ABAP Select data from SAP table ROIRBPBLB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIRBPBLB
*  INTO TABLE @DATA(IT_ROIRBPBLB2).
*--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_ROIRBPBLB INDEX 1 INTO DATA(WA_ROIRBPBLB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIRBPBLB>-MANDT = 1.
<ROIRBPBLB>-PBLNR = 1.
<ROIRBPBLB>-RNBT = 1.
<ROIRBPBLB>-BRAND = 1.
<ROIRBPBLB>-LOCVALUE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIRBPBLB-LOCVDIFF, sy-vline,
  WA_ROIRBPBLB-STD_STYP, sy-vline,
  WA_ROIRBPBLB-LOCAA, sy-vline,
  WA_ROIRBPBLB-PR_AUTGR, sy-vline,
  WA_ROIRBPBLB-LPRCLU, sy-vline,
  WA_ROIRBPBLB-SFDIFFGR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIRBPBLB 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_ROIRBPBLB 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_ROIRBPBLB INTO WA_ROIRBPBLB.


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

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIRBPBLB-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIRBPBLB-LOGSYS.
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_ROIRBPBLB_STR, 
MANDT TYPE STRING,
PBLNR TYPE STRING,
RNBT TYPE STRING,
BRAND TYPE STRING,
LOCVALUE TYPE STRING,
LOCVDIFF TYPE STRING,
STD_STYP TYPE STRING,
LOCAA TYPE STRING,
PR_AUTGR TYPE STRING,
LPRCLU TYPE STRING,
SFDIFFGR TYPE STRING,
MDIFFGR TYPE STRING,
F_PR TYPE STRING,
INV_BLOCK TYPE STRING,
BL_DATE_FROM TYPE STRING,
BL_TIME_FROM TYPE STRING,
BL_DATE_TO TYPE STRING,
BL_TIME_TO TYPE STRING,
ACC_GROUP TYPE STRING,
MATHANDGRP TYPE STRING,
CONVGR TYPE STRING,
LOGSYS TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
AENAM TYPE STRING,
BLOIND TYPE STRING,
DELIND TYPE STRING,
UPD_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIRBPBLB_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_ROIRBPBLB_STR-MANDT sy-vline 
WA_ROIRBPBLB_STR-PBLNR sy-vline 
WA_ROIRBPBLB_STR-RNBT sy-vline 
WA_ROIRBPBLB_STR-BRAND sy-vline 
WA_ROIRBPBLB_STR-LOCVALUE sy-vline 
WA_ROIRBPBLB_STR-LOCVDIFF sy-vline 
WA_ROIRBPBLB_STR-STD_STYP sy-vline 
WA_ROIRBPBLB_STR-LOCAA sy-vline 
WA_ROIRBPBLB_STR-PR_AUTGR sy-vline 
WA_ROIRBPBLB_STR-LPRCLU sy-vline 
WA_ROIRBPBLB_STR-SFDIFFGR sy-vline 
WA_ROIRBPBLB_STR-MDIFFGR sy-vline 
WA_ROIRBPBLB_STR-F_PR sy-vline 
WA_ROIRBPBLB_STR-INV_BLOCK sy-vline 
WA_ROIRBPBLB_STR-BL_DATE_FROM sy-vline 
WA_ROIRBPBLB_STR-BL_TIME_FROM sy-vline 
WA_ROIRBPBLB_STR-BL_DATE_TO sy-vline 
WA_ROIRBPBLB_STR-BL_TIME_TO sy-vline 
WA_ROIRBPBLB_STR-ACC_GROUP sy-vline 
WA_ROIRBPBLB_STR-MATHANDGRP sy-vline 
WA_ROIRBPBLB_STR-CONVGR sy-vline 
WA_ROIRBPBLB_STR-LOGSYS sy-vline 
WA_ROIRBPBLB_STR-ERDAT sy-vline 
WA_ROIRBPBLB_STR-ERZEIT sy-vline 
WA_ROIRBPBLB_STR-ERNAM sy-vline 
WA_ROIRBPBLB_STR-AEDAT sy-vline 
WA_ROIRBPBLB_STR-AEZEIT sy-vline 
WA_ROIRBPBLB_STR-AENAM sy-vline 
WA_ROIRBPBLB_STR-BLOIND sy-vline 
WA_ROIRBPBLB_STR-DELIND sy-vline 
WA_ROIRBPBLB_STR-UPD_FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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