ABAP Select data from SAP table RESCSSU2CN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RESCSSU2CN 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 RESCSSU2CN. 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 RESCSSU2CN 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_RESCSSU2CN TYPE STANDARD TABLE OF RESCSSU2CN,
      WA_RESCSSU2CN TYPE RESCSSU2CN,
      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: <RESCSSU2CN> TYPE RESCSSU2CN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RESCSSU2CN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RESCSSU2CN
  INTO TABLE IT_RESCSSU2CN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RESCSSU2CN
*  INTO TABLE @DATA(IT_RESCSSU2CN2).
*--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_RESCSSU2CN INDEX 1 INTO DATA(WA_RESCSSU2CN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RESCSSU2CN ASSIGNING <RESCSSU2CN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RESCSSU2CN>-SCS_SU_GUID = 1.
<RESCSSU2CN>-MANDT = 1.
<RESCSSU2CN>-SCS_ROCN_GUID = 1.
<RESCSSU2CN>-RO_OBJNR = 1.
<RESCSSU2CN>-RO_OBJINFO = 1.

ENDLOOP.

LOOP AT IT_RESCSSU2CN INTO WA_RESCSSU2CN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RESCSSU2CN-RO_OBJID, sy-vline,
  WA_RESCSSU2CN-CN_OBJNR, sy-vline,
  WA_RESCSSU2CN-CN_OBJINFO, sy-vline,
  WA_RESCSSU2CN-CN_OBJID, sy-vline,
  WA_RESCSSU2CN-PFROM, sy-vline,
  WA_RESCSSU2CN-PTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RESCSSU2CN 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_RESCSSU2CN 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_RESCSSU2CN INTO WA_RESCSSU2CN.


