ABAP Select data from SAP table RESC_DTAPE_OVERVIEW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RESC_DTAPE_OVERVIEW
*  INTO TABLE @DATA(IT_RESC_DTAPE_OVERVIEW2).
*--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_RESC_DTAPE_OVERVIEW INDEX 1 INTO DATA(WA_RESC_DTAPE_OVERVIEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RESC_DTAPE_OVERVIEW>-SCS_SU_GUID = 1.
<RESC_DTAPE_OVERVIEW>-INTRENO = 1.
<RESC_DTAPE_OVERVIEW>-PFROM = 1.
<RESC_DTAPE_OVERVIEW>-PTO = 1.
<RESC_DTAPE_OVERVIEW>-OBJNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RESC_DTAPE_OVERVIEW-OBJINFO, sy-vline,
  WA_RESC_DTAPE_OVERVIEW-XOBJTYPE, sy-vline,
  WA_RESC_DTAPE_OVERVIEW-XLOBJTYPE, sy-vline,
  WA_RESC_DTAPE_OVERVIEW-OBJID, sy-vline,
  WA_RESC_DTAPE_OVERVIEW-MANDT, sy-vline,
  WA_RESC_DTAPE_OVERVIEW-SKABRF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RESC_DTAPE_OVERVIEW 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_RESC_DTAPE_OVERVIEW 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_RESC_DTAPE_OVERVIEW INTO WA_RESC_DTAPE_OVERVIEW.


*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 PTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RESC_DTAPE_OVERVIEW-PTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESC_DTAPE_OVERVIEW-PTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field ASSIGNTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RESC_DTAPE_OVERVIEW-ASSIGNTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESC_DTAPE_OVERVIEW-ASSIGNTO.
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_RESC_DTAPE_OVERVIEW_STR, 
SCS_SU_GUID TYPE STRING,
INTRENO TYPE STRING,
PFROM TYPE STRING,
PTO TYPE STRING,
OBJNR TYPE STRING,
OBJINFO TYPE STRING,
XOBJTYPE TYPE STRING,
XLOBJTYPE TYPE STRING,
OBJID TYPE STRING,
MANDT TYPE STRING,
SKABRF TYPE STRING,
XMBEZ TYPE STRING,
XKBEZ TYPE STRING,
ABRKDNR TYPE STRING,
VERRKZ TYPE STRING,
ASSIGNTO TYPE STRING,
ASSIGNFROM TYPE STRING,
OBJTYPE TYPE STRING,
INTERNAL_OBJID TYPE STRING,
EXTERNAL_OBJID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RESC_DTAPE_OVERVIEW_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_RESC_DTAPE_OVERVIEW_STR-SCS_SU_GUID sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-INTRENO sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-PFROM sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-PTO sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-OBJNR sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-OBJINFO sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-XOBJTYPE sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-XLOBJTYPE sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-OBJID sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-MANDT sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-SKABRF sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-XMBEZ sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-XKBEZ sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-ABRKDNR sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-VERRKZ sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-ASSIGNTO sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-ASSIGNFROM sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-OBJTYPE sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-INTERNAL_OBJID sy-vline 
WA_RESC_DTAPE_OVERVIEW_STR-EXTERNAL_OBJID sy-vline      INTO ld_text SEPARATED BY SPACE.

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