ABAP Select data from SAP table IDOC_INFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDOC_INFO
*  INTO TABLE @DATA(IT_IDOC_INFO2).
*--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_IDOC_INFO INDEX 1 INTO DATA(WA_IDOC_INFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDOC_INFO>-SITE = 1.
<IDOC_INFO>-CHECKTIME = 1.
<IDOC_INFO>-CHECKTIME2 = 1.
<IDOC_INFO>-CHECKTIME3 = 1.
<IDOC_INFO>-DLDNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDOC_INFO-VERSNR, sy-vline,
  WA_IDOC_INFO-LFDNR, sy-vline,
  WA_IDOC_INFO-MAX_LFDNR, sy-vline,
  WA_IDOC_INFO-GESST, sy-vline,
  WA_IDOC_INFO-SEG_COUNTER, sy-vline,
  WA_IDOC_INFO-ART_COUNTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDOC_INFO 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_IDOC_INFO 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_IDOC_INFO INTO WA_IDOC_INFO.


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

*Conversion exit SPDEV, internal->external for field TDDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_IDOC_INFO-TDDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDOC_INFO-TDDEST.
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_IDOC_INFO_STR, 
SITE TYPE STRING,
CHECKTIME TYPE STRING,
CHECKTIME2 TYPE STRING,
CHECKTIME3 TYPE STRING,
DLDNR TYPE STRING,
VERSNR TYPE STRING,
LFDNR TYPE STRING,
MAX_LFDNR TYPE STRING,
GESST TYPE STRING,
SEG_COUNTER TYPE STRING,
ART_COUNTER TYPE STRING,
IDOC_DATA TYPE STRING,
POSITION_DATA TYPE STRING,
LAYOUT_MODULES TYPE STRING,
T_SITE_GROUPS TYPE STRING,
PROFILE TYPE STRING,
MANDT TYPE STRING,
BBPRO TYPE STRING,
BBTYP TYPE STRING,
BBMODS TYPE STRING,
BSORT TYPE STRING,
EKOAR TYPE STRING,
BBRED TYPE STRING,
BBSTR TYPE STRING,
BBROW TYPE STRING,
BBVVK TYPE STRING,
BSORL TYPE STRING,
BBETI TYPE STRING,
LABNT TYPE STRING,
RECDT TYPE STRING,
TDFORM TYPE STRING,
TDDEST TYPE STRING,
SLPRN TYPE STRING,
VENDORINF TYPE STRING,
EXT_CHANGEINF TYPE STRING,
LAYMODUSE TYPE STRING,
LAYMOD_VER_USE TYPE STRING,
NO_DIRECT_READ TYPE STRING,
DIRECT_READ_MULTI_ACCESS TYPE STRING,
NO_LEAN_SUPPLIER TYPE STRING,
DELETION_SETS TYPE STRING,
NEW_LIST_MOD TYPE STRING,
NOT_SEND_LIST_COND TYPE STRING,
NOT_CHECK_SALES_PER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDOC_INFO_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_IDOC_INFO_STR-SITE sy-vline 
WA_IDOC_INFO_STR-CHECKTIME sy-vline 
WA_IDOC_INFO_STR-CHECKTIME2 sy-vline 
WA_IDOC_INFO_STR-CHECKTIME3 sy-vline 
WA_IDOC_INFO_STR-DLDNR sy-vline 
WA_IDOC_INFO_STR-VERSNR sy-vline 
WA_IDOC_INFO_STR-LFDNR sy-vline 
WA_IDOC_INFO_STR-MAX_LFDNR sy-vline 
WA_IDOC_INFO_STR-GESST sy-vline 
WA_IDOC_INFO_STR-SEG_COUNTER sy-vline 
WA_IDOC_INFO_STR-ART_COUNTER sy-vline 
WA_IDOC_INFO_STR-IDOC_DATA sy-vline 
WA_IDOC_INFO_STR-POSITION_DATA sy-vline 
WA_IDOC_INFO_STR-LAYOUT_MODULES sy-vline 
WA_IDOC_INFO_STR-T_SITE_GROUPS sy-vline 
WA_IDOC_INFO_STR-PROFILE sy-vline 
WA_IDOC_INFO_STR-MANDT sy-vline 
WA_IDOC_INFO_STR-BBPRO sy-vline 
WA_IDOC_INFO_STR-BBTYP sy-vline 
WA_IDOC_INFO_STR-BBMODS sy-vline 
WA_IDOC_INFO_STR-BSORT sy-vline 
WA_IDOC_INFO_STR-EKOAR sy-vline 
WA_IDOC_INFO_STR-BBRED sy-vline 
WA_IDOC_INFO_STR-BBSTR sy-vline 
WA_IDOC_INFO_STR-BBROW sy-vline 
WA_IDOC_INFO_STR-BBVVK sy-vline 
WA_IDOC_INFO_STR-BSORL sy-vline 
WA_IDOC_INFO_STR-BBETI sy-vline 
WA_IDOC_INFO_STR-LABNT sy-vline 
WA_IDOC_INFO_STR-RECDT sy-vline 
WA_IDOC_INFO_STR-TDFORM sy-vline 
WA_IDOC_INFO_STR-TDDEST sy-vline 
WA_IDOC_INFO_STR-SLPRN sy-vline 
WA_IDOC_INFO_STR-VENDORINF sy-vline 
WA_IDOC_INFO_STR-EXT_CHANGEINF sy-vline 
WA_IDOC_INFO_STR-LAYMODUSE sy-vline 
WA_IDOC_INFO_STR-LAYMOD_VER_USE sy-vline 
WA_IDOC_INFO_STR-NO_DIRECT_READ sy-vline 
WA_IDOC_INFO_STR-DIRECT_READ_MULTI_ACCESS sy-vline 
WA_IDOC_INFO_STR-NO_LEAN_SUPPLIER sy-vline 
WA_IDOC_INFO_STR-DELETION_SETS sy-vline 
WA_IDOC_INFO_STR-NEW_LIST_MOD sy-vline 
WA_IDOC_INFO_STR-NOT_SEND_LIST_COND sy-vline 
WA_IDOC_INFO_STR-NOT_CHECK_SALES_PER sy-vline      INTO ld_text SEPARATED BY SPACE.

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