ABAP Select data from SAP table IFIGLACCOUNTHN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFIGLACCOUNTHN
*  INTO TABLE @DATA(IT_IFIGLACCOUNTHN2).
*--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_IFIGLACCOUNTHN INDEX 1 INTO DATA(WA_IFIGLACCOUNTHN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFIGLACCOUNTHN>-MANDT = 1.
<IFIGLACCOUNTHN>-GLACCOUNTHIERARCHY = 1.
<IFIGLACCOUNTHN>-HIERARCHYNODE = 1.
<IFIGLACCOUNTHN>-VALIDITYENDDATE = 1.
<IFIGLACCOUNTHN>-PARENTNODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFIGLACCOUNTHN-HIERARCHYVERSION, sy-vline,
  WA_IFIGLACCOUNTHN-VALIDITYSTARTDATE, sy-vline,
  WA_IFIGLACCOUNTHN-CHARTOFACCOUNTS, sy-vline,
  WA_IFIGLACCOUNTHN-GLACCOUNT, sy-vline,
  WA_IFIGLACCOUNTHN-SEQUENCENUMBER, sy-vline,
  WA_IFIGLACCOUNTHN-HIERARCHYNODESEQUENCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFIGLACCOUNTHN 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_IFIGLACCOUNTHN 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_IFIGLACCOUNTHN INTO WA_IFIGLACCOUNTHN.


*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 GLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFIGLACCOUNTHN-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFIGLACCOUNTHN-GLACCOUNT.
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_IFIGLACCOUNTHN_STR, 
MANDT TYPE STRING,
GLACCOUNTHIERARCHY TYPE STRING,
HIERARCHYNODE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
PARENTNODE TYPE STRING,
HIERARCHYVERSION TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
GLACCOUNT TYPE STRING,
SEQUENCENUMBER TYPE STRING,
HIERARCHYNODESEQUENCE TYPE STRING,
HIERARCHYNODELEVEL TYPE STRING,
NODETYPE TYPE STRING,
SIGNISINVERTED TYPE STRING,
HIERARCHYNODEVAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFIGLACCOUNTHN_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_IFIGLACCOUNTHN_STR-MANDT sy-vline 
WA_IFIGLACCOUNTHN_STR-GLACCOUNTHIERARCHY sy-vline 
WA_IFIGLACCOUNTHN_STR-HIERARCHYNODE sy-vline 
WA_IFIGLACCOUNTHN_STR-VALIDITYENDDATE sy-vline 
WA_IFIGLACCOUNTHN_STR-PARENTNODE sy-vline 
WA_IFIGLACCOUNTHN_STR-HIERARCHYVERSION sy-vline 
WA_IFIGLACCOUNTHN_STR-VALIDITYSTARTDATE sy-vline 
WA_IFIGLACCOUNTHN_STR-CHARTOFACCOUNTS sy-vline 
WA_IFIGLACCOUNTHN_STR-GLACCOUNT sy-vline 
WA_IFIGLACCOUNTHN_STR-SEQUENCENUMBER sy-vline 
WA_IFIGLACCOUNTHN_STR-HIERARCHYNODESEQUENCE sy-vline 
WA_IFIGLACCOUNTHN_STR-HIERARCHYNODELEVEL sy-vline 
WA_IFIGLACCOUNTHN_STR-NODETYPE sy-vline 
WA_IFIGLACCOUNTHN_STR-SIGNISINVERTED sy-vline 
WA_IFIGLACCOUNTHN_STR-HIERARCHYNODEVAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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