*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_RESCSSU2CN-PTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCSSU2CN-PTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MEAS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RESCSSU2CN-MEAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCSSU2CN-MEAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONDTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RESCSSU2CN-CONDTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCSSU2CN-CONDTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RESCSSU2CN-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCSSU2CN-PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FIXFITCHARACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RESCSSU2CN-FIXFITCHARACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCSSU2CN-FIXFITCHARACT.
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_RESCSSU2CN_STR, 
SCS_SU_GUID TYPE STRING,
MANDT 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,
PFROM TYPE STRING,
PTO TYPE STRING,
PLENGTH TYPE STRING,
PROCESSID TYPE STRING,
PURPOSE TYPE STRING,
MEAS TYPE STRING,
XMMEAS TYPE STRING,
XSMEAS TYPE STRING,
XPURPOSE TYPE STRING,
PARTTYPE TYPE STRING,
TENANT_SHARE TYPE STRING,
OWNER_SHARE TYPE STRING,
PARTTYPE_CURR TYPE STRING,
MAXCOSTSU TYPE STRING,
BASE TYPE STRING,
BASEAMOUNT TYPE STRING,
BASEDATE TYPE STRING,
XPARTTYPE TYPE STRING,
XBASE TYPE STRING,
PTYPE_SHORTCUT TYPE STRING,
XPTYPE TYPE STRING,
CONDTYPE TYPE STRING,
XTEXTCONDL TYPE STRING,
XTEXTCONDM TYPE STRING,
CURRENCY TYPE STRING,
NET_AMOUNT TYPE STRING,
DEDUCT_TAX TYPE STRING,
NONDEDUCT_TAX TYPE STRING,
GROSSAMOUNT_INFO TYPE STRING,
NET_AMOUNT_OBJ TYPE STRING,
DEDUCT_TAX_OBJ TYPE STRING,
NONDEDUCT_TAX_OBJ TYPE STRING,
APPORTVALUE TYPE STRING,
APPORTVALUERO 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,
CHRGPERC TYPE STRING,
CHRGDETLEVEL TYPE STRING,
XCHRGDETLEVEL TYPE STRING,
FIXFITCHARACT TYPE STRING,
CHRGNETAMOUNT TYPE STRING,
XFIXFITCHARACT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RESCSSU2CN_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_RESCSSU2CN_STR-SCS_SU_GUID sy-vline 
WA_RESCSSU2CN_STR-MANDT sy-vline 
WA_RESCSSU2CN_STR-SCS_ROCN_GUID sy-vline 
WA_RESCSSU2CN_STR-RO_OBJNR sy-vline 
WA_RESCSSU2CN_STR-RO_OBJINFO sy-vline 
WA_RESCSSU2CN_STR-RO_OBJID sy-vline 
WA_RESCSSU2CN_STR-CN_OBJNR sy-vline 
WA_RESCSSU2CN_STR-CN_OBJINFO sy-vline 
WA_RESCSSU2CN_STR-CN_OBJID sy-vline 
WA_RESCSSU2CN_STR-PFROM sy-vline 
WA_RESCSSU2CN_STR-PTO sy-vline 
WA_RESCSSU2CN_STR-PLENGTH sy-vline 
WA_RESCSSU2CN_STR-PROCESSID sy-vline 
WA_RESCSSU2CN_STR-PURPOSE sy-vline 
WA_RESCSSU2CN_STR-MEAS sy-vline 
WA_RESCSSU2CN_STR-XMMEAS sy-vline 
WA_RESCSSU2CN_STR-XSMEAS sy-vline 
WA_RESCSSU2CN_STR-XPURPOSE sy-vline 
WA_RESCSSU2CN_STR-PARTTYPE sy-vline 
WA_RESCSSU2CN_STR-TENANT_SHARE sy-vline 
WA_RESCSSU2CN_STR-OWNER_SHARE sy-vline 
WA_RESCSSU2CN_STR-PARTTYPE_CURR sy-vline 
WA_RESCSSU2CN_STR-MAXCOSTSU sy-vline 
WA_RESCSSU2CN_STR-BASE sy-vline 
WA_RESCSSU2CN_STR-BASEAMOUNT sy-vline 
WA_RESCSSU2CN_STR-BASEDATE sy-vline 
WA_RESCSSU2CN_STR-XPARTTYPE sy-vline 
WA_RESCSSU2CN_STR-XBASE sy-vline 
WA_RESCSSU2CN_STR-PTYPE_SHORTCUT sy-vline 
WA_RESCSSU2CN_STR-XPTYPE sy-vline 
WA_RESCSSU2CN_STR-CONDTYPE sy-vline 
WA_RESCSSU2CN_STR-XTEXTCONDL sy-vline 
WA_RESCSSU2CN_STR-XTEXTCONDM sy-vline 
WA_RESCSSU2CN_STR-CURRENCY sy-vline 
WA_RESCSSU2CN_STR-NET_AMOUNT sy-vline 
WA_RESCSSU2CN_STR-DEDUCT_TAX sy-vline 
WA_RESCSSU2CN_STR-NONDEDUCT_TAX sy-vline 
WA_RESCSSU2CN_STR-GROSSAMOUNT_INFO sy-vline 
WA_RESCSSU2CN_STR-NET_AMOUNT_OBJ sy-vline 
WA_RESCSSU2CN_STR-DEDUCT_TAX_OBJ sy-vline 
WA_RESCSSU2CN_STR-NONDEDUCT_TAX_OBJ sy-vline 
WA_RESCSSU2CN_STR-APPORTVALUE sy-vline 
WA_RESCSSU2CN_STR-APPORTVALUERO sy-vline 
WA_RESCSSU2CN_STR-SCS_PERIOD_GUID sy-vline 
WA_RESCSSU2CN_STR-PARTNER sy-vline 
WA_RESCSSU2CN_STR-PARTNEROBJNR sy-vline 
WA_RESCSSU2CN_STR-XNAME sy-vline 
WA_RESCSSU2CN_STR-XPARTNER sy-vline 
WA_RESCSSU2CN_STR-FIRSTNAME sy-vline 
WA_RESCSSU2CN_STR-LASTNAME sy-vline 
WA_RESCSSU2CN_STR-FULLNAME sy-vline 
WA_RESCSSU2CN_STR-ROLE sy-vline 
WA_RESCSSU2CN_STR-XROLE sy-vline 
WA_RESCSSU2CN_STR-CHRGPERC sy-vline 
WA_RESCSSU2CN_STR-CHRGDETLEVEL sy-vline 
WA_RESCSSU2CN_STR-XCHRGDETLEVEL sy-vline 
WA_RESCSSU2CN_STR-FIXFITCHARACT sy-vline 
WA_RESCSSU2CN_STR-CHRGNETAMOUNT sy-vline 
WA_RESCSSU2CN_STR-XFIXFITCHARACT sy-vline      INTO ld_text SEPARATED BY SPACE.

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