ABAP Select data from SAP table IPPWRKCNTRCOSTC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPPWRKCNTRCOSTC
*  INTO TABLE @DATA(IT_IPPWRKCNTRCOSTC2).
*--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_IPPWRKCNTRCOSTC INDEX 1 INTO DATA(WA_IPPWRKCNTRCOSTC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPPWRKCNTRCOSTC>-MANDT = 1.
<IPPWRKCNTRCOSTC>-WORKCENTERINTERNALID = 1.
<IPPWRKCNTRCOSTC>-WORKCENTERTYPECODE = 1.
<IPPWRKCNTRCOSTC>-COSTCENTERALLOCATION = 1.
<IPPWRKCNTRCOSTC>-VALIDITYENDDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPPWRKCNTRCOSTC-VALIDITYSTARTDATE, sy-vline,
  WA_IPPWRKCNTRCOSTC-LASTCHANGEDATE, sy-vline,
  WA_IPPWRKCNTRCOSTC-LASTCHANGEDBYUSER, sy-vline,
  WA_IPPWRKCNTRCOSTC-PLANT, sy-vline,
  WA_IPPWRKCNTRCOSTC-WORKCENTERCATEGORYCODE, sy-vline,
  WA_IPPWRKCNTRCOSTC-CONTROLLINGAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPPWRKCNTRCOSTC 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_IPPWRKCNTRCOSTC 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_IPPWRKCNTRCOSTC INTO WA_IPPWRKCNTRCOSTC.


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

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

*Conversion exit ALPHA, internal->external for field BUSINESSPROCESS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPPWRKCNTRCOSTC-BUSINESSPROCESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPPWRKCNTRCOSTC-BUSINESSPROCESS.
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_IPPWRKCNTRCOSTC_STR, 
MANDT TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
COSTCENTERALLOCATION TYPE STRING,
VALIDITYENDDATE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
PLANT TYPE STRING,
WORKCENTERCATEGORYCODE TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COSTCENTER TYPE STRING,
COSTCTRACTIVITYTYPE TYPE STRING,
COSTCTRACTIVITYTYPEQTYUNIT TYPE STRING,
BUSINESSPROCESS TYPE STRING,
ACTIVITYDESCORIGINTYPE TYPE STRING,
COSTCENTERACTIVITYALTVDESCID TYPE STRING,
COSTCENTERACTIVITYTYPEFORMULA TYPE STRING,
COSTCTRACTYTYPEISREFERENCED TYPE STRING,
COSTCTRACTYTYPEINCNTVWAGECODE TYPE STRING,
COSTCTRACTYTYPERECDTYPEGRPCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPPWRKCNTRCOSTC_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_IPPWRKCNTRCOSTC_STR-MANDT sy-vline 
WA_IPPWRKCNTRCOSTC_STR-WORKCENTERINTERNALID sy-vline 
WA_IPPWRKCNTRCOSTC_STR-WORKCENTERTYPECODE sy-vline 
WA_IPPWRKCNTRCOSTC_STR-COSTCENTERALLOCATION sy-vline 
WA_IPPWRKCNTRCOSTC_STR-VALIDITYENDDATE sy-vline 
WA_IPPWRKCNTRCOSTC_STR-VALIDITYSTARTDATE sy-vline 
WA_IPPWRKCNTRCOSTC_STR-LASTCHANGEDATE sy-vline 
WA_IPPWRKCNTRCOSTC_STR-LASTCHANGEDBYUSER sy-vline 
WA_IPPWRKCNTRCOSTC_STR-PLANT sy-vline 
WA_IPPWRKCNTRCOSTC_STR-WORKCENTERCATEGORYCODE sy-vline 
WA_IPPWRKCNTRCOSTC_STR-CONTROLLINGAREA sy-vline 
WA_IPPWRKCNTRCOSTC_STR-COSTCENTER sy-vline 
WA_IPPWRKCNTRCOSTC_STR-COSTCTRACTIVITYTYPE sy-vline 
WA_IPPWRKCNTRCOSTC_STR-COSTCTRACTIVITYTYPEQTYUNIT sy-vline 
WA_IPPWRKCNTRCOSTC_STR-BUSINESSPROCESS sy-vline 
WA_IPPWRKCNTRCOSTC_STR-ACTIVITYDESCORIGINTYPE sy-vline 
WA_IPPWRKCNTRCOSTC_STR-COSTCENTERACTIVITYALTVDESCID sy-vline 
WA_IPPWRKCNTRCOSTC_STR-COSTCENTERACTIVITYTYPEFORMULA sy-vline 
WA_IPPWRKCNTRCOSTC_STR-COSTCTRACTYTYPEISREFERENCED sy-vline 
WA_IPPWRKCNTRCOSTC_STR-COSTCTRACTYTYPEINCNTVWAGECODE sy-vline 
WA_IPPWRKCNTRCOSTC_STR-COSTCTRACTYTYPERECDTYPEGRPCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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