ABAP Select data from SAP table CPABASN into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CPABASN 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 CPABASN. 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 CPABASN 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_CPABASN TYPE STANDARD TABLE OF CPABASN,
      WA_CPABASN TYPE CPABASN,
      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: <CPABASN> TYPE CPABASN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPABASN
*  INTO TABLE @DATA(IT_CPABASN2).
*--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_CPABASN INDEX 1 INTO DATA(WA_CPABASN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPABASN>-PABNUM = 1.
<CPABASN>-PABPOS = 1.
<CPABASN>-PRODN = 1.
<CPABASN>-VBELN = 1.
<CPABASN>-POSNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPABASN-MATNR, sy-vline,
  WA_CPABASN-PABAVM, sy-vline,
  WA_CPABASN-EBELN, sy-vline,
  WA_CPABASN-EBELP, sy-vline,
  WA_CPABASN-PABMNG, sy-vline,
  WA_CPABASN-MEINS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPABASN 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_CPABASN 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_CPABASN INTO WA_CPABASN.


*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 ALPHA, internal->external for field PABNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPABASN-PABNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPABASN-PABNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPABASN-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPABASN-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CPABASN-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPABASN-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPABASN-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPABASN-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPABASN-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPABASN-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPABASN-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPABASN-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGLIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPABASN-ORGLIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPABASN-ORGLIFNR.
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_CPABASN_STR, 
PABNUM TYPE STRING,
PABPOS TYPE STRING,
PRODN TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
MATNR TYPE STRING,
PABAVM TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
PABMNG TYPE STRING,
MEINS TYPE STRING,
ABLAD TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
PRVBE TYPE STRING,
PACKV TYPE STRING,
PABWEF TYPE STRING,
PARTGR TYPE STRING,
PABAVM_D TYPE STRING,
PABMNG_D TYPE STRING,
VRKME TYPE STRING,
ORGLIFNR TYPE STRING,
PABART TYPE STRING,
KZEBU TYPE STRING,
VARSRC TYPE STRING,
AUTOGR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPABASN_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_CPABASN_STR-PABNUM sy-vline 
WA_CPABASN_STR-PABPOS sy-vline 
WA_CPABASN_STR-PRODN sy-vline 
WA_CPABASN_STR-VBELN sy-vline 
WA_CPABASN_STR-POSNR sy-vline 
WA_CPABASN_STR-MATNR sy-vline 
WA_CPABASN_STR-PABAVM sy-vline 
WA_CPABASN_STR-EBELN sy-vline 
WA_CPABASN_STR-EBELP sy-vline 
WA_CPABASN_STR-PABMNG sy-vline 
WA_CPABASN_STR-MEINS sy-vline 
WA_CPABASN_STR-ABLAD sy-vline 
WA_CPABASN_STR-WERKS sy-vline 
WA_CPABASN_STR-LGORT sy-vline 
WA_CPABASN_STR-PRVBE sy-vline 
WA_CPABASN_STR-PACKV sy-vline 
WA_CPABASN_STR-PABWEF sy-vline 
WA_CPABASN_STR-PARTGR sy-vline 
WA_CPABASN_STR-PABAVM_D sy-vline 
WA_CPABASN_STR-PABMNG_D sy-vline 
WA_CPABASN_STR-VRKME sy-vline 
WA_CPABASN_STR-ORGLIFNR sy-vline 
WA_CPABASN_STR-PABART sy-vline 
WA_CPABASN_STR-KZEBU sy-vline 
WA_CPABASN_STR-VARSRC sy-vline 
WA_CPABASN_STR-AUTOGR sy-vline      INTO ld_text SEPARATED BY SPACE.

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