ABAP Select data from SAP table P21_S_CIMJ_MAIN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P21_S_CIMJ_MAIN 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 P21_S_CIMJ_MAIN. 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 P21_S_CIMJ_MAIN 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_P21_S_CIMJ_MAIN TYPE STANDARD TABLE OF P21_S_CIMJ_MAIN,
      WA_P21_S_CIMJ_MAIN TYPE P21_S_CIMJ_MAIN,
      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: <P21_S_CIMJ_MAIN> TYPE P21_S_CIMJ_MAIN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P21_S_CIMJ_MAIN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P21_S_CIMJ_MAIN
  INTO TABLE IT_P21_S_CIMJ_MAIN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P21_S_CIMJ_MAIN
*  INTO TABLE @DATA(IT_P21_S_CIMJ_MAIN2).
*--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_P21_S_CIMJ_MAIN INDEX 1 INTO DATA(WA_P21_S_CIMJ_MAIN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P21_S_CIMJ_MAIN ASSIGNING <P21_S_CIMJ_MAIN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P21_S_CIMJ_MAIN>-PERNR = 1.
<P21_S_CIMJ_MAIN>-BUKRS = 1.
<P21_S_CIMJ_MAIN>-NEV = 1.
<P21_S_CIMJ_MAIN>-SZUL_NEV = 1.
<P21_S_CIMJ_MAIN>-MUNAM = 1.

ENDLOOP.

LOOP AT IT_P21_S_CIMJ_MAIN INTO WA_P21_S_CIMJ_MAIN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P21_S_CIMJ_MAIN-GBDAT, sy-vline,
  WA_P21_S_CIMJ_MAIN-GBORT, sy-vline,
  WA_P21_S_CIMJ_MAIN-TAJ, sy-vline,
  WA_P21_S_CIMJ_MAIN-ALL_CIM, sy-vline,
  WA_P21_S_CIMJ_MAIN-ALL_IRSZAM, sy-vline,
  WA_P21_S_CIMJ_MAIN-ALL_HELYSEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P21_S_CIMJ_MAIN 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_P21_S_CIMJ_MAIN 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_P21_S_CIMJ_MAIN INTO WA_P21_S_CIMJ_MAIN.


