ABAP Select data from SAP table ROIUREP_GENERIC_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIUREP_GENERIC_HEADER
*  INTO TABLE @DATA(IT_ROIUREP_GENERIC_HEADER2).
*--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_ROIUREP_GENERIC_HEADER INDEX 1 INTO DATA(WA_ROIUREP_GENERIC_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIUREP_GENERIC_HEADER>-REG_NUMBER = 1.
<ROIUREP_GENERIC_HEADER>-HEAD_SEQNR = 1.
<ROIUREP_GENERIC_HEADER>-REC_TYPE = 1.
<ROIUREP_GENERIC_HEADER>-AMENDED = 1.
<ROIUREP_GENERIC_HEADER>-PRI_GEO_LOC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIUREP_GENERIC_HEADER-OR1_OR_LVL_1_NO, sy-vline,
  WA_ROIUREP_GENERIC_HEADER-OR2_OR_LVL_2_NO, sy-vline,
  WA_ROIUREP_GENERIC_HEADER-OR3_OR_LVL_3_NO, sy-vline,
  WA_ROIUREP_GENERIC_HEADER-OR4_OR_LVL_4_NO, sy-vline,
  WA_ROIUREP_GENERIC_HEADER-PRD_DT, sy-vline,
  WA_ROIUREP_GENERIC_HEADER-RPT_DT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIUREP_GENERIC_HEADER 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_ROIUREP_GENERIC_HEADER 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_ROIUREP_GENERIC_HEADER INTO WA_ROIUREP_GENERIC_HEADER.


*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 SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_ROIUREP_GENERIC_HEADER-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUREP_GENERIC_HEADER-EMAIL.
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_ROIUREP_GENERIC_HEADER_STR, 
REG_NUMBER TYPE STRING,
HEAD_SEQNR TYPE STRING,
REC_TYPE TYPE STRING,
AMENDED TYPE STRING,
PRI_GEO_LOC TYPE STRING,
OR1_OR_LVL_1_NO TYPE STRING,
OR2_OR_LVL_2_NO TYPE STRING,
OR3_OR_LVL_3_NO TYPE STRING,
OR4_OR_LVL_4_NO TYPE STRING,
PRD_DT TYPE STRING,
RPT_DT TYPE STRING,
OPERATOR_CODE TYPE STRING,
OPERATOR_NAME TYPE STRING,
CONTACT TYPE STRING,
PHONE TYPE STRING,
EXTN TYPE STRING,
STREET TYPE STRING,
CITY TYPE STRING,
STATE TYPE STRING,
ZIP TYPE STRING,
FAX TYPE STRING,
EMAIL TYPE STRING,
TITLE TYPE STRING,
PO_BOX TYPE STRING,
PO_BOX_CD TYPE STRING,
ADD_HDR1 TYPE STRING,
ADD_HDR2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIUREP_GENERIC_HEADER_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_ROIUREP_GENERIC_HEADER_STR-REG_NUMBER sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-HEAD_SEQNR sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-REC_TYPE sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-AMENDED sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-PRI_GEO_LOC sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-OR1_OR_LVL_1_NO sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-OR2_OR_LVL_2_NO sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-OR3_OR_LVL_3_NO sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-OR4_OR_LVL_4_NO sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-PRD_DT sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-RPT_DT sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-OPERATOR_CODE sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-OPERATOR_NAME sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-CONTACT sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-PHONE sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-EXTN sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-STREET sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-CITY sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-STATE sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-ZIP sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-FAX sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-EMAIL sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-TITLE sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-PO_BOX sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-PO_BOX_CD sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-ADD_HDR1 sy-vline 
WA_ROIUREP_GENERIC_HEADER_STR-ADD_HDR2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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