ABAP Select data from SAP table RDISB_STEER_OL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RDISB_STEER_OL
*  INTO TABLE @DATA(IT_RDISB_STEER_OL2).
*--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_RDISB_STEER_OL INDEX 1 INTO DATA(WA_RDISB_STEER_OL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RDISB_STEER_OL>-G_RBO = 1.
<RDISB_STEER_OL>-G_BOCAT = 1.
<RDISB_STEER_OL>-G_BOSUBCAT = 1.
<RDISB_STEER_OL>-G_WORKID = 1.
<RDISB_STEER_OL>-G_MESSAGEFLAGS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RDISB_STEER_OL-FLAG1, sy-vline,
  WA_RDISB_STEER_OL-INEG_RSALDO, sy-vline,
  WA_RDISB_STEER_OL-G_POSTING_APPL, sy-vline,
  WA_RDISB_STEER_OL-G_ACT_ALLOWED, sy-vline,
  WA_RDISB_STEER_OL-G_APPL_MODE, sy-vline,
  WA_RDISB_STEER_OL-G_APPL_MODE_ENTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RDISB_STEER_OL 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_RDISB_STEER_OL 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_RDISB_STEER_OL INTO WA_RDISB_STEER_OL.


*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_RDISB_STEER_OL_STR, 
G_RBO TYPE STRING,
G_BOCAT TYPE STRING,
G_BOSUBCAT TYPE STRING,
G_WORKID TYPE STRING,
G_MESSAGEFLAGS TYPE STRING,
FLAG1 TYPE STRING,
INEG_RSALDO TYPE STRING,
G_POSTING_APPL TYPE STRING,
G_ACT_ALLOWED TYPE STRING,
G_APPL_MODE TYPE STRING,
G_APPL_MODE_ENTRY TYPE STRING,
G_CALLING_COMPONENT TYPE STRING,
G_CALLING_APPL TYPE STRING,
G_GSART TYPE STRING,
G_CONF_OBJ TYPE STRING,
G_CONF_ACTIVE TYPE STRING,
G_CONF_ACTIVE_LOAN TYPE STRING,
G_CONF_ACTIVE_BO TYPE STRING,
G_CONF_REL_BO TYPE STRING,
G_NOTE_ASSIGNED TYPE STRING,
G_BO_CHANGED TYPE STRING,
G_TESTRUN TYPE STRING,
G_RANL_AUTH TYPE STRING,
G_RANL_LOCK TYPE STRING,
G_NTRANS TYPE STRING,
G_MINCL TYPE STRING,
G_NO_ENQUEUE TYPE STRING,
G_NO_CONFIRMATION TYPE STRING,
G_NO_INIT TYPE STRING,
G_TYPE_VZZBEPP_ND TYPE STRING,
G_FLG_DRAWING TYPE STRING,
G_FLG_DRAW_CHANGE TYPE STRING,
G_ASYNCRON_SAVE TYPE STRING,
G_NO_LOAN_INIT TYPE STRING,
G_FLG_NO_VDCFWAREHOUSE TYPE STRING,
G_FLG_NO_CORRESP TYPE STRING,
G_ADAPTFLAGS TYPE STRING,
IADAP_VCBTR TYPE STRING,
IADAP_ADISBGROSS TYPE STRING,
IADAP_ADISBNET TYPE STRING,
G_SZARTKZ TYPE STRING,
G_FLG_NO_LOAN_UPDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RDISB_STEER_OL_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_RDISB_STEER_OL_STR-G_RBO sy-vline 
WA_RDISB_STEER_OL_STR-G_BOCAT sy-vline 
WA_RDISB_STEER_OL_STR-G_BOSUBCAT sy-vline 
WA_RDISB_STEER_OL_STR-G_WORKID sy-vline 
WA_RDISB_STEER_OL_STR-G_MESSAGEFLAGS sy-vline 
WA_RDISB_STEER_OL_STR-FLAG1 sy-vline 
WA_RDISB_STEER_OL_STR-INEG_RSALDO sy-vline 
WA_RDISB_STEER_OL_STR-G_POSTING_APPL sy-vline 
WA_RDISB_STEER_OL_STR-G_ACT_ALLOWED sy-vline 
WA_RDISB_STEER_OL_STR-G_APPL_MODE sy-vline 
WA_RDISB_STEER_OL_STR-G_APPL_MODE_ENTRY sy-vline 
WA_RDISB_STEER_OL_STR-G_CALLING_COMPONENT sy-vline 
WA_RDISB_STEER_OL_STR-G_CALLING_APPL sy-vline 
WA_RDISB_STEER_OL_STR-G_GSART sy-vline 
WA_RDISB_STEER_OL_STR-G_CONF_OBJ sy-vline 
WA_RDISB_STEER_OL_STR-G_CONF_ACTIVE sy-vline 
WA_RDISB_STEER_OL_STR-G_CONF_ACTIVE_LOAN sy-vline 
WA_RDISB_STEER_OL_STR-G_CONF_ACTIVE_BO sy-vline 
WA_RDISB_STEER_OL_STR-G_CONF_REL_BO sy-vline 
WA_RDISB_STEER_OL_STR-G_NOTE_ASSIGNED sy-vline 
WA_RDISB_STEER_OL_STR-G_BO_CHANGED sy-vline 
WA_RDISB_STEER_OL_STR-G_TESTRUN sy-vline 
WA_RDISB_STEER_OL_STR-G_RANL_AUTH sy-vline 
WA_RDISB_STEER_OL_STR-G_RANL_LOCK sy-vline 
WA_RDISB_STEER_OL_STR-G_NTRANS sy-vline 
WA_RDISB_STEER_OL_STR-G_MINCL sy-vline 
WA_RDISB_STEER_OL_STR-G_NO_ENQUEUE sy-vline 
WA_RDISB_STEER_OL_STR-G_NO_CONFIRMATION sy-vline 
WA_RDISB_STEER_OL_STR-G_NO_INIT sy-vline 
WA_RDISB_STEER_OL_STR-G_TYPE_VZZBEPP_ND sy-vline 
WA_RDISB_STEER_OL_STR-G_FLG_DRAWING sy-vline 
WA_RDISB_STEER_OL_STR-G_FLG_DRAW_CHANGE sy-vline 
WA_RDISB_STEER_OL_STR-G_ASYNCRON_SAVE sy-vline 
WA_RDISB_STEER_OL_STR-G_NO_LOAN_INIT sy-vline 
WA_RDISB_STEER_OL_STR-G_FLG_NO_VDCFWAREHOUSE sy-vline 
WA_RDISB_STEER_OL_STR-G_FLG_NO_CORRESP sy-vline 
WA_RDISB_STEER_OL_STR-G_ADAPTFLAGS sy-vline 
WA_RDISB_STEER_OL_STR-IADAP_VCBTR sy-vline 
WA_RDISB_STEER_OL_STR-IADAP_ADISBGROSS sy-vline 
WA_RDISB_STEER_OL_STR-IADAP_ADISBNET sy-vline 
WA_RDISB_STEER_OL_STR-G_SZARTKZ sy-vline 
WA_RDISB_STEER_OL_STR-G_FLG_NO_LOAN_UPDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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