ABAP Select data from SAP table /ACCGO/STL_S_LIEN_UI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ACCGO/STL_S_LIEN_UI 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 /ACCGO/STL_S_LIEN_UI. 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 /ACCGO/STL_S_LIEN_UI 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_/ACCGO/STL_S_LIEN_UI TYPE STANDARD TABLE OF /ACCGO/STL_S_LIEN_UI,
      WA_/ACCGO/STL_S_LIEN_UI TYPE /ACCGO/STL_S_LIEN_UI,
      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: </ACCGO/STL_S_LIEN_UI> TYPE /ACCGO/STL_S_LIEN_UI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/STL_S_LIEN_UI
*  INTO TABLE @DATA(IT_/ACCGO/STL_S_LIEN_UI2).
*--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_/ACCGO/STL_S_LIEN_UI INDEX 1 INTO DATA(WA_/ACCGO/STL_S_LIEN_UI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/STL_S_LIEN_UI>-LIGHT = 1.
</ACCGO/STL_S_LIEN_UI>-PRO_STATUS = 1.
</ACCGO/STL_S_LIEN_UI>-LIFNR = 1.
</ACCGO/STL_S_LIEN_UI>-NAME1 = 1.
</ACCGO/STL_S_LIEN_UI>-NAME2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/STL_S_LIEN_UI-NAME3, sy-vline,
  WA_/ACCGO/STL_S_LIEN_UI-PSTLZ, sy-vline,
  WA_/ACCGO/STL_S_LIEN_UI-VENDOR_ADRNR, sy-vline,
  WA_/ACCGO/STL_S_LIEN_UI-VENDOR_LNHOLDER, sy-vline,
  WA_/ACCGO/STL_S_LIEN_UI-CREATED_BY, sy-vline,
  WA_/ACCGO/STL_S_LIEN_UI-CREATED_ON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/STL_S_LIEN_UI 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_/ACCGO/STL_S_LIEN_UI 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_/ACCGO/STL_S_LIEN_UI INTO WA_/ACCGO/STL_S_LIEN_UI.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/STL_S_LIEN_UI-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/STL_S_LIEN_UI-LIFNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit TSTLC, internal->external for field CREATED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/STL_S_LIEN_UI-CREATED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/STL_S_LIEN_UI-CREATED_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/STL_S_LIEN_UI-CHANGED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/STL_S_LIEN_UI-CHANGED_ON.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/STL_S_LIEN_UI-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/STL_S_LIEN_UI-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_/ACCGO/STL_S_LIEN_UI_STR, 
LIGHT TYPE STRING,
PRO_STATUS TYPE STRING,
LIFNR TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
PSTLZ TYPE STRING,
VENDOR_ADRNR TYPE STRING,
VENDOR_LNHOLDER TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKA TYPE STRING,
BANK_ADRNR TYPE STRING,
PROVZ TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
LIEN_GUID TYPE STRING,
LIEN TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
DESCRIPTION TYPE STRING,
DEVIANT_LNHOLDER TYPE STRING,
LAND1 TYPE STRING,
ZREGIO TYPE STRING,
E_DATE TYPE STRING,
END_DATE TYPE STRING,
LIEN_ACTIVE TYPE STRING,
SPLIT_PAY_ACTIVE TYPE STRING,
UPDKZ TYPE STRING,
CELLSTYLES TYPE STRING,
LIEN_FILE_NUMBER TYPE STRING,
L_HOLDER TYPE STRING,
LIEN_INACTIVATE_DATE TYPE STRING,
PHYSICAL_COMMODITY TYPE STRING,
CROP_YEAR TYPE STRING,
PERSON TYPE STRING,
LIEN_TYPE TYPE STRING,
ALT_PAYMENT TYPE STRING,
ALT_PYMT_DESC TYPE STRING,
ACTION_COPY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/STL_S_LIEN_UI_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_/ACCGO/STL_S_LIEN_UI_STR-LIGHT sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-PRO_STATUS sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-LIFNR sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-NAME1 sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-NAME2 sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-NAME3 sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-PSTLZ sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-VENDOR_ADRNR sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-VENDOR_LNHOLDER sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-CREATED_BY sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-CREATED_ON sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-CHANGED_BY sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-CHANGED_ON sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-BANKS sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-BANKL sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-BANKA sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-BANK_ADRNR sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-PROVZ sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-STRAS sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-ORT01 sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-LIEN_GUID sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-LIEN sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-MATNR sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-MAKTX sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-DESCRIPTION sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-DEVIANT_LNHOLDER sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-LAND1 sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-ZREGIO sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-E_DATE sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-END_DATE sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-LIEN_ACTIVE sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-SPLIT_PAY_ACTIVE sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-UPDKZ sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-CELLSTYLES sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-LIEN_FILE_NUMBER sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-L_HOLDER sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-LIEN_INACTIVATE_DATE sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-PHYSICAL_COMMODITY sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-CROP_YEAR sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-PERSON sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-LIEN_TYPE sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-ALT_PAYMENT sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-ALT_PYMT_DESC sy-vline 
WA_/ACCGO/STL_S_LIEN_UI_STR-ACTION_COPY sy-vline      INTO ld_text SEPARATED BY SPACE.

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