ABAP Select data from SAP table BWPS_S_PS into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP BWPS_S_PS 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_PS. 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_PS 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_PS TYPE STANDARD TABLE OF BWPS_S_PS,
      WA_BWPS_S_PS TYPE BWPS_S_PS,
      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_PS> TYPE BWPS_S_PS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BWPS_S_PS
*  INTO TABLE @DATA(IT_BWPS_S_PS2).
*--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_PS INDEX 1 INTO DATA(WA_BWPS_S_PS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BWPS_S_PS>-KOKRS = 1.
<BWPS_S_PS>-BUKRS = 1.
<BWPS_S_PS>-GSBER = 1.
<BWPS_S_PS>-WERKS = 1.
<BWPS_S_PS>-PRCTR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BWPS_S_PS-KOSTL, sy-vline,
  WA_BWPS_S_PS-PROF_DB, sy-vline,
  WA_BWPS_S_PS-PSPID, sy-vline,
  WA_BWPS_S_PS-POSID, sy-vline,
  WA_BWPS_S_PS-AUFNR, sy-vline,
  WA_BWPS_S_PS-VORNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BWPS_S_PS 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_PS 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_PS INTO WA_BWPS_S_PS.


*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 PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BWPS_S_PS-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWPS_S_PS-PRCTR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit PERI7, internal->external for field PERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_BWPS_S_PS-PERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWPS_S_PS-PERIO.
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_PS_STR, 
KOKRS TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
WERKS TYPE STRING,
PRCTR TYPE STRING,
KOSTL TYPE STRING,
PROF_DB TYPE STRING,
PSPID TYPE STRING,
POSID TYPE STRING,
AUFNR TYPE STRING,
VORNR TYPE STRING,
MATNR TYPE STRING,
VBELN TYPE STRING,
VERSN TYPE STRING,
GJAHR TYPE STRING,
PERIV TYPE STRING,
BELTP TYPE STRING,
VALUTYP TYPE STRING,
TRGKZ TYPE STRING,
WRTTP TYPE STRING,
VTYPE TYPE STRING,
VTDETAIL TYPE STRING,
VTSTAT TYPE STRING,
MEASTYPE TYPE STRING,
TWAERS TYPE STRING,
WAERS TYPE STRING,
OBJNR TYPE STRING,
OBTYP TYPE STRING,
KTEXT TYPE STRING,
ACPOS TYPE STRING,
PERIO TYPE STRING,
PERDE TYPE STRING,
VORGA TYPE STRING,
WP00 TYPE STRING,
WP01 TYPE STRING,
WP08 TYPE STRING,
WP09 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BWPS_S_PS_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_PS_STR-KOKRS sy-vline 
WA_BWPS_S_PS_STR-BUKRS sy-vline 
WA_BWPS_S_PS_STR-GSBER sy-vline 
WA_BWPS_S_PS_STR-WERKS sy-vline 
WA_BWPS_S_PS_STR-PRCTR sy-vline 
WA_BWPS_S_PS_STR-KOSTL sy-vline 
WA_BWPS_S_PS_STR-PROF_DB sy-vline 
WA_BWPS_S_PS_STR-PSPID sy-vline 
WA_BWPS_S_PS_STR-POSID sy-vline 
WA_BWPS_S_PS_STR-AUFNR sy-vline 
WA_BWPS_S_PS_STR-VORNR sy-vline 
WA_BWPS_S_PS_STR-MATNR sy-vline 
WA_BWPS_S_PS_STR-VBELN sy-vline 
WA_BWPS_S_PS_STR-VERSN sy-vline 
WA_BWPS_S_PS_STR-GJAHR sy-vline 
WA_BWPS_S_PS_STR-PERIV sy-vline 
WA_BWPS_S_PS_STR-BELTP sy-vline 
WA_BWPS_S_PS_STR-VALUTYP sy-vline 
WA_BWPS_S_PS_STR-TRGKZ sy-vline 
WA_BWPS_S_PS_STR-WRTTP sy-vline 
WA_BWPS_S_PS_STR-VTYPE sy-vline 
WA_BWPS_S_PS_STR-VTDETAIL sy-vline 
WA_BWPS_S_PS_STR-VTSTAT sy-vline 
WA_BWPS_S_PS_STR-MEASTYPE sy-vline 
WA_BWPS_S_PS_STR-TWAERS sy-vline 
WA_BWPS_S_PS_STR-WAERS sy-vline 
WA_BWPS_S_PS_STR-OBJNR sy-vline 
WA_BWPS_S_PS_STR-OBTYP sy-vline 
WA_BWPS_S_PS_STR-KTEXT sy-vline 
WA_BWPS_S_PS_STR-ACPOS sy-vline 
WA_BWPS_S_PS_STR-PERIO sy-vline 
WA_BWPS_S_PS_STR-PERDE sy-vline 
WA_BWPS_S_PS_STR-VORGA sy-vline 
WA_BWPS_S_PS_STR-WP00 sy-vline 
WA_BWPS_S_PS_STR-WP01 sy-vline 
WA_BWPS_S_PS_STR-WP08 sy-vline 
WA_BWPS_S_PS_STR-WP09 sy-vline      INTO ld_text SEPARATED BY SPACE.

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