ABAP Select data from SAP table FAC_DZGLDCHGD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAC_DZGLDCHGD
*  INTO TABLE @DATA(IT_FAC_DZGLDCHGD2).
*--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_FAC_DZGLDCHGD INDEX 1 INTO DATA(WA_FAC_DZGLDCHGD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAC_DZGLDCHGD>-MANDT = 1.
<FAC_DZGLDCHGD>-CHARTOFACCOUNT = 1.
<FAC_DZGLDCHGD>-GLACCOUNT = 1.
<FAC_DZGLDCHGD>-COMPANYCODE = 1.
<FAC_DZGLDCHGD>-CHANGEDOCOBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAC_DZGLDCHGD-CHANGEDOCOBJECTCLASS, sy-vline,
  WA_FAC_DZGLDCHGD-CHANGEDOCUMENT, sy-vline,
  WA_FAC_DZGLDCHGD-DATABASETABLE, sy-vline,
  WA_FAC_DZGLDCHGD-CHANGEDOCTABLEKEY, sy-vline,
  WA_FAC_DZGLDCHGD-CHANGEDOCDATABASETABLEFIELD, sy-vline,
  WA_FAC_DZGLDCHGD-CHANGEDOCITEMCHANGETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAC_DZGLDCHGD 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_FAC_DZGLDCHGD 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_FAC_DZGLDCHGD INTO WA_FAC_DZGLDCHGD.


*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_FAC_DZGLDCHGD-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_DZGLDCHGD-GLACCOUNT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ISOLA, internal->external for field CHANGEDOCLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_FAC_DZGLDCHGD-CHANGEDOCLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_DZGLDCHGD-CHANGEDOCLANGUAGE.
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_FAC_DZGLDCHGD_STR, 
MANDT TYPE STRING,
CHARTOFACCOUNT TYPE STRING,
GLACCOUNT TYPE STRING,
COMPANYCODE TYPE STRING,
CHANGEDOCOBJECT TYPE STRING,
CHANGEDOCOBJECTCLASS TYPE STRING,
CHANGEDOCUMENT TYPE STRING,
DATABASETABLE TYPE STRING,
CHANGEDOCTABLEKEY TYPE STRING,
CHANGEDOCDATABASETABLEFIELD TYPE STRING,
CHANGEDOCITEMCHANGETYPE TYPE STRING,
DATABASETABLETEXT TYPE STRING,
CHANGEDOCITEMCHANGETYPETEXT TYPE STRING,
FISCALYEARVARIANT TYPE STRING,
TEXT TYPE STRING,
CHANGEDOCNEWFIELDVALUE TYPE STRING,
CHANGEDOCPREVIOUSFIELDVALUE TYPE STRING,
CHANGEDOCPREVIOUSUNIT TYPE STRING,
CHANGEDOCNEWUNIT TYPE STRING,
CHANGEDOCPREVIOUSCURRENCY TYPE STRING,
CHANGEDOCNEWCURRENCY TYPE STRING,
CHANGEDOCTEXTISCHANGED TYPE STRING,
OUTPUTLENGTH TYPE STRING,
LANGUAGEISOCODE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
CHANGETRANSACTIONCODE TYPE STRING,
CHANGEDOCCHANGETYPE TYPE STRING,
CHANGEDOCLANGUAGE TYPE STRING,
LANGUAGENAME TYPE STRING,
SYSTEMCLIENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAC_DZGLDCHGD_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_FAC_DZGLDCHGD_STR-MANDT sy-vline 
WA_FAC_DZGLDCHGD_STR-CHARTOFACCOUNT sy-vline 
WA_FAC_DZGLDCHGD_STR-GLACCOUNT sy-vline 
WA_FAC_DZGLDCHGD_STR-COMPANYCODE sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCOBJECT sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCOBJECTCLASS sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCUMENT sy-vline 
WA_FAC_DZGLDCHGD_STR-DATABASETABLE sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCTABLEKEY sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCDATABASETABLEFIELD sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCITEMCHANGETYPE sy-vline 
WA_FAC_DZGLDCHGD_STR-DATABASETABLETEXT sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCITEMCHANGETYPETEXT sy-vline 
WA_FAC_DZGLDCHGD_STR-FISCALYEARVARIANT sy-vline 
WA_FAC_DZGLDCHGD_STR-TEXT sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCNEWFIELDVALUE sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCPREVIOUSFIELDVALUE sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCPREVIOUSUNIT sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCNEWUNIT sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCPREVIOUSCURRENCY sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCNEWCURRENCY sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCTEXTISCHANGED sy-vline 
WA_FAC_DZGLDCHGD_STR-OUTPUTLENGTH sy-vline 
WA_FAC_DZGLDCHGD_STR-LANGUAGEISOCODE sy-vline 
WA_FAC_DZGLDCHGD_STR-CREATEDBYUSER sy-vline 
WA_FAC_DZGLDCHGD_STR-CREATIONDATE sy-vline 
WA_FAC_DZGLDCHGD_STR-CREATIONTIME sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGETRANSACTIONCODE sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCCHANGETYPE sy-vline 
WA_FAC_DZGLDCHGD_STR-CHANGEDOCLANGUAGE sy-vline 
WA_FAC_DZGLDCHGD_STR-LANGUAGENAME sy-vline 
WA_FAC_DZGLDCHGD_STR-SYSTEMCLIENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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