ABAP Select data from SAP table U_15255 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_15255 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_15255. 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_15255 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_15255 TYPE STANDARD TABLE OF U_15255,
      WA_U_15255 TYPE U_15255,
      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_15255> TYPE U_15255.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_15255.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_15255
  INTO TABLE IT_U_15255.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_15255
*  INTO TABLE @DATA(IT_U_152552).
*--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_15255 INDEX 1 INTO DATA(WA_U_152552).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_15255 ASSIGNING <U_15255>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_15255>-MANDT = 1.
<U_15255>-BEDID = 1.
<U_15255>-BEDZL = 1.
<U_15255>-CANUM = 1.
<U_15255>-ARBID = 1.

ENDLOOP.

LOOP AT IT_U_15255 INTO WA_U_15255.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_15255-TYPKZ, sy-vline,
  WA_U_15255-OBJKZ, sy-vline,
  WA_U_15255-KAPID, sy-vline,
  WA_U_15255-BEDKZ, sy-vline,
  WA_U_15255-KRUESOLL, sy-vline,
  WA_U_15255-KRUEREST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_15255 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_15255 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_15255 INTO WA_U_15255.


*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 CUNIT, internal->external for field KEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_15255-KEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15255-KEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15255-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15255-PLNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15255-PLNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15255-PLNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNFL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15255-PLNFL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15255-PLNFL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_U_15255-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15255-VORNR.
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_15255_STR, 
MANDT TYPE STRING,
BEDID TYPE STRING,
BEDZL TYPE STRING,
CANUM TYPE STRING,
ARBID TYPE STRING,
TYPKZ TYPE STRING,
OBJKZ TYPE STRING,
KAPID TYPE STRING,
BEDKZ TYPE STRING,
KRUESOLL TYPE STRING,
KRUEREST TYPE STRING,
KBEASOLL TYPE STRING,
KBEAREST TYPE STRING,
KABRSOLL TYPE STRING,
KABRREST TYPE STRING,
KEINH TYPE STRING,
FSTAD TYPE STRING,
FSTAU TYPE STRING,
FENDD TYPE STRING,
FENDU TYPE STRING,
SSTAD TYPE STRING,
SSTAU TYPE STRING,
SENDD TYPE STRING,
SENDU TYPE STRING,
ISTAD TYPE STRING,
ISTAU TYPE STRING,
IENDD TYPE STRING,
IENDU TYPE STRING,
PENDD TYPE STRING,
PENDU TYPE STRING,
ISPLI TYPE STRING,
KPVER TYPE STRING,
OBSTA TYPE STRING,
AUFPL TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ZAEHL TYPE STRING,
PLNFL TYPE STRING,
ZAEHF TYPE STRING,
PLNKN TYPE STRING,
ZAEHP TYPE STRING,
VORNR TYPE STRING,
OTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_15255_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_15255_STR-MANDT sy-vline 
WA_U_15255_STR-BEDID sy-vline 
WA_U_15255_STR-BEDZL sy-vline 
WA_U_15255_STR-CANUM sy-vline 
WA_U_15255_STR-ARBID sy-vline 
WA_U_15255_STR-TYPKZ sy-vline 
WA_U_15255_STR-OBJKZ sy-vline 
WA_U_15255_STR-KAPID sy-vline 
WA_U_15255_STR-BEDKZ sy-vline 
WA_U_15255_STR-KRUESOLL sy-vline 
WA_U_15255_STR-KRUEREST sy-vline 
WA_U_15255_STR-KBEASOLL sy-vline 
WA_U_15255_STR-KBEAREST sy-vline 
WA_U_15255_STR-KABRSOLL sy-vline 
WA_U_15255_STR-KABRREST sy-vline 
WA_U_15255_STR-KEINH sy-vline 
WA_U_15255_STR-FSTAD sy-vline 
WA_U_15255_STR-FSTAU sy-vline 
WA_U_15255_STR-FENDD sy-vline 
WA_U_15255_STR-FENDU sy-vline 
WA_U_15255_STR-SSTAD sy-vline 
WA_U_15255_STR-SSTAU sy-vline 
WA_U_15255_STR-SENDD sy-vline 
WA_U_15255_STR-SENDU sy-vline 
WA_U_15255_STR-ISTAD sy-vline 
WA_U_15255_STR-ISTAU sy-vline 
WA_U_15255_STR-IENDD sy-vline 
WA_U_15255_STR-IENDU sy-vline 
WA_U_15255_STR-PENDD sy-vline 
WA_U_15255_STR-PENDU sy-vline 
WA_U_15255_STR-ISPLI sy-vline 
WA_U_15255_STR-KPVER sy-vline 
WA_U_15255_STR-OBSTA sy-vline 
WA_U_15255_STR-AUFPL sy-vline 
WA_U_15255_STR-PLNTY sy-vline 
WA_U_15255_STR-PLNNR sy-vline 
WA_U_15255_STR-PLNAL sy-vline 
WA_U_15255_STR-ZAEHL sy-vline 
WA_U_15255_STR-PLNFL sy-vline 
WA_U_15255_STR-ZAEHF sy-vline 
WA_U_15255_STR-PLNKN sy-vline 
WA_U_15255_STR-ZAEHP sy-vline 
WA_U_15255_STR-VORNR sy-vline 
WA_U_15255_STR-OTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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