ABAP Select data from SAP table PMWCCP_BW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMWCCP_BW
*  INTO TABLE @DATA(IT_PMWCCP_BW2).
*--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_PMWCCP_BW INDEX 1 INTO DATA(WA_PMWCCP_BW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMWCCP_BW>-ARBPL = 1.
<PMWCCP_BW>-WERKS = 1.
<PMWCCP_BW>-VERWE = 1.
<PMWCCP_BW>-KAPAR = 1.
<PMWCCP_BW>-DATUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMWCCP_BW-WEEK, sy-vline,
  WA_PMWCCP_BW-TAGNR, sy-vline,
  WA_PMWCCP_BW-WDAY, sy-vline,
  WA_PMWCCP_BW-SCHNR, sy-vline,
  WA_PMWCCP_BW-BREAKDOWN, sy-vline,
  WA_PMWCCP_BW-ANZSH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMWCCP_BW 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_PMWCCP_BW 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_PMWCCP_BW INTO WA_PMWCCP_BW.


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

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_PMWCCP_BW-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMWCCP_BW-TPLNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMWCCP_BW-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMWCCP_BW-QMNUM.
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_PMWCCP_BW_STR, 
ARBPL TYPE STRING,
WERKS TYPE STRING,
VERWE TYPE STRING,
KAPAR TYPE STRING,
DATUM TYPE STRING,
WEEK TYPE STRING,
TAGNR TYPE STRING,
WDAY TYPE STRING,
SCHNR TYPE STRING,
BREAKDOWN TYPE STRING,
ANZSH TYPE STRING,
TPROG TYPE STRING,
ANZTG TYPE STRING,
ANZHL TYPE STRING,
BEGZT TYPE STRING,
ENDZT TYPE STRING,
EINZH TYPE STRING,
KAPEH TYPE STRING,
KAPAZ TYPE STRING,
PAUSE TYPE STRING,
NGRAD TYPE STRING,
KKOPF TYPE STRING,
UEBERLAST TYPE STRING,
TZONE TYPE STRING,
URCOD TYPE STRING,
AUSVN TYPE STRING,
AUZTV TYPE STRING,
AUSBS TYPE STRING,
AUZTB TYPE STRING,
LOFFT TYPE STRING,
TPLNR TYPE STRING,
EQUNR TYPE STRING,
QMNUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMWCCP_BW_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_PMWCCP_BW_STR-ARBPL sy-vline 
WA_PMWCCP_BW_STR-WERKS sy-vline 
WA_PMWCCP_BW_STR-VERWE sy-vline 
WA_PMWCCP_BW_STR-KAPAR sy-vline 
WA_PMWCCP_BW_STR-DATUM sy-vline 
WA_PMWCCP_BW_STR-WEEK sy-vline 
WA_PMWCCP_BW_STR-TAGNR sy-vline 
WA_PMWCCP_BW_STR-WDAY sy-vline 
WA_PMWCCP_BW_STR-SCHNR sy-vline 
WA_PMWCCP_BW_STR-BREAKDOWN sy-vline 
WA_PMWCCP_BW_STR-ANZSH sy-vline 
WA_PMWCCP_BW_STR-TPROG sy-vline 
WA_PMWCCP_BW_STR-ANZTG sy-vline 
WA_PMWCCP_BW_STR-ANZHL sy-vline 
WA_PMWCCP_BW_STR-BEGZT sy-vline 
WA_PMWCCP_BW_STR-ENDZT sy-vline 
WA_PMWCCP_BW_STR-EINZH sy-vline 
WA_PMWCCP_BW_STR-KAPEH sy-vline 
WA_PMWCCP_BW_STR-KAPAZ sy-vline 
WA_PMWCCP_BW_STR-PAUSE sy-vline 
WA_PMWCCP_BW_STR-NGRAD sy-vline 
WA_PMWCCP_BW_STR-KKOPF sy-vline 
WA_PMWCCP_BW_STR-UEBERLAST sy-vline 
WA_PMWCCP_BW_STR-TZONE sy-vline 
WA_PMWCCP_BW_STR-URCOD sy-vline 
WA_PMWCCP_BW_STR-AUSVN sy-vline 
WA_PMWCCP_BW_STR-AUZTV sy-vline 
WA_PMWCCP_BW_STR-AUSBS sy-vline 
WA_PMWCCP_BW_STR-AUZTB sy-vline 
WA_PMWCCP_BW_STR-LOFFT sy-vline 
WA_PMWCCP_BW_STR-TPLNR sy-vline 
WA_PMWCCP_BW_STR-EQUNR sy-vline 
WA_PMWCCP_BW_STR-QMNUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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