ABAP Select data from SAP table EMARC1 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EMARC1 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 EMARC1. 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 EMARC1 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_EMARC1 TYPE STANDARD TABLE OF EMARC1,
      WA_EMARC1 TYPE EMARC1,
      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: <EMARC1> TYPE EMARC1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EMARC1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EMARC1
  INTO TABLE IT_EMARC1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EMARC1
*  INTO TABLE @DATA(IT_EMARC12).
*--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_EMARC1 INDEX 1 INTO DATA(WA_EMARC12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EMARC1 ASSIGNING <EMARC1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EMARC1>-PSTAT = 1.
<EMARC1>-LVORM = 1.
<EMARC1>-BWTTY = 1.
<EMARC1>-XCHAR = 1.
<EMARC1>-MMSTA = 1.

ENDLOOP.

LOOP AT IT_EMARC1 INTO WA_EMARC1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EMARC1-MMSTD, sy-vline,
  WA_EMARC1-MAABC, sy-vline,
  WA_EMARC1-KZKRI, sy-vline,
  WA_EMARC1-EKGRP, sy-vline,
  WA_EMARC1-AUSME, sy-vline,
  WA_EMARC1-DISPR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EMARC1 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_EMARC1 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_EMARC1 INTO WA_EMARC1.


*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 CUNIT, internal->external for field AUSME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EMARC1-AUSME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EMARC1-AUSME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field NFMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EMARC1-NFMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EMARC1-NFMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LZEIH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EMARC1-LZEIH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EMARC1-LZEIH.
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_EMARC1_STR, 
PSTAT TYPE STRING,
LVORM TYPE STRING,
BWTTY TYPE STRING,
XCHAR TYPE STRING,
MMSTA TYPE STRING,
MMSTD TYPE STRING,
MAABC TYPE STRING,
KZKRI TYPE STRING,
EKGRP TYPE STRING,
AUSME TYPE STRING,
DISPR TYPE STRING,
DISMM TYPE STRING,
DISPO TYPE STRING,
KZDIE TYPE STRING,
PLIFZ TYPE STRING,
WEBAZ TYPE STRING,
PERKZ TYPE STRING,
AUSSS TYPE STRING,
DISLS TYPE STRING,
BESKZ TYPE STRING,
SOBSL TYPE STRING,
MINBE TYPE STRING,
EISBE TYPE STRING,
BSTMI TYPE STRING,
BSTMA TYPE STRING,
BSTFE TYPE STRING,
BSTRF TYPE STRING,
MABST TYPE STRING,
LOSFX TYPE STRING,
SBDKZ TYPE STRING,
LAGPR TYPE STRING,
ALTSL TYPE STRING,
KZAUS TYPE STRING,
AUSDT TYPE STRING,
NFMAT TYPE STRING,
KZBED TYPE STRING,
MISKZ TYPE STRING,
