ABAP Select data from SAP table ROIIGPBL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIIGPBL
*  INTO TABLE @DATA(IT_ROIIGPBL2).
*--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_ROIIGPBL INDEX 1 INTO DATA(WA_ROIIGPBL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIIGPBL>-MANDT = 1.
<ROIIGPBL>-PBLNR = 1.
<ROIIGPBL>-RNBT = 1.
<ROIIGPBL>-SEQNR = 1.
<ROIIGPBL>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIIGPBL-SERVTYP, sy-vline,
  WA_ROIIGPBL-EQUNR, sy-vline,
  WA_ROIIGPBL-D_VALID_TO, sy-vline,
  WA_ROIIGPBL-T_VALID_TO, sy-vline,
  WA_ROIIGPBL-D_VALID_FROM, sy-vline,
  WA_ROIIGPBL-T_VALID_FROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIIGPBL 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_ROIIGPBL 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_ROIIGPBL INTO WA_ROIIGPBL.


*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_ROIIGPBL-PBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIIGPBL-PBLNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ROIIGPBL-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIIGPBL-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field VOLUN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIIGPBL-VOLUN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIIGPBL-VOLUN.
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_ROIIGPBL_STR, 
MANDT TYPE STRING,
PBLNR TYPE STRING,
RNBT TYPE STRING,
SEQNR TYPE STRING,
MATNR TYPE STRING,
SERVTYP TYPE STRING,
EQUNR TYPE STRING,
D_VALID_TO TYPE STRING,
T_VALID_TO TYPE STRING,
D_VALID_FROM TYPE STRING,
T_VALID_FROM TYPE STRING,
MT_IND TYPE STRING,
GMMNR TYPE STRING,
STCOUN TYPE STRING,
QMET_IND TYPE STRING,
MATSWITCH TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
AENAM TYPE STRING,
VOLUN TYPE STRING,
GMMTYP TYPE STRING,
UPD_FLAG TYPE STRING,
METER_IND TYPE STRING,
ACCTYPE TYPE STRING,
KEYTYPE TYPE STRING,
DATE_IND TYPE STRING,
RNBT_DESC TYPE STRING,
DESCR TYPE STRING,
CITY1 TYPE STRING,
POST_CODE1 TYPE STRING,
NAME1 TYPE STRING,
PBLTYP TYPE STRING,
MATHANDGRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIIGPBL_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_ROIIGPBL_STR-MANDT sy-vline 
WA_ROIIGPBL_STR-PBLNR sy-vline 
WA_ROIIGPBL_STR-RNBT sy-vline 
WA_ROIIGPBL_STR-SEQNR sy-vline 
WA_ROIIGPBL_STR-MATNR sy-vline 
WA_ROIIGPBL_STR-SERVTYP sy-vline 
WA_ROIIGPBL_STR-EQUNR sy-vline 
WA_ROIIGPBL_STR-D_VALID_TO sy-vline 
WA_ROIIGPBL_STR-T_VALID_TO sy-vline 
WA_ROIIGPBL_STR-D_VALID_FROM sy-vline 
WA_ROIIGPBL_STR-T_VALID_FROM sy-vline 
WA_ROIIGPBL_STR-MT_IND sy-vline 
WA_ROIIGPBL_STR-GMMNR sy-vline 
WA_ROIIGPBL_STR-STCOUN sy-vline 
WA_ROIIGPBL_STR-QMET_IND sy-vline 
WA_ROIIGPBL_STR-MATSWITCH sy-vline 
WA_ROIIGPBL_STR-ERDAT sy-vline 
WA_ROIIGPBL_STR-ERTIM sy-vline 
WA_ROIIGPBL_STR-ERNAM sy-vline 
WA_ROIIGPBL_STR-AEDAT sy-vline 
WA_ROIIGPBL_STR-AETIM sy-vline 
WA_ROIIGPBL_STR-AENAM sy-vline 
WA_ROIIGPBL_STR-VOLUN sy-vline 
WA_ROIIGPBL_STR-GMMTYP sy-vline 
WA_ROIIGPBL_STR-UPD_FLAG sy-vline 
WA_ROIIGPBL_STR-METER_IND sy-vline 
WA_ROIIGPBL_STR-ACCTYPE sy-vline 
WA_ROIIGPBL_STR-KEYTYPE sy-vline 
WA_ROIIGPBL_STR-DATE_IND sy-vline 
WA_ROIIGPBL_STR-RNBT_DESC sy-vline 
WA_ROIIGPBL_STR-DESCR sy-vline 
WA_ROIIGPBL_STR-CITY1 sy-vline 
WA_ROIIGPBL_STR-POST_CODE1 sy-vline 
WA_ROIIGPBL_STR-NAME1 sy-vline 
WA_ROIIGPBL_STR-PBLTYP sy-vline 
WA_ROIIGPBL_STR-MATHANDGRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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