ABAP Select data from SAP table RNPOL_CASE_X 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 RNPOL_CASE_X 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 RNPOL_CASE_X. 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 RNPOL_CASE_X 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_RNPOL_CASE_X TYPE STANDARD TABLE OF RNPOL_CASE_X,
      WA_RNPOL_CASE_X TYPE RNPOL_CASE_X,
      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: <RNPOL_CASE_X> TYPE RNPOL_CASE_X.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNPOL_CASE_X
*  INTO TABLE @DATA(IT_RNPOL_CASE_X2).
*--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_RNPOL_CASE_X INDEX 1 INTO DATA(WA_RNPOL_CASE_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNPOL_CASE_X>-FPEDTX = 1.
<RNPOL_CASE_X>-VORGRX = 1.
<RNPOL_CASE_X>-ABRKZX = 1.
<RNPOL_CASE_X>-DGNLFX = 1.
<RNPOL_CASE_X>-FACHRX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNPOL_CASE_X-BEGDTX, sy-vline,
  WA_RNPOL_CASE_X-ENDDTX, sy-vline,
  WA_RNPOL_CASE_X-STASPX, sy-vline,
  WA_RNPOL_CASE_X-KV_KZX, sy-vline,
  WA_RNPOL_CASE_X-RESPIX, sy-vline,
  WA_RNPOL_CASE_X-TOBX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNPOL_CASE_X 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_RNPOL_CASE_X 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_RNPOL_CASE_X INTO WA_RNPOL_CASE_X.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RNPOL_CASE_X_STR, 
FPEDTX TYPE STRING,
VORGRX TYPE STRING,
ABRKZX TYPE STRING,
DGNLFX TYPE STRING,
FACHRX TYPE STRING,
BEGDTX TYPE STRING,
ENDDTX TYPE STRING,
STASPX TYPE STRING,
KV_KZX TYPE STRING,
RESPIX TYPE STRING,
TOBX TYPE STRING,
EAUFNX TYPE STRING,
PATGEWX TYPE STRING,
GWEINX TYPE STRING,
READMX TYPE STRING,
LMPERX TYPE STRING,
MHLSX TYPE STRING,
SAPS_CX TYPE STRING,
PIM2_CX TYPE STRING,
CRIB_CX TYPE STRING,
NEMS_CX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNPOL_CASE_X_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_RNPOL_CASE_X_STR-FPEDTX sy-vline 
WA_RNPOL_CASE_X_STR-VORGRX sy-vline 
WA_RNPOL_CASE_X_STR-ABRKZX sy-vline 
WA_RNPOL_CASE_X_STR-DGNLFX sy-vline 
WA_RNPOL_CASE_X_STR-FACHRX sy-vline 
WA_RNPOL_CASE_X_STR-BEGDTX sy-vline 
WA_RNPOL_CASE_X_STR-ENDDTX sy-vline 
WA_RNPOL_CASE_X_STR-STASPX sy-vline 
WA_RNPOL_CASE_X_STR-KV_KZX sy-vline 
WA_RNPOL_CASE_X_STR-RESPIX sy-vline 
WA_RNPOL_CASE_X_STR-TOBX sy-vline 
WA_RNPOL_CASE_X_STR-EAUFNX sy-vline 
WA_RNPOL_CASE_X_STR-PATGEWX sy-vline 
WA_RNPOL_CASE_X_STR-GWEINX sy-vline 
WA_RNPOL_CASE_X_STR-READMX sy-vline 
WA_RNPOL_CASE_X_STR-LMPERX sy-vline 
WA_RNPOL_CASE_X_STR-MHLSX sy-vline 
WA_RNPOL_CASE_X_STR-SAPS_CX sy-vline 
WA_RNPOL_CASE_X_STR-PIM2_CX sy-vline 
WA_RNPOL_CASE_X_STR-CRIB_CX sy-vline 
WA_RNPOL_CASE_X_STR-NEMS_CX sy-vline      INTO ld_text SEPARATED BY SPACE.

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