ABAP Select data from SAP table CNMMQUANS_EKBE_PSP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNMMQUANS_EKBE_PSP
*  INTO TABLE @DATA(IT_CNMMQUANS_EKBE_PSP2).
*--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_CNMMQUANS_EKBE_PSP INDEX 1 INTO DATA(WA_CNMMQUANS_EKBE_PSP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNMMQUANS_EKBE_PSP>-PSPNR = 1.
<CNMMQUANS_EKBE_PSP>-VBELN = 1.
<CNMMQUANS_EKBE_PSP>-POSNR = 1.
<CNMMQUANS_EKBE_PSP>-ICONS = 1.
<CNMMQUANS_EKBE_PSP>-MENGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNMMQUANS_EKBE_PSP-MEINS, sy-vline,
  WA_CNMMQUANS_EKBE_PSP-EBELN, sy-vline,
  WA_CNMMQUANS_EKBE_PSP-EBELP, sy-vline,
  WA_CNMMQUANS_EKBE_PSP-XEKET, sy-vline,
  WA_CNMMQUANS_EKBE_PSP-XEKES, sy-vline,
  WA_CNMMQUANS_EKBE_PSP-XEKBE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNMMQUANS_EKBE_PSP 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_CNMMQUANS_EKBE_PSP 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_CNMMQUANS_EKBE_PSP INTO WA_CNMMQUANS_EKBE_PSP.


*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 ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CNMMQUANS_EKBE_PSP-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNMMQUANS_EKBE_PSP-PSPNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CNMMQUANS_EKBE_PSP-BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNMMQUANS_EKBE_PSP-BPRME.
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_CNMMQUANS_EKBE_PSP_STR, 
PSPNR TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
ICONS TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
XEKET TYPE STRING,
XEKES TYPE STRING,
XEKBE TYPE STRING,
MENGE_MSEG TYPE STRING,
BPMNG TYPE STRING,
SHKZG TYPE STRING,
WESBS TYPE STRING,
BPWES TYPE STRING,
BPRME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNMMQUANS_EKBE_PSP_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_CNMMQUANS_EKBE_PSP_STR-PSPNR sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-VBELN sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-POSNR sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-ICONS sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-MENGE sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-MEINS sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-EBELN sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-EBELP sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-XEKET sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-XEKES sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-XEKBE sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-MENGE_MSEG sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-BPMNG sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-SHKZG sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-WESBS sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-BPWES sy-vline 
WA_CNMMQUANS_EKBE_PSP_STR-BPRME sy-vline      INTO ld_text SEPARATED BY SPACE.

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