ABAP Select data from SAP table RESC_DTAPE_DETAIL 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_DETAIL 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_DETAIL. 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_DETAIL 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_DETAIL TYPE STANDARD TABLE OF RESC_DTAPE_DETAIL,
      WA_RESC_DTAPE_DETAIL TYPE RESC_DTAPE_DETAIL,
      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_DETAIL> TYPE RESC_DTAPE_DETAIL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RESC_DTAPE_DETAIL
*  INTO TABLE @DATA(IT_RESC_DTAPE_DETAIL2).
*--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_DETAIL INDEX 1 INTO DATA(WA_RESC_DTAPE_DETAIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RESC_DTAPE_DETAIL>-SETTL_GUID = 1.
<RESC_DTAPE_DETAIL>-SCS_SU_GUID = 1.
<RESC_DTAPE_DETAIL>-SCS_RO_GUID = 1.
<RESC_DTAPE_DETAIL>-SCS_ROCN_GUID = 1.
<RESC_DTAPE_DETAIL>-RO_OBJNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RESC_DTAPE_DETAIL-RO_OBJINFO, sy-vline,
  WA_RESC_DTAPE_DETAIL-RO_OBJID, sy-vline,
  WA_RESC_DTAPE_DETAIL-CN_OBJNR, sy-vline,
  WA_RESC_DTAPE_DETAIL-CN_OBJINFO, sy-vline,
  WA_RESC_DTAPE_DETAIL-CN_OBJID, sy-vline,
  WA_RESC_DTAPE_DETAIL-SCS_PERIOD_GUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RESC_DTAPE_DETAIL 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_DETAIL 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_DETAIL INTO WA_RESC_DTAPE_DETAIL.


*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 ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RESC_DTAPE_DETAIL-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESC_DTAPE_DETAIL-PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field PTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RESC_DTAPE_DETAIL-PTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESC_DTAPE_DETAIL-PTO.
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_DETAIL_STR, 
SETTL_GUID TYPE STRING,
SCS_SU_GUID TYPE STRING,
SCS_RO_GUID TYPE STRING,
SCS_ROCN_GUID TYPE STRING,
RO_OBJNR TYPE STRING,
RO_OBJINFO TYPE STRING,
RO_OBJID TYPE STRING,
CN_OBJNR TYPE STRING,
CN_OBJINFO TYPE STRING,
CN_OBJID TYPE STRING,
SCS_PERIOD_GUID TYPE STRING,
PARTNER TYPE STRING,
PARTNEROBJNR TYPE STRING,
XNAME TYPE STRING,
XPARTNER TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
FULLNAME TYPE STRING,
ROLE TYPE STRING,
XROLE TYPE STRING,
PFROM TYPE STRING,
PTO TYPE STRING,
CURRENCY TYPE STRING,
NET_AMOUNT TYPE STRING,
TAX_AMOUNT TYPE STRING,
DEDUCT_TAX TYPE STRING,
NONDEDUCT_TAX TYPE STRING,
CHRGAMOUNT TYPE STRING,
NETAMOUNT TYPE STRING,
NONDEDTAXAMT TYPE STRING,
DEDTAXAMOUNT TYPE STRING,
NO_ENTRY TYPE STRING,
ASSIGNFROM TYPE STRING,
INTERNAL_OBJID TYPE STRING,
EXTERNAL_OBJID TYPE STRING,
GROSSAMOUNT_INFO TYPE STRING,
IS_TAX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RESC_DTAPE_DETAIL_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_DETAIL_STR-SETTL_GUID sy-vline 
WA_RESC_DTAPE_DETAIL_STR-SCS_SU_GUID sy-vline 
WA_RESC_DTAPE_DETAIL_STR-SCS_RO_GUID sy-vline 
WA_RESC_DTAPE_DETAIL_STR-SCS_ROCN_GUID sy-vline 
WA_RESC_DTAPE_DETAIL_STR-RO_OBJNR sy-vline 
WA_RESC_DTAPE_DETAIL_STR-RO_OBJINFO sy-vline 
WA_RESC_DTAPE_DETAIL_STR-RO_OBJID sy-vline 
WA_RESC_DTAPE_DETAIL_STR-CN_OBJNR sy-vline 
WA_RESC_DTAPE_DETAIL_STR-CN_OBJINFO sy-vline 
WA_RESC_DTAPE_DETAIL_STR-CN_OBJID sy-vline 
WA_RESC_DTAPE_DETAIL_STR-SCS_PERIOD_GUID sy-vline 
WA_RESC_DTAPE_DETAIL_STR-PARTNER sy-vline 
WA_RESC_DTAPE_DETAIL_STR-PARTNEROBJNR sy-vline 
WA_RESC_DTAPE_DETAIL_STR-XNAME sy-vline 
WA_RESC_DTAPE_DETAIL_STR-XPARTNER sy-vline 
WA_RESC_DTAPE_DETAIL_STR-FIRSTNAME sy-vline 
WA_RESC_DTAPE_DETAIL_STR-LASTNAME sy-vline 
WA_RESC_DTAPE_DETAIL_STR-FULLNAME sy-vline 
WA_RESC_DTAPE_DETAIL_STR-ROLE sy-vline 
WA_RESC_DTAPE_DETAIL_STR-XROLE sy-vline 
WA_RESC_DTAPE_DETAIL_STR-PFROM sy-vline 
WA_RESC_DTAPE_DETAIL_STR-PTO sy-vline 
WA_RESC_DTAPE_DETAIL_STR-CURRENCY sy-vline 
WA_RESC_DTAPE_DETAIL_STR-NET_AMOUNT sy-vline 
WA_RESC_DTAPE_DETAIL_STR-TAX_AMOUNT sy-vline 
WA_RESC_DTAPE_DETAIL_STR-DEDUCT_TAX sy-vline 
WA_RESC_DTAPE_DETAIL_STR-NONDEDUCT_TAX sy-vline 
WA_RESC_DTAPE_DETAIL_STR-CHRGAMOUNT sy-vline 
WA_RESC_DTAPE_DETAIL_STR-NETAMOUNT sy-vline 
WA_RESC_DTAPE_DETAIL_STR-NONDEDTAXAMT sy-vline 
WA_RESC_DTAPE_DETAIL_STR-DEDTAXAMOUNT sy-vline 
WA_RESC_DTAPE_DETAIL_STR-NO_ENTRY sy-vline 
WA_RESC_DTAPE_DETAIL_STR-ASSIGNFROM sy-vline 
WA_RESC_DTAPE_DETAIL_STR-INTERNAL_OBJID sy-vline 
WA_RESC_DTAPE_DETAIL_STR-EXTERNAL_OBJID sy-vline 
WA_RESC_DTAPE_DETAIL_STR-GROSSAMOUNT_INFO sy-vline 
WA_RESC_DTAPE_DETAIL_STR-IS_TAX sy-vline      INTO ld_text SEPARATED BY SPACE.

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