ABAP Select data from SAP table ROIFOANLA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIFOANLA
*  INTO TABLE @DATA(IT_ROIFOANLA2).
*--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_ROIFOANLA INDEX 1 INTO DATA(WA_ROIFOANLA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIFOANLA>-MANDT = 1.
<ROIFOANLA>-PBLNR = 1.
<ROIFOANLA>-RNBT = 1.
<ROIFOANLA>-OBJPOS = 1.
<ROIFOANLA>-ERDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIFOANLA-ERZEIT, sy-vline,
  WA_ROIFOANLA-ERNAM, sy-vline,
  WA_ROIFOANLA-AEDAT, sy-vline,
  WA_ROIFOANLA-AEZEIT, sy-vline,
  WA_ROIFOANLA-AENAM, sy-vline,
  WA_ROIFOANLA-BLOIND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIFOANLA 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_ROIFOANLA 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_ROIFOANLA INTO WA_ROIFOANLA.


*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 PBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIFOANLA-PBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIFOANLA-PBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIFOANLA-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIFOANLA-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIFOANLA-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIFOANLA-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLKL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIFOANLA-ANLKL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIFOANLA-ANLKL.
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_ROIFOANLA_STR, 
MANDT TYPE STRING,
PBLNR TYPE STRING,
RNBT TYPE STRING,
OBJPOS TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
AENAM TYPE STRING,
BLOIND TYPE STRING,
DELIND TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
OBSTAT TYPE STRING,
ICSTAT TYPE STRING,
STASTX TYPE STRING,
STALTX TYPE STRING,
ANLKL TYPE STRING,
TXK50 TYPE STRING,
BUTXT TYPE STRING,
TXT50 TYPE STRING,
XANLGR TYPE STRING,
UPD_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIFOANLA_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_ROIFOANLA_STR-MANDT sy-vline 
WA_ROIFOANLA_STR-PBLNR sy-vline 
WA_ROIFOANLA_STR-RNBT sy-vline 
WA_ROIFOANLA_STR-OBJPOS sy-vline 
WA_ROIFOANLA_STR-ERDAT sy-vline 
WA_ROIFOANLA_STR-ERZEIT sy-vline 
WA_ROIFOANLA_STR-ERNAM sy-vline 
WA_ROIFOANLA_STR-AEDAT sy-vline 
WA_ROIFOANLA_STR-AEZEIT sy-vline 
WA_ROIFOANLA_STR-AENAM sy-vline 
WA_ROIFOANLA_STR-BLOIND sy-vline 
WA_ROIFOANLA_STR-DELIND sy-vline 
WA_ROIFOANLA_STR-BUKRS sy-vline 
WA_ROIFOANLA_STR-ANLN1 sy-vline 
WA_ROIFOANLA_STR-ANLN2 sy-vline 
WA_ROIFOANLA_STR-OBSTAT sy-vline 
WA_ROIFOANLA_STR-ICSTAT sy-vline 
WA_ROIFOANLA_STR-STASTX sy-vline 
WA_ROIFOANLA_STR-STALTX sy-vline 
WA_ROIFOANLA_STR-ANLKL sy-vline 
WA_ROIFOANLA_STR-TXK50 sy-vline 
WA_ROIFOANLA_STR-BUTXT sy-vline 
WA_ROIFOANLA_STR-TXT50 sy-vline 
WA_ROIFOANLA_STR-XANLGR sy-vline 
WA_ROIFOANLA_STR-UPD_FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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