ABAP Select data from SAP table RLOAM_FLOW_DELTA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RLOAM_FLOW_DELTA
*  INTO TABLE @DATA(IT_RLOAM_FLOW_DELTA2).
*--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_RLOAM_FLOW_DELTA INDEX 1 INTO DATA(WA_RLOAM_FLOW_DELTA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RLOAM_FLOW_DELTA>-SBWHR = 1.
<RLOAM_FLOW_DELTA>-SHWHR = 1.
<RLOAM_FLOW_DELTA>-D_BZKWR = 1.
<RLOAM_FLOW_DELTA>-D_BAVWR = 1.
<RLOAM_FLOW_DELTA>-D_BEUAVWR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RLOAM_FLOW_DELTA-D_BVAWR, sy-vline,
  WA_RLOAM_FLOW_DELTA-D_BVAHW, sy-vline,
  WA_RLOAM_FLOW_DELTA-D_BRPWR, sy-vline,
  WA_RLOAM_FLOW_DELTA-D_BRPHW, sy-vline,
  WA_RLOAM_FLOW_DELTA-D_BEURPWR, sy-vline,
  WA_RLOAM_FLOW_DELTA-D_BRPNWR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RLOAM_FLOW_DELTA 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_RLOAM_FLOW_DELTA 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_RLOAM_FLOW_DELTA INTO WA_RLOAM_FLOW_DELTA.


*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_RLOAM_FLOW_DELTA_STR, 
SBWHR TYPE STRING,
SHWHR TYPE STRING,
D_BZKWR TYPE STRING,
D_BAVWR TYPE STRING,
D_BEUAVWR TYPE STRING,
D_BVAWR TYPE STRING,
D_BVAHW TYPE STRING,
D_BRPWR TYPE STRING,
D_BRPHW TYPE STRING,
D_BEURPWR TYPE STRING,
D_BRPNWR TYPE STRING,
D_BRINWR TYPE STRING,
D_BRIWR TYPE STRING,
D_BRIHW TYPE STRING,
D_BATWR TYPE STRING,
D_BATHW TYPE STRING,
D_BATNWR TYPE STRING,
D_BATZWR TYPE STRING,
D_BATZHW TYPE STRING,
D_BPTWR TYPE STRING,
D_BPTHW TYPE STRING,
D_BPTZWR TYPE STRING,
D_BPTZHW TYPE STRING,
D_BKGVHW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RLOAM_FLOW_DELTA_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_RLOAM_FLOW_DELTA_STR-SBWHR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-SHWHR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BZKWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BAVWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BEUAVWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BVAWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BVAHW sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BRPWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BRPHW sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BEURPWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BRPNWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BRINWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BRIWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BRIHW sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BATWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BATHW sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BATNWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BATZWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BATZHW sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BPTWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BPTHW sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BPTZWR sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BPTZHW sy-vline 
WA_RLOAM_FLOW_DELTA_STR-D_BKGVHW sy-vline      INTO ld_text SEPARATED BY SPACE.

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