ABAP Select data from SAP table ROIUGR_RPDT_ALV_0100 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ROIUGR_RPDT_ALV_0100 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 ROIUGR_RPDT_ALV_0100. 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 ROIUGR_RPDT_ALV_0100 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_ROIUGR_RPDT_ALV_0100 TYPE STANDARD TABLE OF ROIUGR_RPDT_ALV_0100,
      WA_ROIUGR_RPDT_ALV_0100 TYPE ROIUGR_RPDT_ALV_0100,
      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: <ROIUGR_RPDT_ALV_0100> TYPE ROIUGR_RPDT_ALV_0100.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ROIUGR_RPDT_ALV_0100.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ROIUGR_RPDT_ALV_0100
  INTO TABLE IT_ROIUGR_RPDT_ALV_0100.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIUGR_RPDT_ALV_0100
*  INTO TABLE @DATA(IT_ROIUGR_RPDT_ALV_01002).
*--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_ROIUGR_RPDT_ALV_0100 INDEX 1 INTO DATA(WA_ROIUGR_RPDT_ALV_01002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ROIUGR_RPDT_ALV_0100 ASSIGNING <ROIUGR_RPDT_ALV_0100>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIUGR_RPDT_ALV_0100>-MANDT = 1.
<ROIUGR_RPDT_ALV_0100>-RUN_ID = 1.
<ROIUGR_RPDT_ALV_0100>-RPDT_GUID = 1.
<ROIUGR_RPDT_ALV_0100>-SALES_DT = 1.
<ROIUGR_RPDT_ALV_0100>-ENTITY_ID = 1.

ENDLOOP.

LOOP AT IT_ROIUGR_RPDT_ALV_0100 INTO WA_ROIUGR_RPDT_ALV_0100.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIUGR_RPDT_ALV_0100-PRODUCT_CODE, sy-vline,
  WA_ROIUGR_RPDT_ALV_0100-REV_BOOK_ADJ_IND, sy-vline,
  WA_ROIUGR_RPDT_ALV_0100-ENTITY_LINK_GUID, sy-vline,
  WA_ROIUGR_RPDT_ALV_0100-WAERS, sy-vline,
  WA_ROIUGR_RPDT_ALV_0100-VOL_UOM, sy-vline,
  WA_ROIUGR_RPDT_ALV_0100-ENERGY_UOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIUGR_RPDT_ALV_0100 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_ROIUGR_RPDT_ALV_0100 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_ROIUGR_RPDT_ALV_0100 INTO WA_ROIUGR_RPDT_ALV_0100.


*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 CUNIT, internal->external for field VOL_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIUGR_RPDT_ALV_0100-VOL_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUGR_RPDT_ALV_0100-VOL_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ENERGY_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIUGR_RPDT_ALV_0100-ENERGY_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUGR_RPDT_ALV_0100-ENERGY_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field HEAT_VAL_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIUGR_RPDT_ALV_0100-HEAT_VAL_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUGR_RPDT_ALV_0100-HEAT_VAL_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PRES_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIUGR_RPDT_ALV_0100-PRES_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUGR_RPDT_ALV_0100-PRES_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CHANGE_TIMESTAMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_ROIUGR_RPDT_ALV_0100-CHANGE_TIMESTAMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUGR_RPDT_ALV_0100-CHANGE_TIMESTAMP.
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_ROIUGR_RPDT_ALV_0100_STR, 
MANDT TYPE STRING,
RUN_ID TYPE STRING,
RPDT_GUID TYPE STRING,
SALES_DT TYPE STRING,
ENTITY_ID TYPE STRING,
PRODUCT_CODE TYPE STRING,
REV_BOOK_ADJ_IND TYPE STRING,
ENTITY_LINK_GUID TYPE STRING,
WAERS TYPE STRING,
VOL_UOM TYPE STRING,
ENERGY_UOM TYPE STRING,
HEAT_VAL_UOM TYPE STRING,
PRES_UOM TYPE STRING,
HEAT_VAL TYPE STRING,
PS_BASE_QY TYPE STRING,
GRAVITY TYPE STRING,
GROSS_VOL TYPE STRING,
GROSS_ENERGY TYPE STRING,
GROSS_PVR TYPE STRING,
GROSS_PTR TYPE STRING,
NET_VOL TYPE STRING,
OWNER_ENERGY TYPE STRING,
OWN_PVR TYPE STRING,
OWN_PTR TYPE STRING,
GROSS_VAL TYPE STRING,
NET_VAL TYPE STRING,
OWNER_GROSS_VAL TYPE STRING,
TOT_GROSS_MKT_AM TYPE STRING,
TOT_GROSS_RMB_AM TYPE STRING,
TOT_GROSS_TAX_AM TYPE STRING,
TOT_GROSS_TX_RMB TYPE STRING,
TOT_OWNER_MKT_AM TYPE STRING,
TOT_OWNER_RMB_AM TYPE STRING,
TOT_OWNER_TAX_AM TYPE STRING,
TOT_OWNER_TX_RMB TYPE STRING,
TOT_OTHER_DED_AM TYPE STRING,
CHANGE_USER TYPE STRING,
CHANGE_TIMESTAMP TYPE STRING,
LINE_COLOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIUGR_RPDT_ALV_0100_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_ROIUGR_RPDT_ALV_0100_STR-MANDT sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-RUN_ID sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-RPDT_GUID sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-SALES_DT sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-ENTITY_ID sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-PRODUCT_CODE sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-REV_BOOK_ADJ_IND sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-ENTITY_LINK_GUID sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-WAERS sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-VOL_UOM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-ENERGY_UOM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-HEAT_VAL_UOM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-PRES_UOM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-HEAT_VAL sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-PS_BASE_QY sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-GRAVITY sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-GROSS_VOL sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-GROSS_ENERGY sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-GROSS_PVR sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-GROSS_PTR sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-NET_VOL sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-OWNER_ENERGY sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-OWN_PVR sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-OWN_PTR sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-GROSS_VAL sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-NET_VAL sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-OWNER_GROSS_VAL sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-TOT_GROSS_MKT_AM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-TOT_GROSS_RMB_AM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-TOT_GROSS_TAX_AM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-TOT_GROSS_TX_RMB sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-TOT_OWNER_MKT_AM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-TOT_OWNER_RMB_AM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-TOT_OWNER_TAX_AM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-TOT_OWNER_TX_RMB sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-TOT_OTHER_DED_AM sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-CHANGE_USER sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-CHANGE_TIMESTAMP sy-vline 
WA_ROIUGR_RPDT_ALV_0100_STR-LINE_COLOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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