ABAP Select data from SAP table MMPURUI_EBELN_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPURUI_EBELN_STY
*  INTO TABLE @DATA(IT_MMPURUI_EBELN_STY2).
*--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_MMPURUI_EBELN_STY INDEX 1 INTO DATA(WA_MMPURUI_EBELN_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPURUI_EBELN_STY>-EBELN = 1.
<MMPURUI_EBELN_STY>-EKGRP = 1.
<MMPURUI_EBELN_STY>-KDATB = 1.
<MMPURUI_EBELN_STY>-KDATE = 1.
<MMPURUI_EBELN_STY>-BSART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPURUI_EBELN_STY-BSTYP, sy-vline,
  WA_MMPURUI_EBELN_STY-LOEKZ, sy-vline,
  WA_MMPURUI_EBELN_STY-FRGKE, sy-vline,
  WA_MMPURUI_EBELN_STY-KTWRT, sy-vline,
  WA_MMPURUI_EBELN_STY-BEDAT, sy-vline,
  WA_MMPURUI_EBELN_STY-BPRME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPURUI_EBELN_STY 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_MMPURUI_EBELN_STY 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_MMPURUI_EBELN_STY INTO WA_MMPURUI_EBELN_STY.


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

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

*Conversion exit CUNIT, internal->external for field LMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MMPURUI_EBELN_STY-LMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPURUI_EBELN_STY-LMEIN.
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_MMPURUI_EBELN_STY_STR, 
EBELN TYPE STRING,
EKGRP TYPE STRING,
KDATB TYPE STRING,
KDATE TYPE STRING,
BSART TYPE STRING,
BSTYP TYPE STRING,
LOEKZ TYPE STRING,
FRGKE TYPE STRING,
KTWRT TYPE STRING,
BEDAT TYPE STRING,
BPRME TYPE STRING,
PEINH TYPE STRING,
MATKL TYPE STRING,
KNTTP TYPE STRING,
KTMNG TYPE STRING,
LMEIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPURUI_EBELN_STY_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_MMPURUI_EBELN_STY_STR-EBELN sy-vline 
WA_MMPURUI_EBELN_STY_STR-EKGRP sy-vline 
WA_MMPURUI_EBELN_STY_STR-KDATB sy-vline 
WA_MMPURUI_EBELN_STY_STR-KDATE sy-vline 
WA_MMPURUI_EBELN_STY_STR-BSART sy-vline 
WA_MMPURUI_EBELN_STY_STR-BSTYP sy-vline 
WA_MMPURUI_EBELN_STY_STR-LOEKZ sy-vline 
WA_MMPURUI_EBELN_STY_STR-FRGKE sy-vline 
WA_MMPURUI_EBELN_STY_STR-KTWRT sy-vline 
WA_MMPURUI_EBELN_STY_STR-BEDAT sy-vline 
WA_MMPURUI_EBELN_STY_STR-BPRME sy-vline 
WA_MMPURUI_EBELN_STY_STR-PEINH sy-vline 
WA_MMPURUI_EBELN_STY_STR-MATKL sy-vline 
WA_MMPURUI_EBELN_STY_STR-KNTTP sy-vline 
WA_MMPURUI_EBELN_STY_STR-KTMNG sy-vline 
WA_MMPURUI_EBELN_STY_STR-LMEIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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