ABAP Select data from SAP table RESCSROCN_MEAS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RESCSROCN_MEAS
*  INTO TABLE @DATA(IT_RESCSROCN_MEAS2).
*--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_RESCSROCN_MEAS INDEX 1 INTO DATA(WA_RESCSROCN_MEAS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RESCSROCN_MEAS>-MANDT = 1.
<RESCSROCN_MEAS>-MEASOBJGUID = 1.
<RESCSROCN_MEAS>-SETTL_GUID = 1.
<RESCSROCN_MEAS>-SETTL_LEVEL = 1.
<RESCSROCN_MEAS>-SCS_SU_GUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RESCSROCN_MEAS-SETTLOBJ_GUID, sy-vline,
  WA_RESCSROCN_MEAS-POINT, sy-vline,
  WA_RESCSROCN_MEAS-VALIDFROM, sy-vline,
  WA_RESCSROCN_MEAS-VALIDTO, sy-vline,
  WA_RESCSROCN_MEAS-SCS_RO_GUID, sy-vline,
  WA_RESCSROCN_MEAS-SCS_ROCN_GUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RESCSROCN_MEAS 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_RESCSROCN_MEAS 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_RESCSROCN_MEAS INTO WA_RESCSROCN_MEAS.


*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 POINT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RESCSROCN_MEAS-POINT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCSROCN_MEAS-POINT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MEASUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RESCSROCN_MEAS-MEASUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCSROCN_MEAS-MEASUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field PTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RESCSROCN_MEAS-PTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCSROCN_MEAS-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_RESCSROCN_MEAS_STR, 
MANDT TYPE STRING,
MEASOBJGUID TYPE STRING,
SETTL_GUID TYPE STRING,
SETTL_LEVEL TYPE STRING,
SCS_SU_GUID TYPE STRING,
SETTLOBJ_GUID TYPE STRING,
POINT TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
SCS_RO_GUID TYPE STRING,
SCS_ROCN_GUID TYPE STRING,
SCS_PERIOD_GUID TYPE STRING,
PLENGTH TYPE STRING,
MEASUNIT TYPE STRING,
MEASVALUE TYPE STRING,
MEASVALUEARR TYPE STRING,
IS_CALCULATED TYPE STRING,
APPORTVALUE TYPE STRING,
APPORTVALUEOPT TYPE STRING,
APPORTVALUEARR TYPE STRING,
PERCENTLOCKEY 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,
PS_OBJINFO TYPE STRING,
PS_OBJID TYPE STRING,
ROTYPE TYPE STRING,
XLROTYPE 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,
PROCESSID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RESCSROCN_MEAS_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_RESCSROCN_MEAS_STR-MANDT sy-vline 
WA_RESCSROCN_MEAS_STR-MEASOBJGUID sy-vline 
WA_RESCSROCN_MEAS_STR-SETTL_GUID sy-vline 
WA_RESCSROCN_MEAS_STR-SETTL_LEVEL sy-vline 
WA_RESCSROCN_MEAS_STR-SCS_SU_GUID sy-vline 
WA_RESCSROCN_MEAS_STR-SETTLOBJ_GUID sy-vline 
WA_RESCSROCN_MEAS_STR-POINT sy-vline 
WA_RESCSROCN_MEAS_STR-VALIDFROM sy-vline 
WA_RESCSROCN_MEAS_STR-VALIDTO sy-vline 
WA_RESCSROCN_MEAS_STR-SCS_RO_GUID sy-vline 
WA_RESCSROCN_MEAS_STR-SCS_ROCN_GUID sy-vline 
WA_RESCSROCN_MEAS_STR-SCS_PERIOD_GUID sy-vline 
WA_RESCSROCN_MEAS_STR-PLENGTH sy-vline 
WA_RESCSROCN_MEAS_STR-MEASUNIT sy-vline 
WA_RESCSROCN_MEAS_STR-MEASVALUE sy-vline 
WA_RESCSROCN_MEAS_STR-MEASVALUEARR sy-vline 
WA_RESCSROCN_MEAS_STR-IS_CALCULATED sy-vline 
WA_RESCSROCN_MEAS_STR-APPORTVALUE sy-vline 
WA_RESCSROCN_MEAS_STR-APPORTVALUEOPT sy-vline 
WA_RESCSROCN_MEAS_STR-APPORTVALUEARR sy-vline 
WA_RESCSROCN_MEAS_STR-PERCENTLOCKEY sy-vline 
WA_RESCSROCN_MEAS_STR-RO_OBJNR sy-vline 
WA_RESCSROCN_MEAS_STR-RO_OBJINFO sy-vline 
WA_RESCSROCN_MEAS_STR-RO_OBJID sy-vline 
WA_RESCSROCN_MEAS_STR-CN_OBJNR sy-vline 
WA_RESCSROCN_MEAS_STR-CN_OBJINFO sy-vline 
WA_RESCSROCN_MEAS_STR-CN_OBJID sy-vline 
WA_RESCSROCN_MEAS_STR-PFROM sy-vline 
WA_RESCSROCN_MEAS_STR-PTO sy-vline 
WA_RESCSROCN_MEAS_STR-PS_OBJINFO sy-vline 
WA_RESCSROCN_MEAS_STR-PS_OBJID sy-vline 
WA_RESCSROCN_MEAS_STR-ROTYPE sy-vline 
WA_RESCSROCN_MEAS_STR-XLROTYPE sy-vline 
WA_RESCSROCN_MEAS_STR-PARTTYPE sy-vline 
WA_RESCSROCN_MEAS_STR-TENANT_SHARE sy-vline 
WA_RESCSROCN_MEAS_STR-OWNER_SHARE sy-vline 
WA_RESCSROCN_MEAS_STR-PARTTYPE_CURR sy-vline 
WA_RESCSROCN_MEAS_STR-MAXCOSTSU sy-vline 
WA_RESCSROCN_MEAS_STR-BASE sy-vline 
WA_RESCSROCN_MEAS_STR-BASEAMOUNT sy-vline 
WA_RESCSROCN_MEAS_STR-BASEDATE sy-vline 
WA_RESCSROCN_MEAS_STR-XPARTTYPE sy-vline 
WA_RESCSROCN_MEAS_STR-XBASE sy-vline 
WA_RESCSROCN_MEAS_STR-PTYPE_SHORTCUT sy-vline 
WA_RESCSROCN_MEAS_STR-XPTYPE sy-vline 
WA_RESCSROCN_MEAS_STR-PROCESSID sy-vline      INTO ld_text SEPARATED BY SPACE.

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