ABAP Select data from SAP table CRMC_ITEM_TYPE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMC_ITEM_TYPE
*  INTO TABLE @DATA(IT_CRMC_ITEM_TYPE2).
*--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_CRMC_ITEM_TYPE INDEX 1 INTO DATA(WA_CRMC_ITEM_TYPE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMC_ITEM_TYPE>-CLIENT = 1.
<CRMC_ITEM_TYPE>-ITM_TYPE = 1.
<CRMC_ITEM_TYPE>-ITM_BLOCKED = 1.
<CRMC_ITEM_TYPE>-TEXT_PROCEDURE = 1.
<CRMC_ITEM_TYPE>-PART_DETERM_PROC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMC_ITEM_TYPE-USER_STAT_PROC, sy-vline,
  WA_CRMC_ITEM_TYPE-OBJECT_TYPE, sy-vline,
  WA_CRMC_ITEM_TYPE-ATP_PROFILE, sy-vline,
  WA_CRMC_ITEM_TYPE-WEIGHT_RELEVANT, sy-vline,
  WA_CRMC_ITEM_TYPE-STRUCTURE_TYPE, sy-vline,
  WA_CRMC_ITEM_TYPE-ORG_PROFILID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMC_ITEM_TYPE 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_CRMC_ITEM_TYPE 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_CRMC_ITEM_TYPE INTO WA_CRMC_ITEM_TYPE.


*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_CRMC_ITEM_TYPE_STR, 
CLIENT TYPE STRING,
ITM_TYPE TYPE STRING,
ITM_BLOCKED TYPE STRING,
TEXT_PROCEDURE TYPE STRING,
PART_DETERM_PROC TYPE STRING,
USER_STAT_PROC TYPE STRING,
OBJECT_TYPE TYPE STRING,
ATP_PROFILE TYPE STRING,
WEIGHT_RELEVANT TYPE STRING,
STRUCTURE_TYPE TYPE STRING,
ORG_PROFILID TYPE STRING,
VARIANT_DETERMIN TYPE STRING,
VARIANT_ACTION TYPE STRING,
TIMEPROFILE TYPE STRING,
ACTIONPROFILE TYPE STRING,
COND_GROUP_NAME TYPE STRING,
DLV_GROUP_CORREL TYPE STRING,
STATUS_OBJ_TYPE TYPE STRING,
CONFFPROC TYPE STRING,
BW_ASSIGN TYPE STRING,
ERR_GRP TYPE STRING,
DATE_QTY_FIXED TYPE STRING,
IND_OBJECT TYPE STRING,
OBJREF_PROF_ID TYPE STRING,
NO_PRODUCT_CHECK TYPE STRING,
MAINT_PROFILE TYPE STRING,
AP_DET_PROC TYPE STRING,
REF_OBJECT_TYPE TYPE STRING,
PRINTING_VIEW TYPE STRING,
CREI_PROFILE TYPE STRING,
PRED_REF_MAND TYPE STRING,
CONFIG_DARK TYPE STRING,
SC_RELEVANT TYPE STRING,
CONT_ITM_QUANVAL TYPE STRING,
TERRITORY_CHECK TYPE STRING,
SCENARIO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMC_ITEM_TYPE_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_CRMC_ITEM_TYPE_STR-CLIENT sy-vline 
WA_CRMC_ITEM_TYPE_STR-ITM_TYPE sy-vline 
WA_CRMC_ITEM_TYPE_STR-ITM_BLOCKED sy-vline 
WA_CRMC_ITEM_TYPE_STR-TEXT_PROCEDURE sy-vline 
WA_CRMC_ITEM_TYPE_STR-PART_DETERM_PROC sy-vline 
WA_CRMC_ITEM_TYPE_STR-USER_STAT_PROC sy-vline 
WA_CRMC_ITEM_TYPE_STR-OBJECT_TYPE sy-vline 
WA_CRMC_ITEM_TYPE_STR-ATP_PROFILE sy-vline 
WA_CRMC_ITEM_TYPE_STR-WEIGHT_RELEVANT sy-vline 
WA_CRMC_ITEM_TYPE_STR-STRUCTURE_TYPE sy-vline 
WA_CRMC_ITEM_TYPE_STR-ORG_PROFILID sy-vline 
WA_CRMC_ITEM_TYPE_STR-VARIANT_DETERMIN sy-vline 
WA_CRMC_ITEM_TYPE_STR-VARIANT_ACTION sy-vline 
WA_CRMC_ITEM_TYPE_STR-TIMEPROFILE sy-vline 
WA_CRMC_ITEM_TYPE_STR-ACTIONPROFILE sy-vline 
WA_CRMC_ITEM_TYPE_STR-COND_GROUP_NAME sy-vline 
WA_CRMC_ITEM_TYPE_STR-DLV_GROUP_CORREL sy-vline 
WA_CRMC_ITEM_TYPE_STR-STATUS_OBJ_TYPE sy-vline 
WA_CRMC_ITEM_TYPE_STR-CONFFPROC sy-vline 
WA_CRMC_ITEM_TYPE_STR-BW_ASSIGN sy-vline 
WA_CRMC_ITEM_TYPE_STR-ERR_GRP sy-vline 
WA_CRMC_ITEM_TYPE_STR-DATE_QTY_FIXED sy-vline 
WA_CRMC_ITEM_TYPE_STR-IND_OBJECT sy-vline 
WA_CRMC_ITEM_TYPE_STR-OBJREF_PROF_ID sy-vline 
WA_CRMC_ITEM_TYPE_STR-NO_PRODUCT_CHECK sy-vline 
WA_CRMC_ITEM_TYPE_STR-MAINT_PROFILE sy-vline 
WA_CRMC_ITEM_TYPE_STR-AP_DET_PROC sy-vline 
WA_CRMC_ITEM_TYPE_STR-REF_OBJECT_TYPE sy-vline 
WA_CRMC_ITEM_TYPE_STR-PRINTING_VIEW sy-vline 
WA_CRMC_ITEM_TYPE_STR-CREI_PROFILE sy-vline 
WA_CRMC_ITEM_TYPE_STR-PRED_REF_MAND sy-vline 
WA_CRMC_ITEM_TYPE_STR-CONFIG_DARK sy-vline 
WA_CRMC_ITEM_TYPE_STR-SC_RELEVANT sy-vline 
WA_CRMC_ITEM_TYPE_STR-CONT_ITM_QUANVAL sy-vline 
WA_CRMC_ITEM_TYPE_STR-TERRITORY_CHECK sy-vline 
WA_CRMC_ITEM_TYPE_STR-SCENARIO sy-vline      INTO ld_text SEPARATED BY SPACE.

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