ABAP Select data from SAP table CRMS4S_IU_REG_BL_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMS4S_IU_REG_BL_DATA 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 CRMS4S_IU_REG_BL_DATA. 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 CRMS4S_IU_REG_BL_DATA 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_CRMS4S_IU_REG_BL_DATA TYPE STANDARD TABLE OF CRMS4S_IU_REG_BL_DATA,
      WA_CRMS4S_IU_REG_BL_DATA TYPE CRMS4S_IU_REG_BL_DATA,
      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: <CRMS4S_IU_REG_BL_DATA> TYPE CRMS4S_IU_REG_BL_DATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMS4S_IU_REG_BL_DATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMS4S_IU_REG_BL_DATA
  INTO TABLE IT_CRMS4S_IU_REG_BL_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS4S_IU_REG_BL_DATA
*  INTO TABLE @DATA(IT_CRMS4S_IU_REG_BL_DATA2).
*--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_CRMS4S_IU_REG_BL_DATA INDEX 1 INTO DATA(WA_CRMS4S_IU_REG_BL_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMS4S_IU_REG_BL_DATA ASSIGNING <CRMS4S_IU_REG_BL_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS4S_IU_REG_BL_DATA>-BIS = 1.
<CRMS4S_IU_REG_BL_DATA>-AB = 1.
<CRMS4S_IU_REG_BL_DATA>-SPARTYP = 1.
<CRMS4S_IU_REG_BL_DATA>-INTSIZEID = 1.
<CRMS4S_IU_REG_BL_DATA>-LOGIKZW = 1.

ENDLOOP.

LOOP AT IT_CRMS4S_IU_REG_BL_DATA INTO WA_CRMS4S_IU_REG_BL_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS4S_IU_REG_BL_DATA-ZWKENN, sy-vline,
  WA_CRMS4S_IU_REG_BL_DATA-KENNZIFF, sy-vline,
  WA_CRMS4S_IU_REG_BL_DATA-ZWART, sy-vline,
  WA_CRMS4S_IU_REG_BL_DATA-ZWARTTXT, sy-vline,
  WA_CRMS4S_IU_REG_BL_DATA-ZWFAKT, sy-vline,
  WA_CRMS4S_IU_REG_BL_DATA-STANZVOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS4S_IU_REG_BL_DATA 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_CRMS4S_IU_REG_BL_DATA 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_CRMS4S_IU_REG_BL_DATA INTO WA_CRMS4S_IU_REG_BL_DATA.


*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 MASSREAD
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_IU_REG_BL_DATA-MASSREAD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_IU_REG_BL_DATA-MASSREAD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MASSBILL
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_IU_REG_BL_DATA-MASSBILL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_IU_REG_BL_DATA-MASSBILL.
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_CRMS4S_IU_REG_BL_DATA_STR, 
BIS TYPE STRING,
AB TYPE STRING,
SPARTYP TYPE STRING,
INTSIZEID TYPE STRING,
LOGIKZW TYPE STRING,
ZWKENN TYPE STRING,
KENNZIFF TYPE STRING,
ZWART TYPE STRING,
ZWARTTXT TYPE STRING,
ZWFAKT TYPE STRING,
STANZVOR TYPE STRING,
STANZNAC TYPE STRING,
ZWTYP TYPE STRING,
ZWTYPTXT TYPE STRING,
BLIWIRK TYPE STRING,
MASSREAD TYPE STRING,
ANZERG TYPE STRING,
KZMESSW TYPE STRING,
UEBERVER TYPE STRING,
STEUERGRP TYPE STRING,
NABLESEN TYPE STRING,
PRUEFKL TYPE STRING,
TEMP_AREA TYPE STRING,
PR_AREA_AI TYPE STRING,
CALOR_AREA TYPE STRING,
HOEKORR TYPE STRING,
THGBER TYPE STRING,
KZAHLE TYPE STRING,
KZAHLT TYPE STRING,
GAS_PRS_AR TYPE STRING,
CRGPRESS TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
MASSBILL TYPE STRING,
GEWKEY TYPE STRING,
ZSPANNS TYPE STRING,
ZSTROMS TYPE STRING,
ZSPANNP TYPE STRING,
ZSTROMP TYPE STRING,
TOUPERIOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS4S_IU_REG_BL_DATA_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_CRMS4S_IU_REG_BL_DATA_STR-BIS sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-AB sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-SPARTYP sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-INTSIZEID sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-LOGIKZW sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ZWKENN sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-KENNZIFF sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ZWART sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ZWARTTXT sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ZWFAKT sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-STANZVOR sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-STANZNAC sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ZWTYP sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ZWTYPTXT sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-BLIWIRK sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-MASSREAD sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ANZERG sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-KZMESSW sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-UEBERVER sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-STEUERGRP sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-NABLESEN sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-PRUEFKL sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-TEMP_AREA sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-PR_AREA_AI sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-CALOR_AREA sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-HOEKORR sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-THGBER sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-KZAHLE sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-KZAHLT sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-GAS_PRS_AR sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-CRGPRESS sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ERDAT sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ERNAM sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-AEDAT sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-AENAM sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-MASSBILL sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-GEWKEY sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ZSPANNS sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ZSTROMS sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ZSPANNP sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-ZSTROMP sy-vline 
WA_CRMS4S_IU_REG_BL_DATA_STR-TOUPERIOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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