ABAP Select data from SAP table KABCALC_TABLEVIEW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KABCALC_TABLEVIEW
*  INTO TABLE @DATA(IT_KABCALC_TABLEVIEW2).
*--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_KABCALC_TABLEVIEW INDEX 1 INTO DATA(WA_KABCALC_TABLEVIEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KABCALC_TABLEVIEW>-MATNR = 1.
<KABCALC_TABLEVIEW>-PRVBE = 1.
<KABCALC_TABLEVIEW>-BEHAZ = 1.
<KABCALC_TABLEVIEW>-NGBAZ = 1.
<KABCALC_TABLEVIEW>-BEHMG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KABCALC_TABLEVIEW-TRIGAZ, sy-vline,
  WA_KABCALC_TABLEVIEW-AENAZ, sy-vline,
  WA_KABCALC_TABLEVIEW-AENMG, sy-vline,
  WA_KABCALC_TABLEVIEW-AENTRI, sy-vline,
  WA_KABCALC_TABLEVIEW-NEXDT, sy-vline,
  WA_KABCALC_TABLEVIEW-NEXAZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KABCALC_TABLEVIEW 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_KABCALC_TABLEVIEW 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_KABCALC_TABLEVIEW INTO WA_KABCALC_TABLEVIEW.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KABCALC_TABLEVIEW-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KABCALC_TABLEVIEW-MATNR.
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_KABCALC_TABLEVIEW_STR, 
MATNR TYPE STRING,
PRVBE TYPE STRING,
BEHAZ TYPE STRING,
NGBAZ TYPE STRING,
BEHMG TYPE STRING,
TRIGAZ TYPE STRING,
AENAZ TYPE STRING,
AENMG TYPE STRING,
AENTRI TYPE STRING,
NEXDT TYPE STRING,
NEXAZ TYPE STRING,
NEXMG TYPE STRING,
NEXTRI TYPE STRING,
KCVDT TYPE STRING,
KCBDT TYPE STRING,
PCMAA TYPE STRING,
PCMAM TYPE STRING,
PCMIA TYPE STRING,
PCMIM TYPE STRING,
PCMAA_NOPARA TYPE STRING,
PCMAM_NOPARA TYPE STRING,
PCMAA_RFT TYPE STRING,
PCMAM_RFT TYPE STRING,
PCMAA_WT TYPE STRING,
PCMAM_WT TYPE STRING,
PCMAA_ITT TYPE STRING,
PCMAM_ITT TYPE STRING,
PCMAA_PIT TYPE STRING,
PCMAM_PIT TYPE STRING,
PCMAA_CALBUF TYPE STRING,
PCMAM_CALBUF TYPE STRING,
PCMAA_VOLAT TYPE STRING,
PCMAM_VOLAT TYPE STRING,
PCMAA_DMBUF TYPE STRING,
PCMAM_DMBUF TYPE STRING,
PCMAA_SUPBUF TYPE STRING,
PCMAM_SUPBUF TYPE STRING,
PCMAA_SFC TYPE STRING,
PCMAM_SFC TYPE STRING,
PCMAA_CAPABUF TYPE STRING,
CAPA_WRKCT TYPE STRING,
TRIGGR TYPE STRING,
CAPA_UTL_T TYPE STRING,
CAPA_UTL_P TYPE STRING,
CAPA_UTL_S TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KABCALC_TABLEVIEW_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_KABCALC_TABLEVIEW_STR-MATNR sy-vline 
WA_KABCALC_TABLEVIEW_STR-PRVBE sy-vline 
WA_KABCALC_TABLEVIEW_STR-BEHAZ sy-vline 
WA_KABCALC_TABLEVIEW_STR-NGBAZ sy-vline 
WA_KABCALC_TABLEVIEW_STR-BEHMG sy-vline 
WA_KABCALC_TABLEVIEW_STR-TRIGAZ sy-vline 
WA_KABCALC_TABLEVIEW_STR-AENAZ sy-vline 
WA_KABCALC_TABLEVIEW_STR-AENMG sy-vline 
WA_KABCALC_TABLEVIEW_STR-AENTRI sy-vline 
WA_KABCALC_TABLEVIEW_STR-NEXDT sy-vline 
WA_KABCALC_TABLEVIEW_STR-NEXAZ sy-vline 
WA_KABCALC_TABLEVIEW_STR-NEXMG sy-vline 
WA_KABCALC_TABLEVIEW_STR-NEXTRI sy-vline 
WA_KABCALC_TABLEVIEW_STR-KCVDT sy-vline 
WA_KABCALC_TABLEVIEW_STR-KCBDT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMIA sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMIM sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_NOPARA sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM_NOPARA sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_RFT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM_RFT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_WT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM_WT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_ITT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM_ITT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_PIT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM_PIT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_CALBUF sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM_CALBUF sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_VOLAT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM_VOLAT sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_DMBUF sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM_DMBUF sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_SUPBUF sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM_SUPBUF sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_SFC sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAM_SFC sy-vline 
WA_KABCALC_TABLEVIEW_STR-PCMAA_CAPABUF sy-vline 
WA_KABCALC_TABLEVIEW_STR-CAPA_WRKCT sy-vline 
WA_KABCALC_TABLEVIEW_STR-TRIGGR sy-vline 
WA_KABCALC_TABLEVIEW_STR-CAPA_UTL_T sy-vline 
WA_KABCALC_TABLEVIEW_STR-CAPA_UTL_P sy-vline 
WA_KABCALC_TABLEVIEW_STR-CAPA_UTL_S sy-vline      INTO ld_text SEPARATED BY SPACE.

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