ABAP Select data from SAP table U_15078 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_15078 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_15078. 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_15078 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_15078 TYPE STANDARD TABLE OF U_15078,
      WA_U_15078 TYPE U_15078,
      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_15078> TYPE U_15078.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_15078.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_15078
  INTO TABLE IT_U_15078.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_15078
*  INTO TABLE @DATA(IT_U_150782).
*--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_15078 INDEX 1 INTO DATA(WA_U_150782).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_15078 ASSIGNING <U_15078>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_15078>-MANDT = 1.
<U_15078>-EBELN = 1.
<U_15078>-EBELP = 1.
<U_15078>-ABART = 1.
<U_15078>-ABRUF = 1.

ENDLOOP.

LOOP AT IT_U_15078 INTO WA_U_15078.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_15078-ABEFZ, sy-vline,
  WA_U_15078-ABRDT, sy-vline,
  WA_U_15078-LFDKD, sy-vline,
  WA_U_15078-LFNKD, sy-vline,
  WA_U_15078-LWEDT, sy-vline,
  WA_U_15078-LWEMG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_15078 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_15078 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_15078 INTO WA_U_15078.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15078-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15078-EBELN.
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_U_15078_STR, 
MANDT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ABART TYPE STRING,
ABRUF TYPE STRING,
ABEFZ TYPE STRING,
ABRDT TYPE STRING,
LFDKD TYPE STRING,
LFNKD TYPE STRING,
LWEDT TYPE STRING,
LWEMG TYPE STRING,
ABLLI TYPE STRING,
ERDAT TYPE STRING,
ABSFZ TYPE STRING,
ABFDE TYPE STRING,
ABMDE TYPE STRING,
ERUHR TYPE STRING,
ABRZT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_15078_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_15078_STR-MANDT sy-vline 
WA_U_15078_STR-EBELN sy-vline 
WA_U_15078_STR-EBELP sy-vline 
WA_U_15078_STR-ABART sy-vline 
WA_U_15078_STR-ABRUF sy-vline 
WA_U_15078_STR-ABEFZ sy-vline 
WA_U_15078_STR-ABRDT sy-vline 
WA_U_15078_STR-LFDKD sy-vline 
WA_U_15078_STR-LFNKD sy-vline 
WA_U_15078_STR-LWEDT sy-vline 
WA_U_15078_STR-LWEMG sy-vline 
WA_U_15078_STR-ABLLI sy-vline 
WA_U_15078_STR-ERDAT sy-vline 
WA_U_15078_STR-ABSFZ sy-vline 
WA_U_15078_STR-ABFDE sy-vline 
WA_U_15078_STR-ABMDE sy-vline 
WA_U_15078_STR-ERUHR sy-vline 
WA_U_15078_STR-ABRZT sy-vline      INTO ld_text SEPARATED BY SPACE.

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