ABAP Select data from SAP table ROS_CUF_REQ_FIELDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROS_CUF_REQ_FIELDS
*  INTO TABLE @DATA(IT_ROS_CUF_REQ_FIELDS2).
*--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_ROS_CUF_REQ_FIELDS INDEX 1 INTO DATA(WA_ROS_CUF_REQ_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROS_CUF_REQ_FIELDS>-XNAME1 = 1.
<ROS_CUF_REQ_FIELDS>-XNAME2 = 1.
<ROS_CUF_REQ_FIELDS>-XLANGUAGE = 1.
<ROS_CUF_REQ_FIELDS>-XSTD_COMM_TYPE = 1.
<ROS_CUF_REQ_FIELDS>-XCO_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROS_CUF_REQ_FIELDS-XCITY, sy-vline,
  WA_ROS_CUF_REQ_FIELDS-XDISTRICT, sy-vline,
  WA_ROS_CUF_REQ_FIELDS-XPOSTAL_CODE, sy-vline,
  WA_ROS_CUF_REQ_FIELDS-XPOSTL_COD_PO_BOX, sy-vline,
  WA_ROS_CUF_REQ_FIELDS-XPOSTL_COD_COMP, sy-vline,
  WA_ROS_CUF_REQ_FIELDS-XPO_BOX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROS_CUF_REQ_FIELDS 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_ROS_CUF_REQ_FIELDS 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_ROS_CUF_REQ_FIELDS INTO WA_ROS_CUF_REQ_FIELDS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ROS_CUF_REQ_FIELDS_STR, 
XNAME1 TYPE STRING,
XNAME2 TYPE STRING,
XLANGUAGE TYPE STRING,
XSTD_COMM_TYPE TYPE STRING,
XCO_NAME TYPE STRING,
XCITY TYPE STRING,
XDISTRICT TYPE STRING,
XPOSTAL_CODE TYPE STRING,
XPOSTL_COD_PO_BOX TYPE STRING,
XPOSTL_COD_COMP TYPE STRING,
XPO_BOX TYPE STRING,
XPO_BOX_CITY TYPE STRING,
XPO_BOX_COUNTRY TYPE STRING,
XSTREET_PREFIX TYPE STRING,
XSTREET TYPE STRING,
XSTREET_SUFFIX TYPE STRING,
XHOUSE_NUMBER TYPE STRING,
XBUILDING TYPE STRING,
XFLOOR TYPE STRING,
XROOM_NUMBER TYPE STRING,
XCOUNTRY TYPE STRING,
XTAX_JUR_CODE TYPE STRING,
XPHONE_NUMBER TYPE STRING,
XPHONE_EXTENS TYPE STRING,
XFAX_NUMBER TYPE STRING,
XFAX_EXTENSION TYPE STRING,
XEMAIL_ADDRESS TYPE STRING,
XDUNS_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROS_CUF_REQ_FIELDS_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_ROS_CUF_REQ_FIELDS_STR-XNAME1 sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XNAME2 sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XLANGUAGE sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XSTD_COMM_TYPE sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XCO_NAME sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XCITY sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XDISTRICT sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XPOSTAL_CODE sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XPOSTL_COD_PO_BOX sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XPOSTL_COD_COMP sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XPO_BOX sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XPO_BOX_CITY sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XPO_BOX_COUNTRY sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XSTREET_PREFIX sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XSTREET sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XSTREET_SUFFIX sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XHOUSE_NUMBER sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XBUILDING sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XFLOOR sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XROOM_NUMBER sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XCOUNTRY sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XTAX_JUR_CODE sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XPHONE_NUMBER sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XPHONE_EXTENS sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XFAX_NUMBER sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XFAX_EXTENSION sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XEMAIL_ADDRESS sy-vline 
WA_ROS_CUF_REQ_FIELDS_STR-XDUNS_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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