ABAP Select data from SAP table EITR_GRP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EITR_GRP
*  INTO TABLE @DATA(IT_EITR_GRP2).
*--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_EITR_GRP INDEX 1 INTO DATA(WA_EITR_GRP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EITR_GRP>-E_GROUP = 1.
<EITR_GRP>-MANDT = 1.
<EITR_GRP>-BELNR = 1.
<EITR_GRP>-BEL_ART = 1.
<EITR_GRP>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EITR_GRP-PORTION, sy-vline,
  WA_EITR_GRP-GPARTNER, sy-vline,
  WA_EITR_GRP-VKONT, sy-vline,
  WA_EITR_GRP-ABWVK, sy-vline,
  WA_EITR_GRP-ABRVORG, sy-vline,
  WA_EITR_GRP-VERTRAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EITR_GRP 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_EITR_GRP 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_EITR_GRP INTO WA_EITR_GRP.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EITR_GRP-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EITR_GRP-BELNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field SRCDOCNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EITR_GRP-SRCDOCNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EITR_GRP-SRCDOCNO.
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_EITR_GRP_STR, 
E_GROUP TYPE STRING,
MANDT TYPE STRING,
BELNR TYPE STRING,
BEL_ART TYPE STRING,
BUKRS TYPE STRING,
PORTION TYPE STRING,
GPARTNER TYPE STRING,
VKONT TYPE STRING,
ABWVK TYPE STRING,
ABRVORG TYPE STRING,
VERTRAG TYPE STRING,
SPARTE TYPE STRING,
MANOUTSORT TYPE STRING,
SIMULATION TYPE STRING,
TOBRELEASD TYPE STRING,
FAEDN TYPE STRING,
WAERS TYPE STRING,
SRCDOC_AMOUNT TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
INVOICE_FIRST TYPE STRING,
CRNAME TYPE STRING,
CRDATE TYPE STRING,
SRCDOC_CRDATE TYPE STRING,
SRCDOCCAT TYPE STRING,
SRCDOCTYPE TYPE STRING,
ISU2CI_CATEGORY TYPE STRING,
COLOGRP_BP TYPE STRING,
INVCG_ERR TYPE STRING,
SRCDOCNO TYPE STRING,
BEL_ART_T TYPE STRING,
SPARTE_T TYPE STRING,
PERIODE_T TYPE STRING,
SRCDOCCAT_T TYPE STRING,
BEGABRPE TYPE STRING,
ENDABRPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EITR_GRP_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_EITR_GRP_STR-E_GROUP sy-vline 
WA_EITR_GRP_STR-MANDT sy-vline 
WA_EITR_GRP_STR-BELNR sy-vline 
WA_EITR_GRP_STR-BEL_ART sy-vline 
WA_EITR_GRP_STR-BUKRS sy-vline 
WA_EITR_GRP_STR-PORTION sy-vline 
WA_EITR_GRP_STR-GPARTNER sy-vline 
WA_EITR_GRP_STR-VKONT sy-vline 
WA_EITR_GRP_STR-ABWVK sy-vline 
WA_EITR_GRP_STR-ABRVORG sy-vline 
WA_EITR_GRP_STR-VERTRAG sy-vline 
WA_EITR_GRP_STR-SPARTE sy-vline 
WA_EITR_GRP_STR-MANOUTSORT sy-vline 
WA_EITR_GRP_STR-SIMULATION sy-vline 
WA_EITR_GRP_STR-TOBRELEASD sy-vline 
WA_EITR_GRP_STR-FAEDN sy-vline 
WA_EITR_GRP_STR-WAERS sy-vline 
WA_EITR_GRP_STR-SRCDOC_AMOUNT sy-vline 
WA_EITR_GRP_STR-DATE_FROM sy-vline 
WA_EITR_GRP_STR-DATE_TO sy-vline 
WA_EITR_GRP_STR-INVOICE_FIRST sy-vline 
WA_EITR_GRP_STR-CRNAME sy-vline 
WA_EITR_GRP_STR-CRDATE sy-vline 
WA_EITR_GRP_STR-SRCDOC_CRDATE sy-vline 
WA_EITR_GRP_STR-SRCDOCCAT sy-vline 
WA_EITR_GRP_STR-SRCDOCTYPE sy-vline 
WA_EITR_GRP_STR-ISU2CI_CATEGORY sy-vline 
WA_EITR_GRP_STR-COLOGRP_BP sy-vline 
WA_EITR_GRP_STR-INVCG_ERR sy-vline 
WA_EITR_GRP_STR-SRCDOCNO sy-vline 
WA_EITR_GRP_STR-BEL_ART_T sy-vline 
WA_EITR_GRP_STR-SPARTE_T sy-vline 
WA_EITR_GRP_STR-PERIODE_T sy-vline 
WA_EITR_GRP_STR-SRCDOCCAT_T sy-vline 
WA_EITR_GRP_STR-BEGABRPE sy-vline 
WA_EITR_GRP_STR-ENDABRPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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