ABAP Select data from SAP table RPISCAI0_03 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPISCAI0_03 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 RPISCAI0_03. 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 RPISCAI0_03 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_RPISCAI0_03 TYPE STANDARD TABLE OF RPISCAI0_03,
      WA_RPISCAI0_03 TYPE RPISCAI0_03,
      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: <RPISCAI0_03> TYPE RPISCAI0_03.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPISCAI0_03.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPISCAI0_03
  INTO TABLE IT_RPISCAI0_03.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPISCAI0_03
*  INTO TABLE @DATA(IT_RPISCAI0_032).
*--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_RPISCAI0_03 INDEX 1 INTO DATA(WA_RPISCAI0_032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPISCAI0_03 ASSIGNING <RPISCAI0_03>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPISCAI0_03>-PERNR = 1.
<RPISCAI0_03>-ENAME = 1.
<RPISCAI0_03>-XCCAT = 1.
<RPISCAI0_03>-DASCAOLD = 1.
<RPISCAI0_03>-CDCLAOLD = 1.

ENDLOOP.

LOOP AT IT_RPISCAI0_03 INTO WA_RPISCAI0_03.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPISCAI0_03-PRSCAOLD, sy-vline,
  WA_RPISCAI0_03-PRSCBOLD, sy-vline,
  WA_RPISCAI0_03-NUSCAOLD, sy-vline,
  WA_RPISCAI0_03-NUSCBOLD, sy-vline,
  WA_RPISCAI0_03-NUSCCOLD, sy-vline,
  WA_RPISCAI0_03-PERPTOLD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPISCAI0_03 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_RPISCAI0_03 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_RPISCAI0_03 INTO WA_RPISCAI0_03.


*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_RPISCAI0_03_STR, 
PERNR TYPE STRING,
ENAME TYPE STRING,
XCCAT TYPE STRING,
DASCAOLD TYPE STRING,
CDCLAOLD TYPE STRING,
PRSCAOLD TYPE STRING,
PRSCBOLD TYPE STRING,
NUSCAOLD TYPE STRING,
NUSCBOLD TYPE STRING,
NUSCCOLD TYPE STRING,
PERPTOLD TYPE STRING,
TRFST_OLD TYPE STRING,
LGART_AO TYPE STRING,
BETRG_AO TYPE STRING,
LGART_BO TYPE STRING,
BETRG_BO TYPE STRING,
LGART_CO TYPE STRING,
BETRG_CO TYPE STRING,
LGART_DO TYPE STRING,
BETRG_DO TYPE STRING,
DASCANEW TYPE STRING,
CDCLANEW TYPE STRING,
PRSCANEW TYPE STRING,
PRSCBNEW TYPE STRING,
NUSCANEW TYPE STRING,
NUSCBNEW TYPE STRING,
NUSCCNEW TYPE STRING,
PERPTNEW TYPE STRING,
TRFST_NEW TYPE STRING,
LGART_AN TYPE STRING,
BETRG_AN TYPE STRING,
LGART_BN TYPE STRING,
BETRG_BN TYPE STRING,
LGART_CN TYPE STRING,
BETRG_CN TYPE STRING,
LGART_DN TYPE STRING,
BETRG_DN TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPISCAI0_03_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_RPISCAI0_03_STR-PERNR sy-vline 
WA_RPISCAI0_03_STR-ENAME sy-vline 
WA_RPISCAI0_03_STR-XCCAT sy-vline 
WA_RPISCAI0_03_STR-DASCAOLD sy-vline 
WA_RPISCAI0_03_STR-CDCLAOLD sy-vline 
WA_RPISCAI0_03_STR-PRSCAOLD sy-vline 
WA_RPISCAI0_03_STR-PRSCBOLD sy-vline 
WA_RPISCAI0_03_STR-NUSCAOLD sy-vline 
WA_RPISCAI0_03_STR-NUSCBOLD sy-vline 
WA_RPISCAI0_03_STR-NUSCCOLD sy-vline 
WA_RPISCAI0_03_STR-PERPTOLD sy-vline 
WA_RPISCAI0_03_STR-TRFST_OLD sy-vline 
WA_RPISCAI0_03_STR-LGART_AO sy-vline 
WA_RPISCAI0_03_STR-BETRG_AO sy-vline 
WA_RPISCAI0_03_STR-LGART_BO sy-vline 
WA_RPISCAI0_03_STR-BETRG_BO sy-vline 
WA_RPISCAI0_03_STR-LGART_CO sy-vline 
WA_RPISCAI0_03_STR-BETRG_CO sy-vline 
WA_RPISCAI0_03_STR-LGART_DO sy-vline 
WA_RPISCAI0_03_STR-BETRG_DO sy-vline 
WA_RPISCAI0_03_STR-DASCANEW sy-vline 
WA_RPISCAI0_03_STR-CDCLANEW sy-vline 
WA_RPISCAI0_03_STR-PRSCANEW sy-vline 
WA_RPISCAI0_03_STR-PRSCBNEW sy-vline 
WA_RPISCAI0_03_STR-NUSCANEW sy-vline 
WA_RPISCAI0_03_STR-NUSCBNEW sy-vline 
WA_RPISCAI0_03_STR-NUSCCNEW sy-vline 
WA_RPISCAI0_03_STR-PERPTNEW sy-vline 
WA_RPISCAI0_03_STR-TRFST_NEW sy-vline 
WA_RPISCAI0_03_STR-LGART_AN sy-vline 
WA_RPISCAI0_03_STR-BETRG_AN sy-vline 
WA_RPISCAI0_03_STR-LGART_BN sy-vline 
WA_RPISCAI0_03_STR-BETRG_BN sy-vline 
WA_RPISCAI0_03_STR-LGART_CN sy-vline 
WA_RPISCAI0_03_STR-BETRG_CN sy-vline 
WA_RPISCAI0_03_STR-LGART_DN sy-vline 
WA_RPISCAI0_03_STR-BETRG_DN sy-vline 
WA_RPISCAI0_03_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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