-vline,
  WA_EWM_MU_I10_MRDEV-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWM_MU_I10_MRDEV 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_EWM_MU_I10_MRDEV 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_EWM_MU_I10_MRDEV INTO WA_EWM_MU_I10_MRDEV.


*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 EQUNRNEU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-EQUNRNEU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-EQUNRNEU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNRALT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-EQUNRALT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-EQUNRALT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field GERAETNEU
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-GERAETNEU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-GERAETNEU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNRALT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-MATNRALT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-MATNRALT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field GERAETALT
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-GERAETALT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-GERAETALT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PREISKLAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-PREISKLAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-PREISKLAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field WANDNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-WANDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-WANDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field WANDNRE
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-WANDNRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-WANDNRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field DRUCKNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-DRUCKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-DRUCKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field DRUCKNRE
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-DRUCKNRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-DRUCKNRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field TRENR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-TRENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-TRENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field TRENRE
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWM_MU_I10_MRDEV-TRENRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWM_MU_I10_MRDEV-TRENRE.
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_EWM_MU_I10_MRDEV_STR, 
AUSBAU TYPE STRING,
GERWECHS TYPE STRING,
EQUNRNEU TYPE STRING,
EQUNRALT TYPE STRING,
MATNR TYPE STRING,
GERAETNEU TYPE STRING,
MATNRALT TYPE STRING,
GERAETALT TYPE STRING,
MOVE_TYPE TYPE STRING,
MOVE_TYPE_O TYPE STRING,
PLANT TYPE STRING,
PLANT_O TYPE STRING,
STGE_LOC TYPE STRING,
STGE_LOG_O TYPE STRING,
PRIMWNR1 TYPE STRING,
SEKWNR1 TYPE STRING,
PRIMWNR2 TYPE STRING,
SEKWNR2 TYPE STRING,
PREISKLAG TYPE STRING,
GVERRECHG TYPE STRING,
TARIFARTG TYPE STRING,
KONDIGRG TYPE STRING,
WANDNR TYPE STRING,
WANDNRE TYPE STRING,
ABRFAKT TYPE STRING,
DRUCKNR TYPE STRING,
DRUCKNRE TYPE STRING,
MESSDRCK TYPE STRING,
TRENR TYPE STRING,
TRENRE TYPE STRING,
PROGT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWM_MU_I10_MRDEV_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_EWM_MU_I10_MRDEV_STR-AUSBAU sy-vline 
WA_EWM_MU_I10_MRDEV_STR-GERWECHS sy-vline 
WA_EWM_MU_I10_MRDEV_STR-EQUNRNEU sy-vline 
WA_EWM_MU_I10_MRDEV_STR-EQUNRALT sy-vline 
WA_EWM_MU_I10_MRDEV_STR-MATNR sy-vline 
WA_EWM_MU_I10_MRDEV_STR-GERAETNEU sy-vline 
WA_EWM_MU_I10_MRDEV_STR-MATNRALT sy-vline 
WA_EWM_MU_I10_MRDEV_STR-GERAETALT sy-vline 
WA_EWM_MU_I10_MRDEV_STR-MOVE_TYPE sy-vline 
WA_EWM_MU_I10_MRDEV_STR-MOVE_TYPE_O sy-vline 
WA_EWM_MU_I10_MRDEV_STR-PLANT sy-vline 
WA_EWM_MU_I10_MRDEV_STR-PLANT_O sy-vline 
WA_EWM_MU_I10_MRDEV_STR-STGE_LOC sy-vline 
WA_EWM_MU_I10_MRDEV_STR-STGE_LOG_O sy-vline 
WA_EWM_MU_I10_MRDEV_STR-PRIMWNR1 sy-vline 
WA_EWM_MU_I10_MRDEV_STR-SEKWNR1 sy-vline 
WA_EWM_MU_I10_MRDEV_STR-PRIMWNR2 sy-vline 
WA_EWM_MU_I10_MRDEV_STR-SEKWNR2 sy-vline 
WA_EWM_MU_I10_MRDEV_STR-PREISKLAG sy-vline 
WA_EWM_MU_I10_MRDEV_STR-GVERRECHG sy-vline 
WA_EWM_MU_I10_MRDEV_STR-TARIFARTG sy-vline 
WA_EWM_MU_I10_MRDEV_STR-KONDIGRG sy-vline 
WA_EWM_MU_I10_MRDEV_STR-WANDNR sy-vline 
WA_EWM_MU_I10_MRDEV_STR-WANDNRE sy-vline 
WA_EWM_MU_I10_MRDEV_STR-ABRFAKT sy-vline 
WA_EWM_MU_I10_MRDEV_STR-DRUCKNR sy-vline 
WA_EWM_MU_I10_MRDEV_STR-DRUCKNRE sy-vline 
WA_EWM_MU_I10_MRDEV_STR-MESSDRCK sy-vline 
WA_EWM_MU_I10_MRDEV_STR-TRENR sy-vline 
WA_EWM_MU_I10_MRDEV_STR-TRENRE sy-vline 
WA_EWM_MU_I10_MRDEV_STR-PROGT sy-vline      INTO ld_text SEPARATED BY SPACE.

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