*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 PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P21_S_CIMJ_MAIN-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P21_S_CIMJ_MAIN-GBDAT.
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_P21_S_CIMJ_MAIN_STR, 
PERNR TYPE STRING,
BUKRS TYPE STRING,
NEV TYPE STRING,
SZUL_NEV TYPE STRING,
MUNAM TYPE STRING,
GBDAT TYPE STRING,
GBORT TYPE STRING,
TAJ TYPE STRING,
ALL_CIM TYPE STRING,
ALL_IRSZAM TYPE STRING,
ALL_HELYSEG TYPE STRING,
TART_CIM TYPE STRING,
TART_IRSZAM TYPE STRING,
TART_HELYSEG TYPE STRING,
M_KOR TYPE STRING,
POZICIO TYPE STRING,
FEOR TYPE STRING,
FEOR_TEXT TYPE STRING,
M_TOL TYPE STRING,
M_IG TYPE STRING,
MNEV_KEZD TYPE STRING,
MNEV_VEGE TYPE STRING,
MEGSZUNES TYPE STRING,
ATL_KERESET TYPE STRING,
ATL_KERESET_TEXT TYPE STRING,
JALAP TYPE STRING,
JALAP_TEXT TYPE STRING,
JALAP_HO TYPE STRING,
LAST_M_KOR TYPE STRING,
LAST_POZICIO TYPE STRING,
LAST_FEOR TYPE STRING,
LAST_FEOR_TEXT TYPE STRING,
LAST_FEOR_DATE TYPE STRING,
SUM_BESBER TYPE STRING,
HAVIBERES_E TYPE STRING,
WAERS TYPE STRING,
BUTXT TYPE STRING,
ADDRS TYPE STRING,
TAXNUM TYPE STRING,
TEAOR TYPE STRING,
DATE_PLACE TYPE STRING,
DATE_DATUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P21_S_CIMJ_MAIN_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_P21_S_CIMJ_MAIN_STR-PERNR sy-vline 
WA_P21_S_CIMJ_MAIN_STR-BUKRS sy-vline 
WA_P21_S_CIMJ_MAIN_STR-NEV sy-vline 
WA_P21_S_CIMJ_MAIN_STR-SZUL_NEV sy-vline 
WA_P21_S_CIMJ_MAIN_STR-MUNAM sy-vline 
WA_P21_S_CIMJ_MAIN_STR-GBDAT sy-vline 
WA_P21_S_CIMJ_MAIN_STR-GBORT sy-vline 
WA_P21_S_CIMJ_MAIN_STR-TAJ sy-vline 
WA_P21_S_CIMJ_MAIN_STR-ALL_CIM sy-vline 
WA_P21_S_CIMJ_MAIN_STR-ALL_IRSZAM sy-vline 
WA_P21_S_CIMJ_MAIN_STR-ALL_HELYSEG sy-vline 
WA_P21_S_CIMJ_MAIN_STR-TART_CIM sy-vline 
WA_P21_S_CIMJ_MAIN_STR-TART_IRSZAM sy-vline 
WA_P21_S_CIMJ_MAIN_STR-TART_HELYSEG sy-vline 
WA_P21_S_CIMJ_MAIN_STR-M_KOR sy-vline 
WA_P21_S_CIMJ_MAIN_STR-POZICIO sy-vline 
WA_P21_S_CIMJ_MAIN_STR-FEOR sy-vline 
WA_P21_S_CIMJ_MAIN_STR-FEOR_TEXT sy-vline 
WA_P21_S_CIMJ_MAIN_STR-M_TOL sy-vline 
WA_P21_S_CIMJ_MAIN_STR-M_IG sy-vline 
WA_P21_S_CIMJ_MAIN_STR-MNEV_KEZD sy-vline 
WA_P21_S_CIMJ_MAIN_STR-MNEV_VEGE sy-vline 
WA_P21_S_CIMJ_MAIN_STR-MEGSZUNES sy-vline 
WA_P21_S_CIMJ_MAIN_STR-ATL_KERESET sy-vline 
WA_P21_S_CIMJ_MAIN_STR-ATL_KERESET_TEXT sy-vline 
WA_P21_S_CIMJ_MAIN_STR-JALAP sy-vline 
WA_P21_S_CIMJ_MAIN_STR-JALAP_TEXT sy-vline 
WA_P21_S_CIMJ_MAIN_STR-JALAP_HO sy-vline 
WA_P21_S_CIMJ_MAIN_STR-LAST_M_KOR sy-vline 
WA_P21_S_CIMJ_MAIN_STR-LAST_POZICIO sy-vline 
WA_P21_S_CIMJ_MAIN_STR-LAST_FEOR sy-vline 
WA_P21_S_CIMJ_MAIN_STR-LAST_FEOR_TEXT sy-vline 
WA_P21_S_CIMJ_MAIN_STR-LAST_FEOR_DATE sy-vline 
WA_P21_S_CIMJ_MAIN_STR-SUM_BESBER sy-vline 
WA_P21_S_CIMJ_MAIN_STR-HAVIBERES_E sy-vline 
WA_P21_S_CIMJ_MAIN_STR-WAERS sy-vline 
WA_P21_S_CIMJ_MAIN_STR-BUTXT sy-vline 
WA_P21_S_CIMJ_MAIN_STR-ADDRS sy-vline 
WA_P21_S_CIMJ_MAIN_STR-TAXNUM sy-vline 
WA_P21_S_CIMJ_MAIN_STR-TEAOR sy-vline 
WA_P21_S_CIMJ_MAIN_STR-DATE_PLACE sy-vline 
WA_P21_S_CIMJ_MAIN_STR-DATE_DATUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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