ABAP Select data from SAP table SPJCAPA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SPJCAPA
*  INTO TABLE @DATA(IT_SPJCAPA2).
*--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_SPJCAPA INDEX 1 INTO DATA(WA_SPJCAPA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SPJCAPA>-BEDA = 1.
<SPJCAPA>-BETI = 1.
<SPJCAPA>-ENDA = 1.
<SPJCAPA>-ENTI = 1.
<SPJCAPA>-EVALU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SPJCAPA-AVATI, sy-vline,
  WA_SPJCAPA-AVAQM, sy-vline,
  WA_SPJCAPA-AVAQO, sy-vline,
  WA_SPJCAPA-PROTI, sy-vline,
  WA_SPJCAPA-PRODO, sy-vline,
  WA_SPJCAPA-PRODQ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SPJCAPA 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_SPJCAPA 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_SPJCAPA INTO WA_SPJCAPA.


*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 TSTRN, internal->external for field AVATI
CALL FUNCTION 'CONVERSION_EXIT_TSTRN_OUTPUT'
  EXPORTING
    input =                      WA_SPJCAPA-AVATI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SPJCAPA-AVATI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRN, internal->external for field PROTI
CALL FUNCTION 'CONVERSION_EXIT_TSTRN_OUTPUT'
  EXPORTING
    input =                      WA_SPJCAPA-PROTI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SPJCAPA-PROTI.
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_SPJCAPA_STR, 
BEDA TYPE STRING,
BETI TYPE STRING,
ENDA TYPE STRING,
ENTI TYPE STRING,
EVALU TYPE STRING,
AVATI TYPE STRING,
AVAQM TYPE STRING,
AVAQO TYPE STRING,
PROTI TYPE STRING,
PRODO TYPE STRING,
PRODQ TYPE STRING,
LOADM TYPE STRING,
LOADP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SPJCAPA_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_SPJCAPA_STR-BEDA sy-vline 
WA_SPJCAPA_STR-BETI sy-vline 
WA_SPJCAPA_STR-ENDA sy-vline 
WA_SPJCAPA_STR-ENTI sy-vline 
WA_SPJCAPA_STR-EVALU sy-vline 
WA_SPJCAPA_STR-AVATI sy-vline 
WA_SPJCAPA_STR-AVAQM sy-vline 
WA_SPJCAPA_STR-AVAQO sy-vline 
WA_SPJCAPA_STR-PROTI sy-vline 
WA_SPJCAPA_STR-PRODO sy-vline 
WA_SPJCAPA_STR-PRODQ sy-vline 
WA_SPJCAPA_STR-LOADM sy-vline 
WA_SPJCAPA_STR-LOADP sy-vline      INTO ld_text SEPARATED BY SPACE.

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