ABAP Select data from SAP table /SAPCE/FK_HLA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPCE/FK_HLA
*  INTO TABLE @DATA(IT_/SAPCE/FK_HLA2).
*--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_/SAPCE/FK_HLA INDEX 1 INTO DATA(WA_/SAPCE/FK_HLA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPCE/FK_HLA>-KEYZ1 = 1.
</SAPCE/FK_HLA>-KEYZ2 = 1.
</SAPCE/FK_HLA>-FIKEY = 1.
</SAPCE/FK_HLA>-BVRKO = 1.
</SAPCE/FK_HLA>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPCE/FK_HLA-GSBER, sy-vline,
  WA_/SAPCE/FK_HLA-BLART, sy-vline,
  WA_/SAPCE/FK_HLA-BUDAT, sy-vline,
  WA_/SAPCE/FK_HLA-BLDAT, sy-vline,
  WA_/SAPCE/FK_HLA-VALUT, sy-vline,
  WA_/SAPCE/FK_HLA-INFOF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPCE/FK_HLA 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_/SAPCE/FK_HLA 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_/SAPCE/FK_HLA INTO WA_/SAPCE/FK_HLA.


*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 BVRKO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/FK_HLA-BVRKO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/FK_HLA-BVRKO.
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_/SAPCE/FK_HLA_STR, 
KEYZ1 TYPE STRING,
KEYZ2 TYPE STRING,
FIKEY TYPE STRING,
BVRKO TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
BLART TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
VALUT TYPE STRING,
INFOF TYPE STRING,
XZAUS TYPE STRING,
INFOX TYPE STRING,
VVALUT TYPE STRING,
VVGEXT TYPE STRING,
VKWBTR TYPE STRING,
VHBKID TYPE STRING,
VHKTID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPCE/FK_HLA_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_/SAPCE/FK_HLA_STR-KEYZ1 sy-vline 
WA_/SAPCE/FK_HLA_STR-KEYZ2 sy-vline 
WA_/SAPCE/FK_HLA_STR-FIKEY sy-vline 
WA_/SAPCE/FK_HLA_STR-BVRKO sy-vline 
WA_/SAPCE/FK_HLA_STR-BUKRS sy-vline 
WA_/SAPCE/FK_HLA_STR-GSBER sy-vline 
WA_/SAPCE/FK_HLA_STR-BLART sy-vline 
WA_/SAPCE/FK_HLA_STR-BUDAT sy-vline 
WA_/SAPCE/FK_HLA_STR-BLDAT sy-vline 
WA_/SAPCE/FK_HLA_STR-VALUT sy-vline 
WA_/SAPCE/FK_HLA_STR-INFOF sy-vline 
WA_/SAPCE/FK_HLA_STR-XZAUS sy-vline 
WA_/SAPCE/FK_HLA_STR-INFOX sy-vline 
WA_/SAPCE/FK_HLA_STR-VVALUT sy-vline 
WA_/SAPCE/FK_HLA_STR-VVGEXT sy-vline 
WA_/SAPCE/FK_HLA_STR-VKWBTR sy-vline 
WA_/SAPCE/FK_HLA_STR-VHBKID sy-vline 
WA_/SAPCE/FK_HLA_STR-VHKTID sy-vline      INTO ld_text SEPARATED BY SPACE.

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