ABAP Select data from SAP table RPISCAI0_04 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPISCAI0_04 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_04. 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_04 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_04 TYPE STANDARD TABLE OF RPISCAI0_04,
      WA_RPISCAI0_04 TYPE RPISCAI0_04,
      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_04> TYPE RPISCAI0_04.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPISCAI0_04.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPISCAI0_04
  INTO TABLE IT_RPISCAI0_04.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPISCAI0_04
*  INTO TABLE @DATA(IT_RPISCAI0_042).
*--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_04 INDEX 1 INTO DATA(WA_RPISCAI0_042).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPISCAI0_04 ASSIGNING <RPISCAI0_04>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPISCAI0_04>-PERNR = 1.
<RPISCAI0_04>-XCCAT = 1.
<RPISCAI0_04>-DASCA = 1.
<RPISCAI0_04>-NUSCA = 1.
<RPISCAI0_04>-PRSCA = 1.

ENDLOOP.

LOOP AT IT_RPISCAI0_04 INTO WA_RPISCAI0_04.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPISCAI0_04-NUSCB, sy-vline,
  WA_RPISCAI0_04-PRSCB, sy-vline,
  WA_RPISCAI0_04-NUSCC, sy-vline,
  WA_RPISCAI0_04-LGART_A, sy-vline,
  WA_RPISCAI0_04-BETRG_A, sy-vline,
  WA_RPISCAI0_04-LGART_B, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPISCAI0_04 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_04 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_04 INTO WA_RPISCAI0_04.


*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_04_STR, 
PERNR TYPE STRING,
XCCAT TYPE STRING,
DASCA TYPE STRING,
NUSCA TYPE STRING,
PRSCA TYPE STRING,
NUSCB TYPE STRING,
PRSCB TYPE STRING,
NUSCC TYPE STRING,
LGART_A TYPE STRING,
BETRG_A TYPE STRING,
LGART_B TYPE STRING,
BETRG_B TYPE STRING,
LGART_C TYPE STRING,
BETRG_C TYPE STRING,
LGART_D TYPE STRING,
BETRG_D TYPE STRING,
PERPT TYPE STRING,
EDIT_NAME TYPE STRING,
DASCA_N TYPE STRING,
NUSCA_N TYPE STRING,
PRSCA_N TYPE STRING,
NUSCB_N TYPE STRING,
PRSCB_N TYPE STRING,
NUSCC_N TYPE STRING,
LGART_A_N TYPE STRING,
BETRG_A_N TYPE STRING,
LGART_B_N TYPE STRING,
BETRG_B_N TYPE STRING,
LGART_C_N TYPE STRING,
BETRG_C_N TYPE STRING,
LGART_D_N TYPE STRING,
BETRG_D_N TYPE STRING,
PERPT_N TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPISCAI0_04_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_04_STR-PERNR sy-vline 
WA_RPISCAI0_04_STR-XCCAT sy-vline 
WA_RPISCAI0_04_STR-DASCA sy-vline 
WA_RPISCAI0_04_STR-NUSCA sy-vline 
WA_RPISCAI0_04_STR-PRSCA sy-vline 
WA_RPISCAI0_04_STR-NUSCB sy-vline 
WA_RPISCAI0_04_STR-PRSCB sy-vline 
WA_RPISCAI0_04_STR-NUSCC sy-vline 
WA_RPISCAI0_04_STR-LGART_A sy-vline 
WA_RPISCAI0_04_STR-BETRG_A sy-vline 
WA_RPISCAI0_04_STR-LGART_B sy-vline 
WA_RPISCAI0_04_STR-BETRG_B sy-vline 
WA_RPISCAI0_04_STR-LGART_C sy-vline 
WA_RPISCAI0_04_STR-BETRG_C sy-vline 
WA_RPISCAI0_04_STR-LGART_D sy-vline 
WA_RPISCAI0_04_STR-BETRG_D sy-vline 
WA_RPISCAI0_04_STR-PERPT sy-vline 
WA_RPISCAI0_04_STR-EDIT_NAME sy-vline 
WA_RPISCAI0_04_STR-DASCA_N sy-vline 
WA_RPISCAI0_04_STR-NUSCA_N sy-vline 
WA_RPISCAI0_04_STR-PRSCA_N sy-vline 
WA_RPISCAI0_04_STR-NUSCB_N sy-vline 
WA_RPISCAI0_04_STR-PRSCB_N sy-vline 
WA_RPISCAI0_04_STR-NUSCC_N sy-vline 
WA_RPISCAI0_04_STR-LGART_A_N sy-vline 
WA_RPISCAI0_04_STR-BETRG_A_N sy-vline 
WA_RPISCAI0_04_STR-LGART_B_N sy-vline 
WA_RPISCAI0_04_STR-BETRG_B_N sy-vline 
WA_RPISCAI0_04_STR-LGART_C_N sy-vline 
WA_RPISCAI0_04_STR-BETRG_C_N sy-vline 
WA_RPISCAI0_04_STR-LGART_D_N sy-vline 
WA_RPISCAI0_04_STR-BETRG_D_N sy-vline 
WA_RPISCAI0_04_STR-PERPT_N sy-vline      INTO ld_text SEPARATED BY SPACE.

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