ABAP Select data from SAP table ROIU_REP_PARAMETER into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIU_REP_PARAMETER
*  INTO TABLE @DATA(IT_ROIU_REP_PARAMETER2).
*--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_ROIU_REP_PARAMETER INDEX 1 INTO DATA(WA_ROIU_REP_PARAMETER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIU_REP_PARAMETER>-REP_YEAR = 1.
<ROIU_REP_PARAMETER>-REP_MONTH = 1.
<ROIU_REP_PARAMETER>-OR1_OR_LVL_1_NO = 1.
<ROIU_REP_PARAMETER>-AC_INDICATOR = 1.
<ROIU_REP_PARAMETER>-STATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIU_REP_PARAMETER-OR2_OR_LVL_2_NO, sy-vline,
  WA_ROIU_REP_PARAMETER-OR3_OR_LVL_3_NO, sy-vline,
  WA_ROIU_REP_PARAMETER-OR4_OR_LVL_4_NO, sy-vline,
  WA_ROIU_REP_PARAMETER-TF_INDICATOR, sy-vline,
  WA_ROIU_REP_PARAMETER-TF_INDICATOR_YN, sy-vline,
  WA_ROIU_REP_PARAMETER-PRODUCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIU_REP_PARAMETER 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_ROIU_REP_PARAMETER 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_ROIU_REP_PARAMETER INTO WA_ROIU_REP_PARAMETER.


*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 GJAHR, internal->external for field REP_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ROIU_REP_PARAMETER-REP_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIU_REP_PARAMETER-REP_YEAR.
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_ROIU_REP_PARAMETER_STR, 
REP_YEAR TYPE STRING,
REP_MONTH TYPE STRING,
OR1_OR_LVL_1_NO TYPE STRING,
AC_INDICATOR TYPE STRING,
STATE TYPE STRING,
OR2_OR_LVL_2_NO TYPE STRING,
OR3_OR_LVL_3_NO TYPE STRING,
OR4_OR_LVL_4_NO TYPE STRING,
TF_INDICATOR TYPE STRING,
TF_INDICATOR_YN TYPE STRING,
PRODUCT TYPE STRING,
SUBLEDGER_TYPE TYPE STRING,
INTERCOMPANY_FL TYPE STRING,
TAXTYPE TYPE STRING,
REP_TYPE TYPE STRING,
REP_ID TYPE STRING,
HYEAR TYPE STRING,
OMR_INDICATOR TYPE STRING,
OGOR_A TYPE STRING,
OGOR_B TYPE STRING,
OGOR_C TYPE STRING,
DASH TYPE STRING,
T_TYPE TYPE STRING,
LAND1 TYPE STRING,
ADJUSTMENTS TYPE STRING,
REP_PRD TYPE STRING,
SPLIT_JE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIU_REP_PARAMETER_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_ROIU_REP_PARAMETER_STR-REP_YEAR sy-vline 
WA_ROIU_REP_PARAMETER_STR-REP_MONTH sy-vline 
WA_ROIU_REP_PARAMETER_STR-OR1_OR_LVL_1_NO sy-vline 
WA_ROIU_REP_PARAMETER_STR-AC_INDICATOR sy-vline 
WA_ROIU_REP_PARAMETER_STR-STATE sy-vline 
WA_ROIU_REP_PARAMETER_STR-OR2_OR_LVL_2_NO sy-vline 
WA_ROIU_REP_PARAMETER_STR-OR3_OR_LVL_3_NO sy-vline 
WA_ROIU_REP_PARAMETER_STR-OR4_OR_LVL_4_NO sy-vline 
WA_ROIU_REP_PARAMETER_STR-TF_INDICATOR sy-vline 
WA_ROIU_REP_PARAMETER_STR-TF_INDICATOR_YN sy-vline 
WA_ROIU_REP_PARAMETER_STR-PRODUCT sy-vline 
WA_ROIU_REP_PARAMETER_STR-SUBLEDGER_TYPE sy-vline 
WA_ROIU_REP_PARAMETER_STR-INTERCOMPANY_FL sy-vline 
WA_ROIU_REP_PARAMETER_STR-TAXTYPE sy-vline 
WA_ROIU_REP_PARAMETER_STR-REP_TYPE sy-vline 
WA_ROIU_REP_PARAMETER_STR-REP_ID sy-vline 
WA_ROIU_REP_PARAMETER_STR-HYEAR sy-vline 
WA_ROIU_REP_PARAMETER_STR-OMR_INDICATOR sy-vline 
WA_ROIU_REP_PARAMETER_STR-OGOR_A sy-vline 
WA_ROIU_REP_PARAMETER_STR-OGOR_B sy-vline 
WA_ROIU_REP_PARAMETER_STR-OGOR_C sy-vline 
WA_ROIU_REP_PARAMETER_STR-DASH sy-vline 
WA_ROIU_REP_PARAMETER_STR-T_TYPE sy-vline 
WA_ROIU_REP_PARAMETER_STR-LAND1 sy-vline 
WA_ROIU_REP_PARAMETER_STR-ADJUSTMENTS sy-vline 
WA_ROIU_REP_PARAMETER_STR-REP_PRD sy-vline 
WA_ROIU_REP_PARAMETER_STR-SPLIT_JE sy-vline      INTO ld_text SEPARATED BY SPACE.

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