ABAP Select data from SAP table RLOCAC_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 RLOCAC_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 RLOCAC_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 RLOCAC_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_RLOCAC_STEER_OL TYPE STANDARD TABLE OF RLOCAC_STEER_OL,
      WA_RLOCAC_STEER_OL TYPE RLOCAC_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: <RLOCAC_STEER_OL> TYPE RLOCAC_STEER_OL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RLOCAC_STEER_OL
*  INTO TABLE @DATA(IT_RLOCAC_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_RLOCAC_STEER_OL INDEX 1 INTO DATA(WA_RLOCAC_STEER_OL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RLOCAC_STEER_OL>-WORKID = 1.
<RLOCAC_STEER_OL>-GUID = 1.
<RLOCAC_STEER_OL>-ACTIVITY_ALLOWED = 1.
<RLOCAC_STEER_OL>-APPL_MODE = 1.
<RLOCAC_STEER_OL>-APPL_MODE_ENTRY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RLOCAC_STEER_OL-CALLING_COMP, sy-vline,
  WA_RLOCAC_STEER_OL-CONF_OBJ, sy-vline,
  WA_RLOCAC_STEER_OL-CONF_ACTIVE, sy-vline,
  WA_RLOCAC_STEER_OL-NOTE_ASSIGNED, sy-vline,
  WA_RLOCAC_STEER_OL-DATA_CHANGED, sy-vline,
  WA_RLOCAC_STEER_OL-TESTRUN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RLOCAC_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_RLOCAC_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_RLOCAC_STEER_OL INTO WA_RLOCAC_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.

*Conversion exit ALPHA, internal->external for field RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RLOCAC_STEER_OL-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLOCAC_STEER_OL-RANL.
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_RLOCAC_STEER_OL_STR, 
WORKID TYPE STRING,
GUID TYPE STRING,
ACTIVITY_ALLOWED TYPE STRING,
APPL_MODE TYPE STRING,
APPL_MODE_ENTRY TYPE STRING,
CALLING_COMP TYPE STRING,
CONF_OBJ TYPE STRING,
CONF_ACTIVE TYPE STRING,
NOTE_ASSIGNED TYPE STRING,
DATA_CHANGED TYPE STRING,
TESTRUN TYPE STRING,
RANL_AUTH TYPE STRING,
RANL_LOCK TYPE STRING,
NO_ENQUEUE TYPE STRING,
NO_CONFIRMATION TYPE STRING,
FLAG1 TYPE STRING,
INEG_RSALDO TYPE STRING,
MINCL TYPE STRING,
RANL TYPE STRING,
SOBJECT TYPE STRING,
HELOC TYPE STRING,
NO_WARNINGS TYPE STRING,
LOAN_CAT TYPE STRING,
REF_PRODUCT TYPE STRING,
REF_PRODUCT_ATTR TYPE STRING,
REF_PROD_CONDITION TYPE STRING,
UPDATE_TOOL_USED TYPE STRING,
TRLE_DISTRIBUTOR_ACTIVE TYPE STRING,
ORG_VERIFY_STATUS TYPE STRING,
LOAN_DISBURSED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RLOCAC_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_RLOCAC_STEER_OL_STR-WORKID sy-vline 
WA_RLOCAC_STEER_OL_STR-GUID sy-vline 
WA_RLOCAC_STEER_OL_STR-ACTIVITY_ALLOWED sy-vline 
WA_RLOCAC_STEER_OL_STR-APPL_MODE sy-vline 
WA_RLOCAC_STEER_OL_STR-APPL_MODE_ENTRY sy-vline 
WA_RLOCAC_STEER_OL_STR-CALLING_COMP sy-vline 
WA_RLOCAC_STEER_OL_STR-CONF_OBJ sy-vline 
WA_RLOCAC_STEER_OL_STR-CONF_ACTIVE sy-vline 
WA_RLOCAC_STEER_OL_STR-NOTE_ASSIGNED sy-vline 
WA_RLOCAC_STEER_OL_STR-DATA_CHANGED sy-vline 
WA_RLOCAC_STEER_OL_STR-TESTRUN sy-vline 
WA_RLOCAC_STEER_OL_STR-RANL_AUTH sy-vline 
WA_RLOCAC_STEER_OL_STR-RANL_LOCK sy-vline 
WA_RLOCAC_STEER_OL_STR-NO_ENQUEUE sy-vline 
WA_RLOCAC_STEER_OL_STR-NO_CONFIRMATION sy-vline 
WA_RLOCAC_STEER_OL_STR-FLAG1 sy-vline 
WA_RLOCAC_STEER_OL_STR-INEG_RSALDO sy-vline 
WA_RLOCAC_STEER_OL_STR-MINCL sy-vline 
WA_RLOCAC_STEER_OL_STR-RANL sy-vline 
WA_RLOCAC_STEER_OL_STR-SOBJECT sy-vline 
WA_RLOCAC_STEER_OL_STR-HELOC sy-vline 
WA_RLOCAC_STEER_OL_STR-NO_WARNINGS sy-vline 
WA_RLOCAC_STEER_OL_STR-LOAN_CAT sy-vline 
WA_RLOCAC_STEER_OL_STR-REF_PRODUCT sy-vline 
WA_RLOCAC_STEER_OL_STR-REF_PRODUCT_ATTR sy-vline 
WA_RLOCAC_STEER_OL_STR-REF_PROD_CONDITION sy-vline 
WA_RLOCAC_STEER_OL_STR-UPDATE_TOOL_USED sy-vline 
WA_RLOCAC_STEER_OL_STR-TRLE_DISTRIBUTOR_ACTIVE sy-vline 
WA_RLOCAC_STEER_OL_STR-ORG_VERIFY_STATUS sy-vline 
WA_RLOCAC_STEER_OL_STR-LOAN_DISBURSED sy-vline      INTO ld_text SEPARATED BY SPACE.

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