ABAP Select data from SAP table /SAPAPO/RTOUI_COMPONENT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/RTOUI_COMPONENT 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 /SAPAPO/RTOUI_COMPONENT. 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 /SAPAPO/RTOUI_COMPONENT 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_/SAPAPO/RTOUI_COMPONENT TYPE STANDARD TABLE OF /SAPAPO/RTOUI_COMPONENT,
      WA_/SAPAPO/RTOUI_COMPONENT TYPE /SAPAPO/RTOUI_COMPONENT,
      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: </SAPAPO/RTOUI_COMPONENT> TYPE /SAPAPO/RTOUI_COMPONENT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/RTOUI_COMPONENT
  INTO TABLE IT_/SAPAPO/RTOUI_COMPONENT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/RTOUI_COMPONENT
*  INTO TABLE @DATA(IT_/SAPAPO/RTOUI_COMPONENT2).
*--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_/SAPAPO/RTOUI_COMPONENT INDEX 1 INTO DATA(WA_/SAPAPO/RTOUI_COMPONENT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/RTOUI_COMPONENT ASSIGNING </SAPAPO/RTOUI_COMPONENT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/RTOUI_COMPONENT>-DETAIL = 1.
</SAPAPO/RTOUI_COMPONENT>-SORT = 1.
</SAPAPO/RTOUI_COMPONENT>-MATNR = 1.
</SAPAPO/RTOUI_COMPONENT>-MAKTX = 1.
</SAPAPO/RTOUI_COMPONENT>-LOCNO = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/RTOUI_COMPONENT INTO WA_/SAPAPO/RTOUI_COMPONENT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/RTOUI_COMPONENT-LOCTX, sy-vline,
  WA_/SAPAPO/RTOUI_COMPONENT-PHANTOMASSY, sy-vline,
  WA_/SAPAPO/RTOUI_COMPONENT-ASSEMBLY, sy-vline,
  WA_/SAPAPO/RTOUI_COMPONENT-DATE_FROM, sy-vline,
  WA_/SAPAPO/RTOUI_COMPONENT-DATE_TO, sy-vline,
  WA_/SAPAPO/RTOUI_COMPONENT-AENNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/RTOUI_COMPONENT 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_/SAPAPO/RTOUI_COMPONENT 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_/SAPAPO/RTOUI_COMPONENT INTO WA_/SAPAPO/RTOUI_COMPONENT.


*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 AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/RTOUI_COMPONENT-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/RTOUI_COMPONENT-AENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_VAR
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/RTOUI_COMPONENT-UNIT_VAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/RTOUI_COMPONENT-UNIT_VAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_FIX
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/RTOUI_COMPONENT-UNIT_FIX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/RTOUI_COMPONENT-UNIT_FIX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARENT_AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/RTOUI_COMPONENT-PARENT_AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/RTOUI_COMPONENT-PARENT_AENNR.
