ABAP Select data from SAP table RESCPGASSIGNRO_X into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RESCPGASSIGNRO_X
*  INTO TABLE @DATA(IT_RESCPGASSIGNRO_X2).
*--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_RESCPGASSIGNRO_X INDEX 1 INTO DATA(WA_RESCPGASSIGNRO_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RESCPGASSIGNRO_X>-INTRENO = 1.
<RESCPGASSIGNRO_X>-OBJNR = 1.
<RESCPGASSIGNRO_X>-OBJINFO = 1.
<RESCPGASSIGNRO_X>-OBJTYPE = 1.
<RESCPGASSIGNRO_X>-XOBJTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RESCPGASSIGNRO_X-XLOBJTYPE, sy-vline,
  WA_RESCPGASSIGNRO_X-OBJID, sy-vline,
  WA_RESCPGASSIGNRO_X-VALIDTO, sy-vline,
  WA_RESCPGASSIGNRO_X-VALIDFROM, sy-vline,
  WA_RESCPGASSIGNRO_X-NODISSOLVE, sy-vline,
  WA_RESCPGASSIGNRO_X-EXCLUDE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RESCPGASSIGNRO_X 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_RESCPGASSIGNRO_X 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_RESCPGASSIGNRO_X INTO WA_RESCPGASSIGNRO_X.


*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 REDAT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RESCPGASSIGNRO_X-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCPGASSIGNRO_X-VALIDTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field BDVALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RESCPGASSIGNRO_X-BDVALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCPGASSIGNRO_X-BDVALIDTO.
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_RESCPGASSIGNRO_X_STR, 
INTRENO TYPE STRING,
OBJNR TYPE STRING,
OBJINFO TYPE STRING,
OBJTYPE TYPE STRING,
XOBJTYPE TYPE STRING,
XLOBJTYPE TYPE STRING,
OBJID TYPE STRING,
VALIDTO TYPE STRING,
VALIDFROM TYPE STRING,
NODISSOLVE TYPE STRING,
EXCLUDE TYPE STRING,
ACTIVITYICON TYPE STRING,
BDVALIDFROM TYPE STRING,
BDVALIDTO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RESCPGASSIGNRO_X_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_RESCPGASSIGNRO_X_STR-INTRENO sy-vline 
WA_RESCPGASSIGNRO_X_STR-OBJNR sy-vline 
WA_RESCPGASSIGNRO_X_STR-OBJINFO sy-vline 
WA_RESCPGASSIGNRO_X_STR-OBJTYPE sy-vline 
WA_RESCPGASSIGNRO_X_STR-XOBJTYPE sy-vline 
WA_RESCPGASSIGNRO_X_STR-XLOBJTYPE sy-vline 
WA_RESCPGASSIGNRO_X_STR-OBJID sy-vline 
WA_RESCPGASSIGNRO_X_STR-VALIDTO sy-vline 
WA_RESCPGASSIGNRO_X_STR-VALIDFROM sy-vline 
WA_RESCPGASSIGNRO_X_STR-NODISSOLVE sy-vline 
WA_RESCPGASSIGNRO_X_STR-EXCLUDE sy-vline 
WA_RESCPGASSIGNRO_X_STR-ACTIVITYICON sy-vline 
WA_RESCPGASSIGNRO_X_STR-BDVALIDFROM sy-vline 
WA_RESCPGASSIGNRO_X_STR-BDVALIDTO sy-vline      INTO ld_text SEPARATED BY SPACE.

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