ABAP Select data from SAP table RBCT_DATA_RLOAM_FLOW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RBCT_DATA_RLOAM_FLOW
*  INTO TABLE @DATA(IT_RBCT_DATA_RLOAM_FLOW2).
*--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_RBCT_DATA_RLOAM_FLOW INDEX 1 INTO DATA(WA_RBCT_DATA_RLOAM_FLOW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RBCT_DATA_RLOAM_FLOW>-BZKWR = 1.
<RBCT_DATA_RLOAM_FLOW>-BAVWR = 1.
<RBCT_DATA_RLOAM_FLOW>-BVAWR = 1.
<RBCT_DATA_RLOAM_FLOW>-BVAHW = 1.
<RBCT_DATA_RLOAM_FLOW>-BRPWR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RBCT_DATA_RLOAM_FLOW-BRPHW, sy-vline,
  WA_RBCT_DATA_RLOAM_FLOW-BRPNWR, sy-vline,
  WA_RBCT_DATA_RLOAM_FLOW-BRINWR, sy-vline,
  WA_RBCT_DATA_RLOAM_FLOW-BRIWR, sy-vline,
  WA_RBCT_DATA_RLOAM_FLOW-BRIHW, sy-vline,
  WA_RBCT_DATA_RLOAM_FLOW-BATWR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RBCT_DATA_RLOAM_FLOW 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_RBCT_DATA_RLOAM_FLOW 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_RBCT_DATA_RLOAM_FLOW INTO WA_RBCT_DATA_RLOAM_FLOW.


*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_RBCT_DATA_RLOAM_FLOW_STR, 
BZKWR TYPE STRING,
BAVWR TYPE STRING,
BVAWR TYPE STRING,
BVAHW TYPE STRING,
BRPWR TYPE STRING,
BRPHW TYPE STRING,
BRPNWR TYPE STRING,
BRINWR TYPE STRING,
BRIWR TYPE STRING,
BRIHW TYPE STRING,
BATWR TYPE STRING,
BATHW TYPE STRING,
BATNWR TYPE STRING,
BATZWR TYPE STRING,
BATZHW TYPE STRING,
BPTWR TYPE STRING,
BPTHW TYPE STRING,
BPTZWR TYPE STRING,
BPTZHW TYPE STRING,
BKGVHW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RBCT_DATA_RLOAM_FLOW_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_RBCT_DATA_RLOAM_FLOW_STR-BZKWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BAVWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BVAWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BVAHW sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BRPWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BRPHW sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BRPNWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BRINWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BRIWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BRIHW sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BATWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BATHW sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BATNWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BATZWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BATZHW sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BPTWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BPTHW sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BPTZWR sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BPTZHW sy-vline 
WA_RBCT_DATA_RLOAM_FLOW_STR-BKGVHW sy-vline      INTO ld_text SEPARATED BY SPACE.

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