ABAP Select data from SAP table CENTPROJEMCHP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CENTPROJEMCHP
*  INTO TABLE @DATA(IT_CENTPROJEMCHP2).
*--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_CENTPROJEMCHP INDEX 1 INTO DATA(WA_CENTPROJEMCHP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CENTPROJEMCHP>-MANDT = 1.
<CENTPROJEMCHP>-TASKUUID = 1.
<CENTPROJEMCHP>-ENTPROJMASSCHANGEREQUESTUUID = 1.
<CENTPROJEMCHP>-PROJECTUUID = 1.
<CENTPROJEMCHP>-PLANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CENTPROJEMCHP-PROFITCENTER, sy-vline,
  WA_CENTPROJEMCHP-RESPONSIBLECOSTCENTER, sy-vline,
  WA_CENTPROJEMCHP-FACTORYCALENDAR, sy-vline,
  WA_CENTPROJEMCHP-COSTCENTER, sy-vline,
  WA_CENTPROJEMCHP-PROCESSINGSTATUS, sy-vline,
  WA_CENTPROJEMCHP-INVESTMENTPROFILE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CENTPROJEMCHP 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_CENTPROJEMCHP 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_CENTPROJEMCHP INTO WA_CENTPROJEMCHP.


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

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

*Conversion exit ALPHA, internal->external for field COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CENTPROJEMCHP-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CENTPROJEMCHP-COSTCENTER.
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_CENTPROJEMCHP_STR, 
MANDT TYPE STRING,
TASKUUID TYPE STRING,
ENTPROJMASSCHANGEREQUESTUUID TYPE STRING,
PROJECTUUID TYPE STRING,
PLANT TYPE STRING,
PROFITCENTER TYPE STRING,
RESPONSIBLECOSTCENTER TYPE STRING,
FACTORYCALENDAR TYPE STRING,
COSTCENTER TYPE STRING,
PROCESSINGSTATUS TYPE STRING,
INVESTMENTPROFILE TYPE STRING,
PLANNEDSTARTDATE TYPE STRING,
PLANNEDENDDATE TYPE STRING,
ACTUALSTARTDATE TYPE STRING,
ACTUALENDDATE TYPE STRING,
COSTINGSHEET TYPE STRING,
CONTROLLINGAREA TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
COSTINGSHEETPROCEDUREDESC TYPE STRING,
FUNCTIONALAREA TYPE STRING,
FUNCTIONALAREANAME TYPE STRING,
ENTPROJTIMERECGISBLKD TYPE STRING,
BLOCKSTATUSDESCRIPTION TYPE STRING,
ENTPROJSTAFFEXPENSEPOSTGISBLKD TYPE STRING,
ENTPROJSERVICEPOSTINGISBLKD TYPE STRING,
ENTPROJOTHEREXPENSEPOSTGISBLKD TYPE STRING,
ENTPROJPURCHASINGISBLKD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CENTPROJEMCHP_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_CENTPROJEMCHP_STR-MANDT sy-vline 
WA_CENTPROJEMCHP_STR-TASKUUID sy-vline 
WA_CENTPROJEMCHP_STR-ENTPROJMASSCHANGEREQUESTUUID sy-vline 
WA_CENTPROJEMCHP_STR-PROJECTUUID sy-vline 
WA_CENTPROJEMCHP_STR-PLANT sy-vline 
WA_CENTPROJEMCHP_STR-PROFITCENTER sy-vline 
WA_CENTPROJEMCHP_STR-RESPONSIBLECOSTCENTER sy-vline 
WA_CENTPROJEMCHP_STR-FACTORYCALENDAR sy-vline 
WA_CENTPROJEMCHP_STR-COSTCENTER sy-vline 
WA_CENTPROJEMCHP_STR-PROCESSINGSTATUS sy-vline 
WA_CENTPROJEMCHP_STR-INVESTMENTPROFILE sy-vline 
WA_CENTPROJEMCHP_STR-PLANNEDSTARTDATE sy-vline 
WA_CENTPROJEMCHP_STR-PLANNEDENDDATE sy-vline 
WA_CENTPROJEMCHP_STR-ACTUALSTARTDATE sy-vline 
WA_CENTPROJEMCHP_STR-ACTUALENDDATE sy-vline 
WA_CENTPROJEMCHP_STR-COSTINGSHEET sy-vline 
WA_CENTPROJEMCHP_STR-CONTROLLINGAREA sy-vline 
WA_CENTPROJEMCHP_STR-WBSELEMENTINTERNALID sy-vline 
WA_CENTPROJEMCHP_STR-COSTINGSHEETPROCEDUREDESC sy-vline 
WA_CENTPROJEMCHP_STR-FUNCTIONALAREA sy-vline 
WA_CENTPROJEMCHP_STR-FUNCTIONALAREANAME sy-vline 
WA_CENTPROJEMCHP_STR-ENTPROJTIMERECGISBLKD sy-vline 
WA_CENTPROJEMCHP_STR-BLOCKSTATUSDESCRIPTION sy-vline 
WA_CENTPROJEMCHP_STR-ENTPROJSTAFFEXPENSEPOSTGISBLKD sy-vline 
WA_CENTPROJEMCHP_STR-ENTPROJSERVICEPOSTINGISBLKD sy-vline 
WA_CENTPROJEMCHP_STR-ENTPROJOTHEREXPENSEPOSTGISBLKD sy-vline 
WA_CENTPROJEMCHP_STR-ENTPROJPURCHASINGISBLKD sy-vline      INTO ld_text SEPARATED BY SPACE.

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