ABAP Select data from SAP table PPMRP_WORKCENTER_UTILIZN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPMRP_WORKCENTER_UTILIZN
*  INTO TABLE @DATA(IT_PPMRP_WORKCENTER_UTILIZN2).
*--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_PPMRP_WORKCENTER_UTILIZN INDEX 1 INTO DATA(WA_PPMRP_WORKCENTER_UTILIZN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPMRP_WORKCENTER_UTILIZN>-WORKCENTERINTERNALID = 1.
<PPMRP_WORKCENTER_UTILIZN>-WORKCENTERTYPECODE = 1.
<PPMRP_WORKCENTER_UTILIZN>-CAPACITYCATEGORYALLOCATION = 1.
<PPMRP_WORKCENTER_UTILIZN>-CAPACITYINTERNALID = 1.
<PPMRP_WORKCENTER_UTILIZN>-WORKCENTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPMRP_WORKCENTER_UTILIZN-WORKCENTERDESC, sy-vline,
  WA_PPMRP_WORKCENTER_UTILIZN-ISNONWORKINGDAY, sy-vline,
  WA_PPMRP_WORKCENTER_UTILIZN-BASEUNIT, sy-vline,
  WA_PPMRP_WORKCENTER_UTILIZN-WORKCENTERCAPACITYUTILZN, sy-vline,
  WA_PPMRP_WORKCENTER_UTILIZN-WORKCENTERCAPUTILZNVALUECOLOR, sy-vline,
  WA_PPMRP_WORKCENTER_UTILIZN-CAPACITYEVALUATIONTIMEPERIOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPMRP_WORKCENTER_UTILIZN 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_PPMRP_WORKCENTER_UTILIZN 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_PPMRP_WORKCENTER_UTILIZN INTO WA_PPMRP_WORKCENTER_UTILIZN.


*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 CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPMRP_WORKCENTER_UTILIZN-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMRP_WORKCENTER_UTILIZN-BASEUNIT.
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_PPMRP_WORKCENTER_UTILIZN_STR, 
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
CAPACITYCATEGORYALLOCATION TYPE STRING,
CAPACITYINTERNALID TYPE STRING,
WORKCENTER TYPE STRING,
WORKCENTERDESC TYPE STRING,
ISNONWORKINGDAY TYPE STRING,
BASEUNIT TYPE STRING,
WORKCENTERCAPACITYUTILZN TYPE STRING,
WORKCENTERCAPUTILZNVALUECOLOR TYPE STRING,
CAPACITYEVALUATIONTIMEPERIOD TYPE STRING,
CAPACITYEVALUATIONTIMEPERIODWK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPMRP_WORKCENTER_UTILIZN_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_PPMRP_WORKCENTER_UTILIZN_STR-WORKCENTERINTERNALID sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-WORKCENTERTYPECODE sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-CAPACITYCATEGORYALLOCATION sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-CAPACITYINTERNALID sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-WORKCENTER sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-WORKCENTERDESC sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-ISNONWORKINGDAY sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-BASEUNIT sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-WORKCENTERCAPACITYUTILZN sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-WORKCENTERCAPUTILZNVALUECOLOR sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-CAPACITYEVALUATIONTIMEPERIOD sy-vline 
WA_PPMRP_WORKCENTER_UTILIZN_STR-CAPACITYEVALUATIONTIMEPERIODWK sy-vline      INTO ld_text SEPARATED BY SPACE.

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