ABAP Select data from SAP table BWPS_S_PSCO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BWPS_S_PSCO
*  INTO TABLE @DATA(IT_BWPS_S_PSCO2).
*--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_BWPS_S_PSCO INDEX 1 INTO DATA(WA_BWPS_S_PSCO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BWPS_S_PSCO>-OBJNR = 1.
<BWPS_S_PSCO>-PSPID = 1.
<BWPS_S_PSCO>-POSID = 1.
<BWPS_S_PSCO>-AUFNR = 1.
<BWPS_S_PSCO>-VBELN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BWPS_S_PSCO-VORNR, sy-vline,
  WA_BWPS_S_PSCO-ELEMENT, sy-vline,
  WA_BWPS_S_PSCO-FISCPER, sy-vline,
  WA_BWPS_S_PSCO-FISCVAR, sy-vline,
  WA_BWPS_S_PSCO-KOKRS, sy-vline,
  WA_BWPS_S_PSCO-PROF_DB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BWPS_S_PSCO 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_BWPS_S_PSCO 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_BWPS_S_PSCO INTO WA_BWPS_S_PSCO.


*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 ABPSN, internal->external for field PSPID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_BWPS_S_PSCO-PSPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWPS_S_PSCO-PSPID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_BWPS_S_PSCO-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWPS_S_PSCO-POSID.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_BWPS_S_PSCO-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWPS_S_PSCO-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field ELEMENT
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_BWPS_S_PSCO-ELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWPS_S_PSCO-ELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field FISCPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_BWPS_S_PSCO-FISCPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWPS_S_PSCO-FISCPER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_BWPS_S_PSCO-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWPS_S_PSCO-GJAHR.
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_BWPS_S_PSCO_STR, 
OBJNR TYPE STRING,
PSPID TYPE STRING,
POSID TYPE STRING,
AUFNR TYPE STRING,
VBELN TYPE STRING,
VORNR TYPE STRING,
ELEMENT TYPE STRING,
FISCPER TYPE STRING,
FISCVAR TYPE STRING,
KOKRS TYPE STRING,
PROF_DB TYPE STRING,
VTYPE TYPE STRING,
VTDETAIL TYPE STRING,
VTSTAT TYPE STRING,
VERSN TYPE STRING,
KSTAR TYPE STRING,
SEKNZ TYPE STRING,
RSPOBART TYPE STRING,
RSPAROBVAL TYPE STRING,
VALUTYP TYPE STRING,
MEASTYPE TYPE STRING,
SWG TYPE STRING,
SMEG TYPE STRING,
WAERS TYPE STRING,
CURTYPE TYPE STRING,
MEINH TYPE STRING,
TRGKZ TYPE STRING,
WRTTP TYPE STRING,
MATNR TYPE STRING,
GJAHR TYPE STRING,
PERIO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BWPS_S_PSCO_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_BWPS_S_PSCO_STR-OBJNR sy-vline 
WA_BWPS_S_PSCO_STR-PSPID sy-vline 
WA_BWPS_S_PSCO_STR-POSID sy-vline 
WA_BWPS_S_PSCO_STR-AUFNR sy-vline 
WA_BWPS_S_PSCO_STR-VBELN sy-vline 
WA_BWPS_S_PSCO_STR-VORNR sy-vline 
WA_BWPS_S_PSCO_STR-ELEMENT sy-vline 
WA_BWPS_S_PSCO_STR-FISCPER sy-vline 
WA_BWPS_S_PSCO_STR-FISCVAR sy-vline 
WA_BWPS_S_PSCO_STR-KOKRS sy-vline 
WA_BWPS_S_PSCO_STR-PROF_DB sy-vline 
WA_BWPS_S_PSCO_STR-VTYPE sy-vline 
WA_BWPS_S_PSCO_STR-VTDETAIL sy-vline 
WA_BWPS_S_PSCO_STR-VTSTAT sy-vline 
WA_BWPS_S_PSCO_STR-VERSN sy-vline 
WA_BWPS_S_PSCO_STR-KSTAR sy-vline 
WA_BWPS_S_PSCO_STR-SEKNZ sy-vline 
WA_BWPS_S_PSCO_STR-RSPOBART sy-vline 
WA_BWPS_S_PSCO_STR-RSPAROBVAL sy-vline 
WA_BWPS_S_PSCO_STR-VALUTYP sy-vline 
WA_BWPS_S_PSCO_STR-MEASTYPE sy-vline 
WA_BWPS_S_PSCO_STR-SWG sy-vline 
WA_BWPS_S_PSCO_STR-SMEG sy-vline 
WA_BWPS_S_PSCO_STR-WAERS sy-vline 
WA_BWPS_S_PSCO_STR-CURTYPE sy-vline 
WA_BWPS_S_PSCO_STR-MEINH sy-vline 
WA_BWPS_S_PSCO_STR-TRGKZ sy-vline 
WA_BWPS_S_PSCO_STR-WRTTP sy-vline 
WA_BWPS_S_PSCO_STR-MATNR sy-vline 
WA_BWPS_S_PSCO_STR-GJAHR sy-vline 
WA_BWPS_S_PSCO_STR-PERIO sy-vline      INTO ld_text SEPARATED BY SPACE.

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