ABAP Select data from SAP table REIS_BP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REIS_BP
*  INTO TABLE @DATA(IT_REIS_BP2).
*--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_REIS_BP INDEX 1 INTO DATA(WA_REIS_BP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REIS_BP>-PARTNER01 = 1.
<REIS_BP>-BPROLE01 = 1.
<REIS_BP>-BPNAME01 = 1.
<REIS_BP>-PARTNER02 = 1.
<REIS_BP>-BPROLE02 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REIS_BP-BPNAME02, sy-vline,
  WA_REIS_BP-PARTNER03, sy-vline,
  WA_REIS_BP-BPROLE03, sy-vline,
  WA_REIS_BP-BPNAME03, sy-vline,
  WA_REIS_BP-PARTNER04, sy-vline,
  WA_REIS_BP-BPROLE04, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REIS_BP 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_REIS_BP 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_REIS_BP INTO WA_REIS_BP.


*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 PARTNER01
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_BP-PARTNER01
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_BP-PARTNER01.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER02
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_BP-PARTNER02
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_BP-PARTNER02.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER03
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_BP-PARTNER03
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_BP-PARTNER03.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER04
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_BP-PARTNER04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_BP-PARTNER04.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER05
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_BP-PARTNER05
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_BP-PARTNER05.
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_REIS_BP_STR, 
PARTNER01 TYPE STRING,
BPROLE01 TYPE STRING,
BPNAME01 TYPE STRING,
PARTNER02 TYPE STRING,
BPROLE02 TYPE STRING,
BPNAME02 TYPE STRING,
PARTNER03 TYPE STRING,
BPROLE03 TYPE STRING,
BPNAME03 TYPE STRING,
PARTNER04 TYPE STRING,
BPROLE04 TYPE STRING,
BPNAME04 TYPE STRING,
PARTNER05 TYPE STRING,
BPROLE05 TYPE STRING,
BPNAME05 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REIS_BP_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_REIS_BP_STR-PARTNER01 sy-vline 
WA_REIS_BP_STR-BPROLE01 sy-vline 
WA_REIS_BP_STR-BPNAME01 sy-vline 
WA_REIS_BP_STR-PARTNER02 sy-vline 
WA_REIS_BP_STR-BPROLE02 sy-vline 
WA_REIS_BP_STR-BPNAME02 sy-vline 
WA_REIS_BP_STR-PARTNER03 sy-vline 
WA_REIS_BP_STR-BPROLE03 sy-vline 
WA_REIS_BP_STR-BPNAME03 sy-vline 
WA_REIS_BP_STR-PARTNER04 sy-vline 
WA_REIS_BP_STR-BPROLE04 sy-vline 
WA_REIS_BP_STR-BPNAME04 sy-vline 
WA_REIS_BP_STR-PARTNER05 sy-vline 
WA_REIS_BP_STR-BPROLE05 sy-vline 
WA_REIS_BP_STR-BPNAME05 sy-vline      INTO ld_text SEPARATED BY SPACE.

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