ABAP Select data from SAP table /SAPAPO/RSP_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 /SAPAPO/RSP_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 /SAPAPO/RSP_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 /SAPAPO/RSP_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_/SAPAPO/RSP_SORT_FIELDS TYPE STANDARD TABLE OF /SAPAPO/RSP_SORT_FIELDS,
      WA_/SAPAPO/RSP_SORT_FIELDS TYPE /SAPAPO/RSP_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: </SAPAPO/RSP_SORT_FIELDS> TYPE /SAPAPO/RSP_SORT_FIELDS.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/RSP_SORT_FIELDS
  INTO TABLE IT_/SAPAPO/RSP_SORT_FIELDS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/RSP_SORT_FIELDS
*  INTO TABLE @DATA(IT_/SAPAPO/RSP_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_/SAPAPO/RSP_SORT_FIELDS INDEX 1 INTO DATA(WA_/SAPAPO/RSP_SORT_FIELDS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/RSP_SORT_FIELDS ASSIGNING </SAPAPO/RSP_SORT_FIELDS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/RSP_SORT_FIELDS>-DELNR = 1.
</SAPAPO/RSP_SORT_FIELDS>-DELPS = 1.
</SAPAPO/RSP_SORT_FIELDS>-MATNR = 1.
</SAPAPO/RSP_SORT_FIELDS>-LOCNO = 1.
</SAPAPO/RSP_SORT_FIELDS>-FIXED = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/RSP_SORT_FIELDS INTO WA_/SAPAPO/RSP_SORT_FIELDS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/RSP_SORT_FIELDS-RQDAT, sy-vline,
  WA_/SAPAPO/RSP_SORT_FIELDS-STARTDAT, sy-vline,
  WA_/SAPAPO/RSP_SORT_FIELDS-ENDDAT, sy-vline,
  WA_/SAPAPO/RSP_SORT_FIELDS-PRIORITY, sy-vline,
  WA_/SAPAPO/RSP_SORT_FIELDS-STATUS, sy-vline,
  WA_/SAPAPO/RSP_SORT_FIELDS-CREATION_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/RSP_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_/SAPAPO/RSP_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_/SAPAPO/RSP_SORT_FIELDS INTO WA_/SAPAPO/RSP_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_/SAPAPO/RSP_SORT_FIELDS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/RSP_SORT_FIELDS-MATNR.
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_/SAPAPO/RSP_SORT_FIELDS_STR, 
DELNR TYPE STRING,
DELPS TYPE STRING,
MATNR TYPE STRING,
LOCNO TYPE STRING,
FIXED TYPE STRING,
RQDAT TYPE STRING,
STARTDAT TYPE STRING,
ENDDAT TYPE STRING,
PRIORITY TYPE STRING,
STATUS TYPE STRING,
CREATION_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/RSP_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_/SAPAPO/RSP_SORT_FIELDS_STR-DELNR sy-vline 
WA_/SAPAPO/RSP_SORT_FIELDS_STR-DELPS sy-vline 
WA_/SAPAPO/RSP_SORT_FIELDS_STR-MATNR sy-vline 
WA_/SAPAPO/RSP_SORT_FIELDS_STR-LOCNO sy-vline 
WA_/SAPAPO/RSP_SORT_FIELDS_STR-FIXED sy-vline 
WA_/SAPAPO/RSP_SORT_FIELDS_STR-RQDAT sy-vline 
WA_/SAPAPO/RSP_SORT_FIELDS_STR-STARTDAT sy-vline 
WA_/SAPAPO/RSP_SORT_FIELDS_STR-ENDDAT sy-vline 
WA_/SAPAPO/RSP_SORT_FIELDS_STR-PRIORITY sy-vline 
WA_/SAPAPO/RSP_SORT_FIELDS_STR-STATUS sy-vline 
WA_/SAPAPO/RSP_SORT_FIELDS_STR-CREATION_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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