ABAP Select data from SAP table U_17366 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_17366 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 U_17366. 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 U_17366 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_U_17366 TYPE STANDARD TABLE OF U_17366,
      WA_U_17366 TYPE U_17366,
      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: <U_17366> TYPE U_17366.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_17366.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_17366
  INTO TABLE IT_U_17366.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_17366
*  INTO TABLE @DATA(IT_U_173662).
*--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_U_17366 INDEX 1 INTO DATA(WA_U_173662).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_17366 ASSIGNING <U_17366>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_17366>-MANDT = 1.
<U_17366>-MOABW = 1.
<U_17366>-AWART = 1.
<U_17366>-GBART = 1.
<U_17366>-ENDDA = 1.

ENDLOOP.

LOOP AT IT_U_17366 INTO WA_U_17366.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_17366-BEGDA, sy-vline,
  WA_U_17366-FVMIN, sy-vline,
  WA_U_17366-FVMAX, sy-vline,
  WA_U_17366-FNMIN, sy-vline,
  WA_U_17366-FNMAX, sy-vline,
  WA_U_17366-ZEIN1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_17366 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_U_17366 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_U_17366 INTO WA_U_17366.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_U_17366_STR, 
MANDT TYPE STRING,
MOABW TYPE STRING,
AWART TYPE STRING,
GBART TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
FVMIN TYPE STRING,
FVMAX TYPE STRING,
FNMIN TYPE STRING,
FNMAX TYPE STRING,
ZEIN1 TYPE STRING,
DAUMA TYPE STRING,
DAUMI TYPE STRING,
ZEIN2 TYPE STRING,
GEWHR TYPE STRING,
ZEIN3 TYPE STRING,
ANTRF TYPE STRING,
ZEIN4 TYPE STRING,
GESCH TYPE STRING,
ENTMR TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
REAK1 TYPE STRING,
REAK2 TYPE STRING,
REAK3 TYPE STRING,
REAK4 TYPE STRING,
ZEIN5 TYPE STRING,
VORGN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_17366_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_U_17366_STR-MANDT sy-vline 
WA_U_17366_STR-MOABW sy-vline 
WA_U_17366_STR-AWART sy-vline 
WA_U_17366_STR-GBART sy-vline 
WA_U_17366_STR-ENDDA sy-vline 
WA_U_17366_STR-BEGDA sy-vline 
WA_U_17366_STR-FVMIN sy-vline 
WA_U_17366_STR-FVMAX sy-vline 
WA_U_17366_STR-FNMIN sy-vline 
WA_U_17366_STR-FNMAX sy-vline 
WA_U_17366_STR-ZEIN1 sy-vline 
WA_U_17366_STR-DAUMA sy-vline 
WA_U_17366_STR-DAUMI sy-vline 
WA_U_17366_STR-ZEIN2 sy-vline 
WA_U_17366_STR-GEWHR sy-vline 
WA_U_17366_STR-ZEIN3 sy-vline 
WA_U_17366_STR-ANTRF sy-vline 
WA_U_17366_STR-ZEIN4 sy-vline 
WA_U_17366_STR-GESCH sy-vline 
WA_U_17366_STR-ENTMR sy-vline 
WA_U_17366_STR-FLAG1 sy-vline 
WA_U_17366_STR-FLAG2 sy-vline 
WA_U_17366_STR-REAK1 sy-vline 
WA_U_17366_STR-REAK2 sy-vline 
WA_U_17366_STR-REAK3 sy-vline 
WA_U_17366_STR-REAK4 sy-vline 
WA_U_17366_STR-ZEIN5 sy-vline 
WA_U_17366_STR-VORGN sy-vline      INTO ld_text SEPARATED BY SPACE.

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