ABAP Select data from SAP table INFO_UENAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INFO_UENAT
*  INTO TABLE @DATA(IT_INFO_UENAT2).
*--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_INFO_UENAT INDEX 1 INTO DATA(WA_INFO_UENAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INFO_UENAT>-ENTID = 1.
<INFO_UENAT>-AS4LOCAL = 1.
<INFO_UENAT>-EATTID = 1.
<INFO_UENAT>-AS4VERS = 1.
<INFO_UENAT>-DDLANGUAGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INFO_UENAT-AS4LOCAL1, sy-vline,
  WA_INFO_UENAT-AS4VERS1, sy-vline,
  WA_INFO_UENAT-EATYP, sy-vline,
  WA_INFO_UENAT-FLDCLASS, sy-vline,
  WA_INFO_UENAT-FLDCLASS2, sy-vline,
  WA_INFO_UENAT-FLDINH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INFO_UENAT 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_INFO_UENAT 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_INFO_UENAT INTO WA_INFO_UENAT.


*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 ISOLA, internal->external for field DDLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_INFO_UENAT-DDLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INFO_UENAT-DDLANGUAGE.
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_INFO_UENAT_STR, 
ENTID TYPE STRING,
AS4LOCAL TYPE STRING,
EATTID TYPE STRING,
AS4VERS TYPE STRING,
DDLANGUAGE TYPE STRING,
AS4LOCAL1 TYPE STRING,
AS4VERS1 TYPE STRING,
EATYP TYPE STRING,
FLDCLASS TYPE STRING,
FLDCLASS2 TYPE STRING,
FLDINH TYPE STRING,
FLDREL TYPE STRING,
ROLLNAME TYPE STRING,
EAPOS TYPE STRING,
FSTUSER TYPE STRING,
FSTDATE TYPE STRING,
FSTTIME TYPE STRING,
LSTUSER TYPE STRING,
LSTDATE TYPE STRING,
LSTTIME TYPE STRING,
LOESCHZ TYPE STRING,
FLG_FROMDD TYPE STRING,
DDTEXT TYPE STRING,
REPTEXT TYPE STRING,
SCRTEXT_S TYPE STRING,
SCRTEXT_M TYPE STRING,
SCRTEXT_L TYPE STRING,
DEVCLASS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INFO_UENAT_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_INFO_UENAT_STR-ENTID sy-vline 
WA_INFO_UENAT_STR-AS4LOCAL sy-vline 
WA_INFO_UENAT_STR-EATTID sy-vline 
WA_INFO_UENAT_STR-AS4VERS sy-vline 
WA_INFO_UENAT_STR-DDLANGUAGE sy-vline 
WA_INFO_UENAT_STR-AS4LOCAL1 sy-vline 
WA_INFO_UENAT_STR-AS4VERS1 sy-vline 
WA_INFO_UENAT_STR-EATYP sy-vline 
WA_INFO_UENAT_STR-FLDCLASS sy-vline 
WA_INFO_UENAT_STR-FLDCLASS2 sy-vline 
WA_INFO_UENAT_STR-FLDINH sy-vline 
WA_INFO_UENAT_STR-FLDREL sy-vline 
WA_INFO_UENAT_STR-ROLLNAME sy-vline 
WA_INFO_UENAT_STR-EAPOS sy-vline 
WA_INFO_UENAT_STR-FSTUSER sy-vline 
WA_INFO_UENAT_STR-FSTDATE sy-vline 
WA_INFO_UENAT_STR-FSTTIME sy-vline 
WA_INFO_UENAT_STR-LSTUSER sy-vline 
WA_INFO_UENAT_STR-LSTDATE sy-vline 
WA_INFO_UENAT_STR-LSTTIME sy-vline 
WA_INFO_UENAT_STR-LOESCHZ sy-vline 
WA_INFO_UENAT_STR-FLG_FROMDD sy-vline 
WA_INFO_UENAT_STR-DDTEXT sy-vline 
WA_INFO_UENAT_STR-REPTEXT sy-vline 
WA_INFO_UENAT_STR-SCRTEXT_S sy-vline 
WA_INFO_UENAT_STR-SCRTEXT_M sy-vline 
WA_INFO_UENAT_STR-SCRTEXT_L sy-vline 
WA_INFO_UENAT_STR-DEVCLASS sy-vline      INTO ld_text SEPARATED BY SPACE.

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