ABAP Select data from SAP table RJKWWW_CONFIRM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKWWW_CONFIRM
*  INTO TABLE @DATA(IT_RJKWWW_CONFIRM2).
*--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_RJKWWW_CONFIRM INDEX 1 INTO DATA(WA_RJKWWW_CONFIRM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKWWW_CONFIRM>-VBELN = 1.
<RJKWWW_CONFIRM>-POSNR = 1.
<RJKWWW_CONFIRM>-POSEX = 1.
<RJKWWW_CONFIRM>-JPARVW = 1.
<RJKWWW_CONFIRM>-ZUONR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKWWW_CONFIRM-MSGPOS, sy-vline,
  WA_RJKWWW_CONFIRM-DRERZ_TXT, sy-vline,
  WA_RJKWWW_CONFIRM-PVA_TXT, sy-vline,
  WA_RJKWWW_CONFIRM-LIEFERART_TXT, sy-vline,
  WA_RJKWWW_CONFIRM-ANRED_AG_F4TXT, sy-vline,
  WA_RJKWWW_CONFIRM-ANRED_AG_BEZEI30, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKWWW_CONFIRM 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_RJKWWW_CONFIRM 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_RJKWWW_CONFIRM INTO WA_RJKWWW_CONFIRM.


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

*Conversion exit PARVW, internal->external for field JPARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_RJKWWW_CONFIRM-JPARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKWWW_CONFIRM-JPARVW.
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_RJKWWW_CONFIRM_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
POSEX TYPE STRING,
JPARVW TYPE STRING,
ZUONR TYPE STRING,
MSGPOS TYPE STRING,
DRERZ_TXT TYPE STRING,
PVA_TXT TYPE STRING,
LIEFERART_TXT TYPE STRING,
ANRED_AG_F4TXT TYPE STRING,
ANRED_AG_BEZEI30 TYPE STRING,
ANRED_AG_BRIEF TYPE STRING,
ANRED_WE_F4TXT TYPE STRING,
ANRED_WE_BEZEI30 TYPE STRING,
ANRED_WE_BRIEF TYPE STRING,
ANRED_RE_F4TXT TYPE STRING,
ANRED_RE_BEZEI30 TYPE STRING,
ANRED_RE_BRIEF TYPE STRING,
ANRED_VM_F4TXT TYPE STRING,
ANRED_VM_BEZEI30 TYPE STRING,
ANRED_VM_BRIEF TYPE STRING,
REGIO_AG_TXT TYPE STRING,
REGIO_WE_TXT TYPE STRING,
REGIO_RE_TXT TYPE STRING,
REGIO_VM_TXT TYPE STRING,
LAND1_AG_TXT TYPE STRING,
LAND1_WE_TXT TYPE STRING,
LAND1_RE_TXT TYPE STRING,
LAND1_VM_TXT TYPE STRING,
ZLSCH_TXT TYPE STRING,
CCINS_TXT TYPE STRING,
DATBI_TXT TYPE STRING,
WAEHRG_TXT TYPE STRING,
MATNR_TXT TYPE STRING,
XIU_EXISTS TYPE STRING,
XIU_CREATED TYPE STRING,
XDATA_IN_TEMPTAB TYPE STRING,
NETWR TYPE STRING,
MWSBP TYPE STRING,
BRTWR TYPE STRING,
XCOMPLAINT_CREATED TYPE STRING,
LAYOUT_COUNT TYPE STRING,
LAYOUT_COUNT_SCR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKWWW_CONFIRM_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_RJKWWW_CONFIRM_STR-VBELN sy-vline 
WA_RJKWWW_CONFIRM_STR-POSNR sy-vline 
WA_RJKWWW_CONFIRM_STR-POSEX sy-vline 
WA_RJKWWW_CONFIRM_STR-JPARVW sy-vline 
WA_RJKWWW_CONFIRM_STR-ZUONR sy-vline 
WA_RJKWWW_CONFIRM_STR-MSGPOS sy-vline 
WA_RJKWWW_CONFIRM_STR-DRERZ_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-PVA_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-LIEFERART_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_AG_F4TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_AG_BEZEI30 sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_AG_BRIEF sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_WE_F4TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_WE_BEZEI30 sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_WE_BRIEF sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_RE_F4TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_RE_BEZEI30 sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_RE_BRIEF sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_VM_F4TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_VM_BEZEI30 sy-vline 
WA_RJKWWW_CONFIRM_STR-ANRED_VM_BRIEF sy-vline 
WA_RJKWWW_CONFIRM_STR-REGIO_AG_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-REGIO_WE_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-REGIO_RE_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-REGIO_VM_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-LAND1_AG_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-LAND1_WE_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-LAND1_RE_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-LAND1_VM_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-ZLSCH_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-CCINS_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-DATBI_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-WAEHRG_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-MATNR_TXT sy-vline 
WA_RJKWWW_CONFIRM_STR-XIU_EXISTS sy-vline 
WA_RJKWWW_CONFIRM_STR-XIU_CREATED sy-vline 
WA_RJKWWW_CONFIRM_STR-XDATA_IN_TEMPTAB sy-vline 
WA_RJKWWW_CONFIRM_STR-NETWR sy-vline 
WA_RJKWWW_CONFIRM_STR-MWSBP sy-vline 
WA_RJKWWW_CONFIRM_STR-BRTWR sy-vline 
WA_RJKWWW_CONFIRM_STR-XCOMPLAINT_CREATED sy-vline 
WA_RJKWWW_CONFIRM_STR-LAYOUT_COUNT sy-vline 
WA_RJKWWW_CONFIRM_STR-LAYOUT_COUNT_SCR sy-vline      INTO ld_text SEPARATED BY SPACE.

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