ABAP Select data from SAP table BAPICMS_STR_CAG_CHG_CRT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPICMS_STR_CAG_CHG_CRT
*  INTO TABLE @DATA(IT_BAPICMS_STR_CAG_CHG_CRT2).
*--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_BAPICMS_STR_CAG_CHG_CRT INDEX 1 INTO DATA(WA_BAPICMS_STR_CAG_CHG_CRT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPICMS_STR_CAG_CHG_CRT>-ASSET_NUMBER = 1.
<BAPICMS_STR_CAG_CHG_CRT>-ASSET_TYPE = 1.
<BAPICMS_STR_CAG_CHG_CRT>-SUB_ASSET_ID = 1.
<BAPICMS_STR_CAG_CHG_CRT>-CHARGE_DESCRIPTION = 1.
<BAPICMS_STR_CAG_CHG_CRT>-RANKING_ORDER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPICMS_STR_CAG_CHG_CRT-COLLATERAL_AGREEMENT_SEQUENCE, sy-vline,
  WA_BAPICMS_STR_CAG_CHG_CRT-CHARGE_REGISTRATION_ENTRY_NO, sy-vline,
  WA_BAPICMS_STR_CAG_CHG_CRT-CHARGE_REGISTRATION_DATE, sy-vline,
  WA_BAPICMS_STR_CAG_CHG_CRT-ASSET_PART_NUMERATOR, sy-vline,
  WA_BAPICMS_STR_CAG_CHG_CRT-ASSET_PART_DENOMINATOR, sy-vline,
  WA_BAPICMS_STR_CAG_CHG_CRT-ASSET_QUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPICMS_STR_CAG_CHG_CRT 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_BAPICMS_STR_CAG_CHG_CRT 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_BAPICMS_STR_CAG_CHG_CRT INTO WA_BAPICMS_STR_CAG_CHG_CRT.


*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 ALPHA, internal->external for field ASSET_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICMS_STR_CAG_CHG_CRT-ASSET_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICMS_STR_CAG_CHG_CRT-ASSET_NUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_OF_MEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPICMS_STR_CAG_CHG_CRT-UNIT_OF_MEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICMS_STR_CAG_CHG_CRT-UNIT_OF_MEASURE.
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_BAPICMS_STR_CAG_CHG_CRT_STR, 
ASSET_NUMBER TYPE STRING,
ASSET_TYPE TYPE STRING,
SUB_ASSET_ID TYPE STRING,
CHARGE_DESCRIPTION TYPE STRING,
RANKING_ORDER TYPE STRING,
COLLATERAL_AGREEMENT_SEQUENCE TYPE STRING,
CHARGE_REGISTRATION_ENTRY_NO TYPE STRING,
CHARGE_REGISTRATION_DATE TYPE STRING,
ASSET_PART_NUMERATOR TYPE STRING,
ASSET_PART_DENOMINATOR TYPE STRING,
ASSET_QUANTITY TYPE STRING,
UNIT_OF_MEASURE TYPE STRING,
UNIT_OF_MEASURE_ISO TYPE STRING,
ASSET_VALUE TYPE STRING,
ASSET_VALUE_CURRENCY TYPE STRING,
ASSET_VALUE_CURRENCY_ISO TYPE STRING,
CHARGE_ASSESSMENT_AMOUNT TYPE STRING,
CHARGE_ASSESSMENT_CURRENCY TYPE STRING,
CHARGE_ASSESSMENT_CURRENCY_ISO TYPE STRING,
CHARGE_ASSESSMENT_DATE TYPE STRING,
CHARGE_VALID_FROM TYPE STRING,
CHARGE_VALID_TO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPICMS_STR_CAG_CHG_CRT_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_BAPICMS_STR_CAG_CHG_CRT_STR-ASSET_NUMBER sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-ASSET_TYPE sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-SUB_ASSET_ID sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-CHARGE_DESCRIPTION sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-RANKING_ORDER sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-COLLATERAL_AGREEMENT_SEQUENCE sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-CHARGE_REGISTRATION_ENTRY_NO sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-CHARGE_REGISTRATION_DATE sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-ASSET_PART_NUMERATOR sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-ASSET_PART_DENOMINATOR sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-ASSET_QUANTITY sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-UNIT_OF_MEASURE sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-UNIT_OF_MEASURE_ISO sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-ASSET_VALUE sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-ASSET_VALUE_CURRENCY sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-ASSET_VALUE_CURRENCY_ISO sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-CHARGE_ASSESSMENT_AMOUNT sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-CHARGE_ASSESSMENT_CURRENCY sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-CHARGE_ASSESSMENT_CURRENCY_ISO sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-CHARGE_ASSESSMENT_DATE sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-CHARGE_VALID_FROM sy-vline 
WA_BAPICMS_STR_CAG_CHG_CRT_STR-CHARGE_VALID_TO sy-vline      INTO ld_text SEPARATED BY SPACE.

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