ABAP Select data from SAP table MARM_PRC 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 MARM_PRC 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 MARM_PRC. 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 MARM_PRC 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_MARM_PRC TYPE STANDARD TABLE OF MARM_PRC,
      WA_MARM_PRC TYPE MARM_PRC,
      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: <MARM_PRC> TYPE MARM_PRC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MARM_PRC
*  INTO TABLE @DATA(IT_MARM_PRC2).
*--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_MARM_PRC INDEX 1 INTO DATA(WA_MARM_PRC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MARM_PRC>-CLIENT = 1.
<MARM_PRC>-PROCESS_ID = 1.
<MARM_PRC>-PROCESS_STEP_NO = 1.
<MARM_PRC>-SOURCE_SYSTEM = 1.
<MARM_PRC>-SOURCE_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MARM_PRC-MEINH, sy-vline,
  WA_MARM_PRC-UMREZ, sy-vline,
  WA_MARM_PRC-UMREN, sy-vline,
  WA_MARM_PRC-EANNR, sy-vline,
  WA_MARM_PRC-EAN11, sy-vline,
  WA_MARM_PRC-NUMTP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MARM_PRC 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_MARM_PRC 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_MARM_PRC INTO WA_MARM_PRC.


*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 MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MARM_PRC-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MARM_PRC-MEINH.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field /STTPEC/SERNO_PROV_BUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MARM_PRC-/STTPEC/SERNO_PROV_BUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MARM_PRC-/STTPEC/SERNO_PROV_BUP.
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_MARM_PRC_STR, 
CLIENT TYPE STRING,
PROCESS_ID TYPE STRING,
PROCESS_STEP_NO TYPE STRING,
SOURCE_SYSTEM TYPE STRING,
SOURCE_ID TYPE STRING,
MEINH TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
EANNR TYPE STRING,
EAN11 TYPE STRING,
NUMTP TYPE STRING,
LAENG TYPE STRING,
BREIT TYPE STRING,
HOEHE TYPE STRING,
MEABM TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
MESUB TYPE STRING,
ATINN TYPE STRING,
MESRT TYPE STRING,
XFHDW TYPE STRING,
XBEWW TYPE STRING,
KZWSO TYPE STRING,
MSEHI TYPE STRING,
BFLME_MARM TYPE STRING,
GTIN_VARIANT TYPE STRING,
NEST_FTR TYPE STRING,
MAX_STACK TYPE STRING,
TOP_LOAD_FULL TYPE STRING,
TOP_LOAD_FULL_UOM TYPE STRING,
CAPAUSE TYPE STRING,
TY2TQ TYPE STRING,
DUMMY_UOM_INCL_EEW_PS TYPE STRING,
/CWM/TY2TQ TYPE STRING,
/STTPEC/NCODE TYPE STRING,
/STTPEC/NCODE_TY TYPE STRING,
/STTPEC/RCODE TYPE STRING,
/STTPEC/SERUSE TYPE STRING,
/STTPEC/SYNCCHG TYPE STRING,
/STTPEC/SERNO_MANAGED TYPE STRING,
/STTPEC/SERNO_PROV_BUP TYPE STRING,
/STTPEC/UOM_SYNC TYPE STRING,
/STTPEC/SER_GTIN TYPE STRING,
PCBUT TYPE STRING,
SOURCE_RECENCY TYPE STRING,
SOURCE_MODIFIED TYPE STRING,
SOURCE_MODIFICATION_BLIP TYPE STRING,
SOURCE_INDEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MARM_PRC_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_MARM_PRC_STR-CLIENT sy-vline 
WA_MARM_PRC_STR-PROCESS_ID sy-vline 
WA_MARM_PRC_STR-PROCESS_STEP_NO sy-vline 
WA_MARM_PRC_STR-SOURCE_SYSTEM sy-vline 
WA_MARM_PRC_STR-SOURCE_ID sy-vline 
WA_MARM_PRC_STR-MEINH sy-vline 
WA_MARM_PRC_STR-UMREZ sy-vline 
WA_MARM_PRC_STR-UMREN sy-vline 
WA_MARM_PRC_STR-EANNR sy-vline 
WA_MARM_PRC_STR-EAN11 sy-vline 
WA_MARM_PRC_STR-NUMTP sy-vline 
WA_MARM_PRC_STR-LAENG sy-vline 
WA_MARM_PRC_STR-BREIT sy-vline 
WA_MARM_PRC_STR-HOEHE sy-vline 
WA_MARM_PRC_STR-MEABM sy-vline 
WA_MARM_PRC_STR-VOLUM sy-vline 
WA_MARM_PRC_STR-VOLEH sy-vline 
WA_MARM_PRC_STR-BRGEW sy-vline 
WA_MARM_PRC_STR-GEWEI sy-vline 
WA_MARM_PRC_STR-MESUB sy-vline 
WA_MARM_PRC_STR-ATINN sy-vline 
WA_MARM_PRC_STR-MESRT sy-vline 
WA_MARM_PRC_STR-XFHDW sy-vline 
WA_MARM_PRC_STR-XBEWW sy-vline 
WA_MARM_PRC_STR-KZWSO sy-vline 
WA_MARM_PRC_STR-MSEHI sy-vline 
WA_MARM_PRC_STR-BFLME_MARM sy-vline 
WA_MARM_PRC_STR-GTIN_VARIANT sy-vline 
WA_MARM_PRC_STR-NEST_FTR sy-vline 
WA_MARM_PRC_STR-MAX_STACK sy-vline 
WA_MARM_PRC_STR-TOP_LOAD_FULL sy-vline 
WA_MARM_PRC_STR-TOP_LOAD_FULL_UOM sy-vline 
WA_MARM_PRC_STR-CAPAUSE sy-vline 
WA_MARM_PRC_STR-TY2TQ sy-vline 
WA_MARM_PRC_STR-DUMMY_UOM_INCL_EEW_PS sy-vline 
WA_MARM_PRC_STR-/CWM/TY2TQ sy-vline 
WA_MARM_PRC_STR-/STTPEC/NCODE sy-vline 
WA_MARM_PRC_STR-/STTPEC/NCODE_TY sy-vline 
WA_MARM_PRC_STR-/STTPEC/RCODE sy-vline 
WA_MARM_PRC_STR-/STTPEC/SERUSE sy-vline 
WA_MARM_PRC_STR-/STTPEC/SYNCCHG sy-vline 
WA_MARM_PRC_STR-/STTPEC/SERNO_MANAGED sy-vline 
WA_MARM_PRC_STR-/STTPEC/SERNO_PROV_BUP sy-vline 
WA_MARM_PRC_STR-/STTPEC/UOM_SYNC sy-vline 
WA_MARM_PRC_STR-/STTPEC/SER_GTIN sy-vline 
WA_MARM_PRC_STR-PCBUT sy-vline 
WA_MARM_PRC_STR-SOURCE_RECENCY sy-vline 
WA_MARM_PRC_STR-SOURCE_MODIFIED sy-vline 
WA_MARM_PRC_STR-SOURCE_MODIFICATION_BLIP sy-vline 
WA_MARM_PRC_STR-SOURCE_INDEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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