ABAP Select data from SAP table CRMC_CP_2000301 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMC_CP_2000301 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_CP_2000301. 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_CP_2000301 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_CP_2000301 TYPE STANDARD TABLE OF CRMC_CP_2000301,
      WA_CRMC_CP_2000301 TYPE CRMC_CP_2000301,
      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_CP_2000301> TYPE CRMC_CP_2000301.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMC_CP_2000301.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMC_CP_2000301
  INTO TABLE IT_CRMC_CP_2000301.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMC_CP_2000301
*  INTO TABLE @DATA(IT_CRMC_CP_20003012).
*--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_CP_2000301 INDEX 1 INTO DATA(WA_CRMC_CP_20003012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMC_CP_2000301 ASSIGNING <CRMC_CP_2000301>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMC_CP_2000301>-CLIENT = 1.
<CRMC_CP_2000301>-CHNG_PROC = 1.
<CRMC_CP_2000301>-SUBOBJ_CATEG_H = 1.
<CRMC_CP_2000301>-SUBOBJ_CATEG_I = 1.
<CRMC_CP_2000301>-NEWL_FOR_TAXES = 1.

ENDLOOP.

LOOP AT IT_CRMC_CP_2000301 INTO WA_CRMC_CP_2000301.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMC_CP_2000301-MASTER_NEW, sy-vline,
  WA_CRMC_CP_2000301-FIN_ITEM_TYPE, sy-vline,
  WA_CRMC_CP_2000301-COA_ITEM_TYPE, sy-vline,
  WA_CRMC_CP_2000301-FINPROD_CHNG, sy-vline,
  WA_CRMC_CP_2000301-RET_ITEM_TYPE, sy-vline,
  WA_CRMC_CP_2000301-VEND_INVOICE_POS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMC_CP_2000301 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_CP_2000301 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_CP_2000301 INTO WA_CRMC_CP_2000301.


*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_CP_2000301_STR, 
CLIENT TYPE STRING,
CHNG_PROC TYPE STRING,
SUBOBJ_CATEG_H TYPE STRING,
SUBOBJ_CATEG_I TYPE STRING,
NEWL_FOR_TAXES TYPE STRING,
MASTER_NEW TYPE STRING,
FIN_ITEM_TYPE TYPE STRING,
COA_ITEM_TYPE TYPE STRING,
FINPROD_CHNG TYPE STRING,
RET_ITEM_TYPE TYPE STRING,
VEND_INVOICE_POS TYPE STRING,
CLASSIFICATION TYPE STRING,
OPTION_CREATION TYPE STRING,
BROKEN_PERIOD TYPE STRING,
EXEC_BOUND_TYPE TYPE STRING,
OPT_CREATION_CON TYPE STRING,
BILLING_BLOCK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMC_CP_2000301_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_CP_2000301_STR-CLIENT sy-vline 
WA_CRMC_CP_2000301_STR-CHNG_PROC sy-vline 
WA_CRMC_CP_2000301_STR-SUBOBJ_CATEG_H sy-vline 
WA_CRMC_CP_2000301_STR-SUBOBJ_CATEG_I sy-vline 
WA_CRMC_CP_2000301_STR-NEWL_FOR_TAXES sy-vline 
WA_CRMC_CP_2000301_STR-MASTER_NEW sy-vline 
WA_CRMC_CP_2000301_STR-FIN_ITEM_TYPE sy-vline 
WA_CRMC_CP_2000301_STR-COA_ITEM_TYPE sy-vline 
WA_CRMC_CP_2000301_STR-FINPROD_CHNG sy-vline 
WA_CRMC_CP_2000301_STR-RET_ITEM_TYPE sy-vline 
WA_CRMC_CP_2000301_STR-VEND_INVOICE_POS sy-vline 
WA_CRMC_CP_2000301_STR-CLASSIFICATION sy-vline 
WA_CRMC_CP_2000301_STR-OPTION_CREATION sy-vline 
WA_CRMC_CP_2000301_STR-BROKEN_PERIOD sy-vline 
WA_CRMC_CP_2000301_STR-EXEC_BOUND_TYPE sy-vline 
WA_CRMC_CP_2000301_STR-OPT_CREATION_CON sy-vline 
WA_CRMC_CP_2000301_STR-BILLING_BLOCK sy-vline      INTO ld_text SEPARATED BY SPACE.

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