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_/SAPAPO/RTOUI_COMPONENT_STR, 
DETAIL TYPE STRING,
SORT TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
LOCNO TYPE STRING,
LOCTX TYPE STRING,
PHANTOMASSY TYPE STRING,
ASSEMBLY TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
AENNR TYPE STRING,
ACTNR TYPE STRING,
ACTNAME TYPE STRING,
IOIND TYPE STRING,
IS_MASTER TYPE STRING,
CONS_VAR TYPE STRING,
UNIT_VAR TYPE STRING,
CONS_FIX TYPE STRING,
UNIT_FIX TYPE STRING,
NETKZ TYPE STRING,
MATCO TYPE STRING,
CCODE TYPE STRING,
KNOBJ_ICON TYPE STRING,
KNOBJ TYPE STRING,
CUOBJ_ICON TYPE STRING,
CUOBJ TYPE STRING,
PENAL TYPE STRING,
ALPST TYPE STRING,
ALPRF TYPE STRING,
UPROB TYPE STRING,
SUBLOC TYPE STRING,
SUBLOC_IPPEPPDS TYPE STRING,
SUBLOC_PROD TYPE STRING,
PRVBE TYPE STRING,
AEXPL TYPE STRING,
UOMFAC TYPE STRING,
CONTI_SCHEDULING TYPE STRING,
OFFSET_RELATION TYPE STRING,
OFFSET_VALUE TYPE STRING,
OFFSET_IN_PERCENT TYPE STRING,
SCHEDULE_OFFSET TYPE STRING,
POS_NO TYPE STRING,
PARENT_POS_NO TYPE STRING,
NUM_COLORED_PV TYPE STRING,
TDPP_FLAG TYPE STRING,
IPPE_NODE TYPE STRING,
RPNAME TYPE STRING,
BOMID TYPE STRING,
MATID TYPE STRING,
LOCID TYPE STRING,
ROW_ID TYPE STRING,
ROWKEY TYPE STRING,
PARENT_BOMID TYPE STRING,
PARENT_MATID TYPE STRING,
PARENT_AENNR TYPE STRING,
PARENT_ROWKEY TYPE STRING,
ADD_FIELDS TYPE STRING,
%%SAPDUMMYUNIT TYPE STRING,
%%SAPDUMMYCUKY TYPE STRING,
ABL_ZAHL TYPE STRING,
FIX_AS_E TYPE STRING,
FIX_AS_J TYPE STRING,
FIX_AS_L TYPE STRING,
MAX_FERTL TYPE STRING,
MET_LRCH TYPE STRING,
RUNDFAKT TYPE STRING,
CONFR TYPE STRING,
CDP_CLASS TYPE STRING,
KLART TYPE STRING,
VALUATION_INDEX TYPE STRING,
REQ_CLASS TYPE STRING,
STYLETBL TYPE STRING,
PLIFZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/RTOUI_COMPONENT_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_/SAPAPO/RTOUI_COMPONENT_STR-DETAIL sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-SORT sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-MATNR sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-MAKTX sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-LOCNO sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-LOCTX sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-PHANTOMASSY sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-ASSEMBLY sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-DATE_FROM sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-DATE_TO sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-AENNR sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-ACTNR sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-ACTNAME sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-IOIND sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-IS_MASTER sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-CONS_VAR sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-UNIT_VAR sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-CONS_FIX sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-UNIT_FIX sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-NETKZ sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-MATCO sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-CCODE sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-KNOBJ_ICON sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-KNOBJ sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-CUOBJ_ICON sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-CUOBJ sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-PENAL sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-ALPST sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-ALPRF sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-UPROB sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-SUBLOC sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-SUBLOC_IPPEPPDS sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-SUBLOC_PROD sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-PRVBE sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-AEXPL sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-UOMFAC sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-CONTI_SCHEDULING sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-OFFSET_RELATION sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-OFFSET_VALUE sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-OFFSET_IN_PERCENT sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-SCHEDULE_OFFSET sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-POS_NO sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-PARENT_POS_NO sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-NUM_COLORED_PV sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-TDPP_FLAG sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-IPPE_NODE sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-RPNAME sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-BOMID sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-MATID sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-LOCID sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-ROW_ID sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-ROWKEY sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-PARENT_BOMID sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-PARENT_MATID sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-PARENT_AENNR sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-PARENT_ROWKEY sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-ADD_FIELDS sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-%%SAPDUMMYUNIT sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-%%SAPDUMMYCUKY sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-ABL_ZAHL sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-FIX_AS_E sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-FIX_AS_J sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-FIX_AS_L sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-MAX_FERTL sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-MET_LRCH sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-RUNDFAKT sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-CONFR sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-CDP_CLASS sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-KLART sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-VALUATION_INDEX sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-REQ_CLASS sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-STYLETBL sy-vline 
WA_/SAPAPO/RTOUI_COMPONENT_STR-PLIFZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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