ABAP Select data from SAP table BWCO_MD_BPROC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BWCO_MD_BPROC
*  INTO TABLE @DATA(IT_BWCO_MD_BPROC2).
*--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_BWCO_MD_BPROC INDEX 1 INTO DATA(WA_BWCO_MD_BPROC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BWCO_MD_BPROC>-KOKRS = 1.
<BWCO_MD_BPROC>-PRZNR = 1.
<BWCO_MD_BPROC>-DATETO = 1.
<BWCO_MD_BPROC>-DATEFROM = 1.
<BWCO_MD_BPROC>-PRART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BWCO_MD_BPROC-PRTYP, sy-vline,
  WA_BWCO_MD_BPROC-OWAER, sy-vline,
  WA_BWCO_MD_BPROC-VERAP, sy-vline,
  WA_BWCO_MD_BPROC-BUKRS, sy-vline,
  WA_BWCO_MD_BPROC-GSBER, sy-vline,
  WA_BWCO_MD_BPROC-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BWCO_MD_BPROC 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_BWCO_MD_BPROC 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_BWCO_MD_BPROC INTO WA_BWCO_MD_BPROC.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field DRVTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BWCO_MD_BPROC-DRVTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWCO_MD_BPROC-DRVTP.
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_BWCO_MD_BPROC_STR, 
KOKRS TYPE STRING,
PRZNR TYPE STRING,
DATETO TYPE STRING,
DATEFROM TYPE STRING,
PRART TYPE STRING,
PRTYP TYPE STRING,
OWAER TYPE STRING,
VERAP TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
WERKS TYPE STRING,
PRCTR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
ATTRI TYPE STRING,
KOSTL TYPE STRING,
LEINH TYPE STRING,
AUSEH TYPE STRING,
VKSTA TYPE STRING,
CBRKE TYPE STRING,
CBRKI TYPE STRING,
CBART TYPE STRING,
DRVTP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BWCO_MD_BPROC_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_BWCO_MD_BPROC_STR-KOKRS sy-vline 
WA_BWCO_MD_BPROC_STR-PRZNR sy-vline 
WA_BWCO_MD_BPROC_STR-DATETO sy-vline 
WA_BWCO_MD_BPROC_STR-DATEFROM sy-vline 
WA_BWCO_MD_BPROC_STR-PRART sy-vline 
WA_BWCO_MD_BPROC_STR-PRTYP sy-vline 
WA_BWCO_MD_BPROC_STR-OWAER sy-vline 
WA_BWCO_MD_BPROC_STR-VERAP sy-vline 
WA_BWCO_MD_BPROC_STR-BUKRS sy-vline 
WA_BWCO_MD_BPROC_STR-GSBER sy-vline 
WA_BWCO_MD_BPROC_STR-WERKS sy-vline 
WA_BWCO_MD_BPROC_STR-PRCTR sy-vline 
WA_BWCO_MD_BPROC_STR-VKORG sy-vline 
WA_BWCO_MD_BPROC_STR-VTWEG sy-vline 
WA_BWCO_MD_BPROC_STR-SPART sy-vline 
WA_BWCO_MD_BPROC_STR-ATTRI sy-vline 
WA_BWCO_MD_BPROC_STR-KOSTL sy-vline 
WA_BWCO_MD_BPROC_STR-LEINH sy-vline 
WA_BWCO_MD_BPROC_STR-AUSEH sy-vline 
WA_BWCO_MD_BPROC_STR-VKSTA sy-vline 
WA_BWCO_MD_BPROC_STR-CBRKE sy-vline 
WA_BWCO_MD_BPROC_STR-CBRKI sy-vline 
WA_BWCO_MD_BPROC_STR-CBART sy-vline 
WA_BWCO_MD_BPROC_STR-DRVTP sy-vline      INTO ld_text SEPARATED BY SPACE.

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