ABAP Select data from SAP table COWB_SORT_FIELDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COWB_SORT_FIELDS
*  INTO TABLE @DATA(IT_COWB_SORT_FIELDS2).
*--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_COWB_SORT_FIELDS INDEX 1 INTO DATA(WA_COWB_SORT_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COWB_SORT_FIELDS>-MATNR = 1.
<COWB_SORT_FIELDS>-ERFMG = 1.
<COWB_SORT_FIELDS>-ERFME = 1.
<COWB_SORT_FIELDS>-WERKS = 1.
<COWB_SORT_FIELDS>-LGORT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COWB_SORT_FIELDS-CHARG, sy-vline,
  WA_COWB_SORT_FIELDS-PRVBE, sy-vline,
  WA_COWB_SORT_FIELDS-POSNR, sy-vline,
  WA_COWB_SORT_FIELDS-SHKZG, sy-vline,
  WA_COWB_SORT_FIELDS-BWART, sy-vline,
  WA_COWB_SORT_FIELDS-GRUND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COWB_SORT_FIELDS 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_COWB_SORT_FIELDS 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_COWB_SORT_FIELDS INTO WA_COWB_SORT_FIELDS.


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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_COWB_SORT_FIELDS-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COWB_SORT_FIELDS-MEINS.
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_COWB_SORT_FIELDS_STR, 
MATNR TYPE STRING,
ERFMG TYPE STRING,
ERFME TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
PRVBE TYPE STRING,
POSNR TYPE STRING,
SHKZG TYPE STRING,
BWART TYPE STRING,
GRUND TYPE STRING,
SOBKZ TYPE STRING,
LIFNR TYPE STRING,
ENDKZ TYPE STRING,
AUFNR TYPE STRING,
VORNR TYPE STRING,
APLFL TYPE STRING,
SGTXT TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
BDMNG TYPE STRING,
MEINS TYPE STRING,
VMENG TYPE STRING,
BDTER TYPE STRING,
BDZTP TYPE STRING,
AUSCH TYPE STRING,
AVOAU TYPE STRING,
NETAU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COWB_SORT_FIELDS_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_COWB_SORT_FIELDS_STR-MATNR sy-vline 
WA_COWB_SORT_FIELDS_STR-ERFMG sy-vline 
WA_COWB_SORT_FIELDS_STR-ERFME sy-vline 
WA_COWB_SORT_FIELDS_STR-WERKS sy-vline 
WA_COWB_SORT_FIELDS_STR-LGORT sy-vline 
WA_COWB_SORT_FIELDS_STR-CHARG sy-vline 
WA_COWB_SORT_FIELDS_STR-PRVBE sy-vline 
WA_COWB_SORT_FIELDS_STR-POSNR sy-vline 
WA_COWB_SORT_FIELDS_STR-SHKZG sy-vline 
WA_COWB_SORT_FIELDS_STR-BWART sy-vline 
WA_COWB_SORT_FIELDS_STR-GRUND sy-vline 
WA_COWB_SORT_FIELDS_STR-SOBKZ sy-vline 
WA_COWB_SORT_FIELDS_STR-LIFNR sy-vline 
WA_COWB_SORT_FIELDS_STR-ENDKZ sy-vline 
WA_COWB_SORT_FIELDS_STR-AUFNR sy-vline 
WA_COWB_SORT_FIELDS_STR-VORNR sy-vline 
WA_COWB_SORT_FIELDS_STR-APLFL sy-vline 
WA_COWB_SORT_FIELDS_STR-SGTXT sy-vline 
WA_COWB_SORT_FIELDS_STR-RSNUM sy-vline 
WA_COWB_SORT_FIELDS_STR-RSPOS sy-vline 
WA_COWB_SORT_FIELDS_STR-BDMNG sy-vline 
WA_COWB_SORT_FIELDS_STR-MEINS sy-vline 
WA_COWB_SORT_FIELDS_STR-VMENG sy-vline 
WA_COWB_SORT_FIELDS_STR-BDTER sy-vline 
WA_COWB_SORT_FIELDS_STR-BDZTP sy-vline 
WA_COWB_SORT_FIELDS_STR-AUSCH sy-vline 
WA_COWB_SORT_FIELDS_STR-AVOAU sy-vline 
WA_COWB_SORT_FIELDS_STR-NETAU sy-vline      INTO ld_text SEPARATED BY SPACE.

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