ABAP Select data from SAP table RJK_ADDPAYMENT_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJK_ADDPAYMENT_ALV
*  INTO TABLE @DATA(IT_RJK_ADDPAYMENT_ALV2).
*--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_RJK_ADDPAYMENT_ALV INDEX 1 INTO DATA(WA_RJK_ADDPAYMENT_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJK_ADDPAYMENT_ALV>-ADDPAYMENT_TYPE = 1.
<RJK_ADDPAYMENT_ALV>-GPART_SENDER = 1.
<RJK_ADDPAYMENT_ALV>-VKONT_SENDER = 1.
<RJK_ADDPAYMENT_ALV>-OPBEL_SENDER = 1.
<RJK_ADDPAYMENT_ALV>-BETRW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJK_ADDPAYMENT_ALV-WAERS, sy-vline,
  WA_RJK_ADDPAYMENT_ALV-OPBEL_RECEIVER, sy-vline,
  WA_RJK_ADDPAYMENT_ALV-GPART_RECEIVER, sy-vline,
  WA_RJK_ADDPAYMENT_ALV-VKONT_RECEIVER, sy-vline,
  WA_RJK_ADDPAYMENT_ALV-XERROR, sy-vline,
  WA_RJK_ADDPAYMENT_ALV-INCLUDE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJK_ADDPAYMENT_ALV 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_RJK_ADDPAYMENT_ALV 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_RJK_ADDPAYMENT_ALV INTO WA_RJK_ADDPAYMENT_ALV.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field VKONT_RECEIVER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJK_ADDPAYMENT_ALV-VKONT_RECEIVER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJK_ADDPAYMENT_ALV-VKONT_RECEIVER.
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_RJK_ADDPAYMENT_ALV_STR, 
ADDPAYMENT_TYPE TYPE STRING,
GPART_SENDER TYPE STRING,
VKONT_SENDER TYPE STRING,
OPBEL_SENDER TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
OPBEL_RECEIVER TYPE STRING,
GPART_RECEIVER TYPE STRING,
VKONT_RECEIVER TYPE STRING,
XERROR TYPE STRING,
INCLUDE TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGTY TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
ERRORTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJK_ADDPAYMENT_ALV_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_RJK_ADDPAYMENT_ALV_STR-ADDPAYMENT_TYPE sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-GPART_SENDER sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-VKONT_SENDER sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-OPBEL_SENDER sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-BETRW sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-WAERS sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-OPBEL_RECEIVER sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-GPART_RECEIVER sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-VKONT_RECEIVER sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-XERROR sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-INCLUDE sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-MSGID sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-MSGNO sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-MSGTY sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-MSGV1 sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-MSGV2 sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-MSGV3 sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-MSGV4 sy-vline 
WA_RJK_ADDPAYMENT_ALV_STR-ERRORTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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