ABAP Select data from SAP table SPL_MARA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SPL_MARA
*  INTO TABLE @DATA(IT_SPL_MARA2).
*--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_SPL_MARA INDEX 1 INTO DATA(WA_SPL_MARA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SPL_MARA>-HUTYP_DFLT = 1.
<SPL_MARA>-PILFERABLE = 1.
<SPL_MARA>-WHSTC = 1.
<SPL_MARA>-WHMATGR = 1.
<SPL_MARA>-HNDLCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SPL_MARA-HAZMAT, sy-vline,
  WA_SPL_MARA-HUTYP, sy-vline,
  WA_SPL_MARA-TARE_VAR, sy-vline,
  WA_SPL_MARA-MAXC, sy-vline,
  WA_SPL_MARA-MAXC_TOL, sy-vline,
  WA_SPL_MARA-MAXL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SPL_MARA 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_SPL_MARA 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_SPL_MARA INTO WA_SPL_MARA.


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

*Conversion exit CUNIT, internal->external for field QQTIMEUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_SPL_MARA-QQTIMEUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SPL_MARA-QQTIMEUOM.
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_SPL_MARA_STR, 
HUTYP_DFLT TYPE STRING,
PILFERABLE TYPE STRING,
WHSTC TYPE STRING,
WHMATGR TYPE STRING,
HNDLCODE TYPE STRING,
HAZMAT TYPE STRING,
HUTYP TYPE STRING,
TARE_VAR TYPE STRING,
MAXC TYPE STRING,
MAXC_TOL TYPE STRING,
MAXL TYPE STRING,
MAXB TYPE STRING,
MAXH TYPE STRING,
MAXDIM_UOM TYPE STRING,
HERKL TYPE STRING,
MFRGR TYPE STRING,
QQTIME TYPE STRING,
QQTIMEUOM TYPE STRING,
QGRP TYPE STRING,
SERIAL TYPE STRING,
PS_SMARTFORM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SPL_MARA_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_SPL_MARA_STR-HUTYP_DFLT sy-vline 
WA_SPL_MARA_STR-PILFERABLE sy-vline 
WA_SPL_MARA_STR-WHSTC sy-vline 
WA_SPL_MARA_STR-WHMATGR sy-vline 
WA_SPL_MARA_STR-HNDLCODE sy-vline 
WA_SPL_MARA_STR-HAZMAT sy-vline 
WA_SPL_MARA_STR-HUTYP sy-vline 
WA_SPL_MARA_STR-TARE_VAR sy-vline 
WA_SPL_MARA_STR-MAXC sy-vline 
WA_SPL_MARA_STR-MAXC_TOL sy-vline 
WA_SPL_MARA_STR-MAXL sy-vline 
WA_SPL_MARA_STR-MAXB sy-vline 
WA_SPL_MARA_STR-MAXH sy-vline 
WA_SPL_MARA_STR-MAXDIM_UOM sy-vline 
WA_SPL_MARA_STR-HERKL sy-vline 
WA_SPL_MARA_STR-MFRGR sy-vline 
WA_SPL_MARA_STR-QQTIME sy-vline 
WA_SPL_MARA_STR-QQTIMEUOM sy-vline 
WA_SPL_MARA_STR-QGRP sy-vline 
WA_SPL_MARA_STR-SERIAL sy-vline 
WA_SPL_MARA_STR-PS_SMARTFORM sy-vline      INTO ld_text SEPARATED BY SPACE.

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