ABAP Select data from SAP table CRMT_ISX_AGR_L_ROOT_IL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMT_ISX_AGR_L_ROOT_IL 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_ISX_AGR_L_ROOT_IL. 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_ISX_AGR_L_ROOT_IL 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_ISX_AGR_L_ROOT_IL TYPE STANDARD TABLE OF CRMT_ISX_AGR_L_ROOT_IL,
      WA_CRMT_ISX_AGR_L_ROOT_IL TYPE CRMT_ISX_AGR_L_ROOT_IL,
      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_ISX_AGR_L_ROOT_IL> TYPE CRMT_ISX_AGR_L_ROOT_IL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_ISX_AGR_L_ROOT_IL
*  INTO TABLE @DATA(IT_CRMT_ISX_AGR_L_ROOT_IL2).
*--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_ISX_AGR_L_ROOT_IL INDEX 1 INTO DATA(WA_CRMT_ISX_AGR_L_ROOT_IL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_ISX_AGR_L_ROOT_IL>-MA_ID = 1.
<CRMT_ISX_AGR_L_ROOT_IL>-AGREEMENT_ID = 1.
<CRMT_ISX_AGR_L_ROOT_IL>-AGREEMENT_TYPE = 1.
<CRMT_ISX_AGR_L_ROOT_IL>-AGREEMENT_PRIORITY = 1.
<CRMT_ISX_AGR_L_ROOT_IL>-DATE_FROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_ISX_AGR_L_ROOT_IL-DATE_TO, sy-vline,
  WA_CRMT_ISX_AGR_L_ROOT_IL-AGREEMENT_ID_PARENT, sy-vline,
  WA_CRMT_ISX_AGR_L_ROOT_IL-VALID_TO, sy-vline,
  WA_CRMT_ISX_AGR_L_ROOT_IL-AGREEMENT_DESCR, sy-vline,
  WA_CRMT_ISX_AGR_L_ROOT_IL-LOGSYS, sy-vline,
  WA_CRMT_ISX_AGR_L_ROOT_IL-BILLCYCLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_ISX_AGR_L_ROOT_IL 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_ISX_AGR_L_ROOT_IL 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_ISX_AGR_L_ROOT_IL INTO WA_CRMT_ISX_AGR_L_ROOT_IL.


*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 MA_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ISX_AGR_L_ROOT_IL-MA_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ISX_AGR_L_ROOT_IL-MA_ID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ABWRH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ISX_AGR_L_ROOT_IL-ABWRH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ISX_AGR_L_ROOT_IL-ABWRH.
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_CRMT_ISX_AGR_L_ROOT_IL_STR, 
MA_ID TYPE STRING,
AGREEMENT_ID TYPE STRING,
AGREEMENT_TYPE TYPE STRING,
AGREEMENT_PRIORITY TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
AGREEMENT_ID_PARENT TYPE STRING,
VALID_TO TYPE STRING,
AGREEMENT_DESCR TYPE STRING,
LOGSYS TYPE STRING,
BILLCYCLE TYPE STRING,
BILLCYCLE_DESCR TYPE STRING,
BILLCYCLE_DAY TYPE STRING,
BILLCYCLE_DAY_DESCR TYPE STRING,
INV_SCHEDULE TYPE STRING,
INV_SCHEDULE_DESCR TYPE STRING,
INV_CATEGORY TYPE STRING,
INV_CATEGORY_DESCR TYPE STRING,
INVOICE_LIST_BP TYPE STRING,
INVOICE_LIST_BP_NAME TYPE STRING,
BUAG TYPE STRING,
XOWNI TYPE STRING,
ADRRH TYPE STRING,
ABWRH TYPE STRING,
ABWRH_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_ISX_AGR_L_ROOT_IL_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_ISX_AGR_L_ROOT_IL_STR-MA_ID sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-AGREEMENT_ID sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-AGREEMENT_TYPE sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-AGREEMENT_PRIORITY sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-DATE_FROM sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-DATE_TO sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-AGREEMENT_ID_PARENT sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-VALID_TO sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-AGREEMENT_DESCR sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-LOGSYS sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-BILLCYCLE sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-BILLCYCLE_DESCR sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-BILLCYCLE_DAY sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-BILLCYCLE_DAY_DESCR sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-INV_SCHEDULE sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-INV_SCHEDULE_DESCR sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-INV_CATEGORY sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-INV_CATEGORY_DESCR sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-INVOICE_LIST_BP sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-INVOICE_LIST_BP_NAME sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-BUAG sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-XOWNI sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-ADRRH sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-ABWRH sy-vline 
WA_CRMT_ISX_AGR_L_ROOT_IL_STR-ABWRH_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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