FHORI TYPE STRING,
PFREI TYPE STRING,
FFREI TYPE STRING,
RGEKZ TYPE STRING,
FEVOR TYPE STRING,
BEARZ TYPE STRING,
RUEZT TYPE STRING,
TRANZ TYPE STRING,
BASMG TYPE STRING,
DZEIT TYPE STRING,
MAXLZ TYPE STRING,
LZEIH TYPE STRING,
KZPRO TYPE STRING,
GPMKZ TYPE STRING,
UEETO TYPE STRING,
UEETK TYPE STRING,
UNETO TYPE STRING,
WZEIT TYPE STRING,
ATPKZ TYPE STRING,
VZUSL TYPE STRING,
HERBL TYPE STRING,
INSMK TYPE STRING,
SPROZ TYPE STRING,
QUAZT TYPE STRING,
SSQSS TYPE STRING,
MPDAU TYPE STRING,
KZPPV TYPE STRING,
KZDKZ TYPE STRING,
WSTGH TYPE STRING,
PRFRQ TYPE STRING,
NKMPR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EMARC1_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_EMARC1_STR-PSTAT sy-vline 
WA_EMARC1_STR-LVORM sy-vline 
WA_EMARC1_STR-BWTTY sy-vline 
WA_EMARC1_STR-XCHAR sy-vline 
WA_EMARC1_STR-MMSTA sy-vline 
WA_EMARC1_STR-MMSTD sy-vline 
WA_EMARC1_STR-MAABC sy-vline 
WA_EMARC1_STR-KZKRI sy-vline 
WA_EMARC1_STR-EKGRP sy-vline 
WA_EMARC1_STR-AUSME sy-vline 
WA_EMARC1_STR-DISPR sy-vline 
WA_EMARC1_STR-DISMM sy-vline 
WA_EMARC1_STR-DISPO sy-vline 
WA_EMARC1_STR-KZDIE sy-vline 
WA_EMARC1_STR-PLIFZ sy-vline 
WA_EMARC1_STR-WEBAZ sy-vline 
WA_EMARC1_STR-PERKZ sy-vline 
WA_EMARC1_STR-AUSSS sy-vline 
WA_EMARC1_STR-DISLS sy-vline 
WA_EMARC1_STR-BESKZ sy-vline 
WA_EMARC1_STR-SOBSL sy-vline 
WA_EMARC1_STR-MINBE sy-vline 
WA_EMARC1_STR-EISBE sy-vline 
WA_EMARC1_STR-BSTMI sy-vline 
WA_EMARC1_STR-BSTMA sy-vline 
WA_EMARC1_STR-BSTFE sy-vline 
WA_EMARC1_STR-BSTRF sy-vline 
WA_EMARC1_STR-MABST sy-vline 
WA_EMARC1_STR-LOSFX sy-vline 
WA_EMARC1_STR-SBDKZ sy-vline 
WA_EMARC1_STR-LAGPR sy-vline 
WA_EMARC1_STR-ALTSL sy-vline 
WA_EMARC1_STR-KZAUS sy-vline 
WA_EMARC1_STR-AUSDT sy-vline 
WA_EMARC1_STR-NFMAT sy-vline 
WA_EMARC1_STR-KZBED sy-vline 
WA_EMARC1_STR-MISKZ sy-vline 
WA_EMARC1_STR-FHORI sy-vline 
WA_EMARC1_STR-PFREI sy-vline 
WA_EMARC1_STR-FFREI sy-vline 
WA_EMARC1_STR-RGEKZ sy-vline 
WA_EMARC1_STR-FEVOR sy-vline 
WA_EMARC1_STR-BEARZ sy-vline 
WA_EMARC1_STR-RUEZT sy-vline 
WA_EMARC1_STR-TRANZ sy-vline 
WA_EMARC1_STR-BASMG sy-vline 
WA_EMARC1_STR-DZEIT sy-vline 
WA_EMARC1_STR-MAXLZ sy-vline 
WA_EMARC1_STR-LZEIH sy-vline 
WA_EMARC1_STR-KZPRO sy-vline 
WA_EMARC1_STR-GPMKZ sy-vline 
WA_EMARC1_STR-UEETO sy-vline 
WA_EMARC1_STR-UEETK sy-vline 
WA_EMARC1_STR-UNETO sy-vline 
WA_EMARC1_STR-WZEIT sy-vline 
WA_EMARC1_STR-ATPKZ sy-vline 
WA_EMARC1_STR-VZUSL sy-vline 
WA_EMARC1_STR-HERBL sy-vline 
WA_EMARC1_STR-INSMK sy-vline 
WA_EMARC1_STR-SPROZ sy-vline 
WA_EMARC1_STR-QUAZT sy-vline 
WA_EMARC1_STR-SSQSS sy-vline 
WA_EMARC1_STR-MPDAU sy-vline 
WA_EMARC1_STR-KZPPV sy-vline 
WA_EMARC1_STR-KZDKZ sy-vline 
WA_EMARC1_STR-WSTGH sy-vline 
WA_EMARC1_STR-PRFRQ sy-vline 
WA_EMARC1_STR-NKMPR sy-vline      INTO ld_text SEPARATED BY SPACE.

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