ABAP Select data from SAP table RNDISCHARGE_RCV into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNDISCHARGE_RCV
*  INTO TABLE @DATA(IT_RNDISCHARGE_RCV2).
*--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_RNDISCHARGE_RCV INDEX 1 INTO DATA(WA_RNDISCHARGE_RCV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNDISCHARGE_RCV>-KEY_DATA = 1.
<RNDISCHARGE_RCV>-MANDT = 1.
<RNDISCHARGE_RCV>-GUID = 1.
<RNDISCHARGE_RCV>-EVENT = 1.
<RNDISCHARGE_RCV>-APPLK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNDISCHARGE_RCV-EINRI, sy-vline,
  WA_RNDISCHARGE_RCV-FALNR, sy-vline,
  WA_RNDISCHARGE_RCV-LFDNR, sy-vline,
  WA_RNDISCHARGE_RCV-PATNR, sy-vline,
  WA_RNDISCHARGE_RCV-EXTNR, sy-vline,
  WA_RNDISCHARGE_RCV-KOSTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNDISCHARGE_RCV 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_RNDISCHARGE_RCV 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_RNDISCHARGE_RCV INTO WA_RNDISCHARGE_RCV.


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

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

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

*Conversion exit ALPHA, internal->external for field KOSTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNDISCHARGE_RCV-KOSTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNDISCHARGE_RCV-KOSTR.
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_RNDISCHARGE_RCV_STR, 
KEY_DATA TYPE STRING,
MANDT TYPE STRING,
GUID TYPE STRING,
EVENT TYPE STRING,
APPLK TYPE STRING,
EINRI TYPE STRING,
FALNR TYPE STRING,
LFDNR TYPE STRING,
PATNR TYPE STRING,
EXTNR TYPE STRING,
KOSTR TYPE STRING,
COMNUM TYPE STRING,
KEY1 TYPE STRING,
KEY2 TYPE STRING,
KEY3 TYPE STRING,
KEY4 TYPE STRING,
KEY5 TYPE STRING,
KEY6 TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
ERUSR TYPE STRING,
TA TYPE STRING,
DATA_TYPE TYPE STRING,
REF_GUID TYPE STRING,
FHZ TYPE STRING,
COMNUM TYPE STRING,
MESSG TYPE STRING,
MSBEG TYPE STRING,
MSGTY TYPE STRING,
RETRN TYPE STRING,
HCODE TYPE STRING,
TCODE TYPE STRING,
SDATE TYPE STRING,
RDATE TYPE STRING,
MBODY TYPE STRING,
SYSIF TYPE STRING,
SYSEX TYPE STRING,
MSEND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNDISCHARGE_RCV_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_RNDISCHARGE_RCV_STR-KEY_DATA sy-vline 
WA_RNDISCHARGE_RCV_STR-MANDT sy-vline 
WA_RNDISCHARGE_RCV_STR-GUID sy-vline 
WA_RNDISCHARGE_RCV_STR-EVENT sy-vline 
WA_RNDISCHARGE_RCV_STR-APPLK sy-vline 
WA_RNDISCHARGE_RCV_STR-EINRI sy-vline 
WA_RNDISCHARGE_RCV_STR-FALNR sy-vline 
WA_RNDISCHARGE_RCV_STR-LFDNR sy-vline 
WA_RNDISCHARGE_RCV_STR-PATNR sy-vline 
WA_RNDISCHARGE_RCV_STR-EXTNR sy-vline 
WA_RNDISCHARGE_RCV_STR-KOSTR sy-vline 
WA_RNDISCHARGE_RCV_STR-COMNUM sy-vline 
WA_RNDISCHARGE_RCV_STR-KEY1 sy-vline 
WA_RNDISCHARGE_RCV_STR-KEY2 sy-vline 
WA_RNDISCHARGE_RCV_STR-KEY3 sy-vline 
WA_RNDISCHARGE_RCV_STR-KEY4 sy-vline 
WA_RNDISCHARGE_RCV_STR-KEY5 sy-vline 
WA_RNDISCHARGE_RCV_STR-KEY6 sy-vline 
WA_RNDISCHARGE_RCV_STR-ERDAT sy-vline 
WA_RNDISCHARGE_RCV_STR-ERTIM sy-vline 
WA_RNDISCHARGE_RCV_STR-ERUSR sy-vline 
WA_RNDISCHARGE_RCV_STR-TA sy-vline 
WA_RNDISCHARGE_RCV_STR-DATA_TYPE sy-vline 
WA_RNDISCHARGE_RCV_STR-REF_GUID sy-vline 
WA_RNDISCHARGE_RCV_STR-FHZ sy-vline 
WA_RNDISCHARGE_RCV_STR-COMNUM sy-vline 
WA_RNDISCHARGE_RCV_STR-MESSG sy-vline 
WA_RNDISCHARGE_RCV_STR-MSBEG sy-vline 
WA_RNDISCHARGE_RCV_STR-MSGTY sy-vline 
WA_RNDISCHARGE_RCV_STR-RETRN sy-vline 
WA_RNDISCHARGE_RCV_STR-HCODE sy-vline 
WA_RNDISCHARGE_RCV_STR-TCODE sy-vline 
WA_RNDISCHARGE_RCV_STR-SDATE sy-vline 
WA_RNDISCHARGE_RCV_STR-RDATE sy-vline 
WA_RNDISCHARGE_RCV_STR-MBODY sy-vline 
WA_RNDISCHARGE_RCV_STR-SYSIF sy-vline 
WA_RNDISCHARGE_RCV_STR-SYSEX sy-vline 
WA_RNDISCHARGE_RCV_STR-MSEND sy-vline      INTO ld_text SEPARATED BY SPACE.

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