ABAP Select data from SAP table CRMT_MULTIGRP_I into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_MULTIGRP_I
*  INTO TABLE @DATA(IT_CRMT_MULTIGRP_I2).
*--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_CRMT_MULTIGRP_I INDEX 1 INTO DATA(WA_CRMT_MULTIGRP_I2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_MULTIGRP_I>-MULTIGROUP = 1.
<CRMT_MULTIGRP_I>-BLVIEW = 1.
<CRMT_MULTIGRP_I>-SEQUENCE = 1.
<CRMT_MULTIGRP_I>-HORIZON_POS = 1.
<CRMT_MULTIGRP_I>-EVENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_MULTIGRP_I-MAIN, sy-vline,
  WA_CRMT_MULTIGRP_I-TABLE_WIDTH, sy-vline,
  WA_CRMT_MULTIGRP_I-REF_APPLICATION, sy-vline,
  WA_CRMT_MULTIGRP_I-IMPORTED_EVENT, sy-vline,
  WA_CRMT_MULTIGRP_I-ALIGNMENT, sy-vline,
  WA_CRMT_MULTIGRP_I-INACTIVE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_MULTIGRP_I 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_CRMT_MULTIGRP_I 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_CRMT_MULTIGRP_I INTO WA_CRMT_MULTIGRP_I.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CRMT_MULTIGRP_I_STR, 
MULTIGROUP TYPE STRING,
BLVIEW TYPE STRING,
SEQUENCE TYPE STRING,
HORIZON_POS TYPE STRING,
EVENT TYPE STRING,
MAIN TYPE STRING,
TABLE_WIDTH TYPE STRING,
REF_APPLICATION TYPE STRING,
IMPORTED_EVENT TYPE STRING,
ALIGNMENT TYPE STRING,
INACTIVE TYPE STRING,
BSP_EVENT_I TYPE STRING,
EVENT TYPE STRING,
USED_GRP TYPE STRING,
F4_APPLICATION TYPE STRING,
URL_FIELDNAMEOT TYPE STRING,
URL_FNOTISBOR TYPE STRING,
URL_OBJECTTYPE TYPE STRING,
URL_METHOD TYPE STRING,
URL_FIELDNAMEID TYPE STRING,
URL_FIELDNAMEMTD TYPE STRING,
NAV_EVENT TYPE STRING,
NAV_UNLOCK TYPE STRING,
IMPLICIT_SAVE TYPE STRING,
DESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_MULTIGRP_I_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_CRMT_MULTIGRP_I_STR-MULTIGROUP sy-vline 
WA_CRMT_MULTIGRP_I_STR-BLVIEW sy-vline 
WA_CRMT_MULTIGRP_I_STR-SEQUENCE sy-vline 
WA_CRMT_MULTIGRP_I_STR-HORIZON_POS sy-vline 
WA_CRMT_MULTIGRP_I_STR-EVENT sy-vline 
WA_CRMT_MULTIGRP_I_STR-MAIN sy-vline 
WA_CRMT_MULTIGRP_I_STR-TABLE_WIDTH sy-vline 
WA_CRMT_MULTIGRP_I_STR-REF_APPLICATION sy-vline 
WA_CRMT_MULTIGRP_I_STR-IMPORTED_EVENT sy-vline 
WA_CRMT_MULTIGRP_I_STR-ALIGNMENT sy-vline 
WA_CRMT_MULTIGRP_I_STR-INACTIVE sy-vline 
WA_CRMT_MULTIGRP_I_STR-BSP_EVENT_I sy-vline 
WA_CRMT_MULTIGRP_I_STR-EVENT sy-vline 
WA_CRMT_MULTIGRP_I_STR-USED_GRP sy-vline 
WA_CRMT_MULTIGRP_I_STR-F4_APPLICATION sy-vline 
WA_CRMT_MULTIGRP_I_STR-URL_FIELDNAMEOT sy-vline 
WA_CRMT_MULTIGRP_I_STR-URL_FNOTISBOR sy-vline 
WA_CRMT_MULTIGRP_I_STR-URL_OBJECTTYPE sy-vline 
WA_CRMT_MULTIGRP_I_STR-URL_METHOD sy-vline 
WA_CRMT_MULTIGRP_I_STR-URL_FIELDNAMEID sy-vline 
WA_CRMT_MULTIGRP_I_STR-URL_FIELDNAMEMTD sy-vline 
WA_CRMT_MULTIGRP_I_STR-NAV_EVENT sy-vline 
WA_CRMT_MULTIGRP_I_STR-NAV_UNLOCK sy-vline 
WA_CRMT_MULTIGRP_I_STR-IMPLICIT_SAVE sy-vline 
WA_CRMT_MULTIGRP_I_STR-DESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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