ABAP Select data from SAP table IACTYTYPEPWRKCTR into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACTYTYPEPWRKCTR
*  INTO TABLE @DATA(IT_IACTYTYPEPWRKCTR2).
*--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_IACTYTYPEPWRKCTR INDEX 1 INTO DATA(WA_IACTYTYPEPWRKCTR2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IACTYTYPEPWRKCTR-VALIDITYENDDATE, sy-vline,
  WA_IACTYTYPEPWRKCTR-COSTCTRACTIVITYTYPE, sy-vline,
  WA_IACTYTYPEPWRKCTR-VALIDITYSTARTDATE, sy-vline,
  WA_IACTYTYPEPWRKCTR-WORKCENTER, sy-vline,
  WA_IACTYTYPEPWRKCTR-WORKCENTERTEXT, sy-vline,
  WA_IACTYTYPEPWRKCTR-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IACTYTYPEPWRKCTR 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_IACTYTYPEPWRKCTR 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_IACTYTYPEPWRKCTR INTO WA_IACTYTYPEPWRKCTR.


*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 COSTCTRACTIVITYTYPEQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IACTYTYPEPWRKCTR-COSTCTRACTIVITYTYPEQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACTYTYPEPWRKCTR-COSTCTRACTIVITYTYPEQTYUNIT.
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_IACTYTYPEPWRKCTR_STR, 
MANDT TYPE STRING,
ACTYTYPEWHEREUSEDOBJTYPE TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
COSTCENTERALLOCATION TYPE STRING,
VALIDITYENDDATE TYPE STRING,
COSTCTRACTIVITYTYPE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
WORKCENTER TYPE STRING,
WORKCENTERTEXT TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COSTCTRACTIVITYTYPENAME TYPE STRING,
COSTCTRACTIVITYTYPEQTYUNIT TYPE STRING,
COSTCENTERACTIVITYTYPEFORMULA TYPE STRING,
COSTCTRACTYTYPEISREFERENCED TYPE STRING,
COSTCTRACTYTYPEINCNTVWAGECODE TYPE STRING,
COSTCTRACTYTYPERECDTYPEGRPCODE TYPE STRING,
COSTCTRACTYTYPEVALDTYSTARTDATE TYPE STRING,
COSTCTRACTYTYPEVALDTYENDDATE TYPE STRING,
PRODNRSCETOOLQTYCALCFMLANAME TYPE STRING,
STANDARDWORKFORMULAPARAMNAME TYPE STRING,
STANDARDWORKFORMULAPARAMETER TYPE STRING,
WORKCENTERCATEGORYCODE TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IACTYTYPEPWRKCTR_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_IACTYTYPEPWRKCTR_STR-MANDT sy-vline 
WA_IACTYTYPEPWRKCTR_STR-ACTYTYPEWHEREUSEDOBJTYPE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-WORKCENTERINTERNALID sy-vline 
WA_IACTYTYPEPWRKCTR_STR-WORKCENTERTYPECODE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-COSTCENTERALLOCATION sy-vline 
WA_IACTYTYPEPWRKCTR_STR-VALIDITYENDDATE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-COSTCTRACTIVITYTYPE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-VALIDITYSTARTDATE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-WORKCENTER sy-vline 
WA_IACTYTYPEPWRKCTR_STR-WORKCENTERTEXT sy-vline 
WA_IACTYTYPEPWRKCTR_STR-PLANT sy-vline 
WA_IACTYTYPEPWRKCTR_STR-PLANTNAME sy-vline 
WA_IACTYTYPEPWRKCTR_STR-CONTROLLINGAREA sy-vline 
WA_IACTYTYPEPWRKCTR_STR-COSTCTRACTIVITYTYPENAME sy-vline 
WA_IACTYTYPEPWRKCTR_STR-COSTCTRACTIVITYTYPEQTYUNIT sy-vline 
WA_IACTYTYPEPWRKCTR_STR-COSTCENTERACTIVITYTYPEFORMULA sy-vline 
WA_IACTYTYPEPWRKCTR_STR-COSTCTRACTYTYPEISREFERENCED sy-vline 
WA_IACTYTYPEPWRKCTR_STR-COSTCTRACTYTYPEINCNTVWAGECODE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-COSTCTRACTYTYPERECDTYPEGRPCODE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-COSTCTRACTYTYPEVALDTYSTARTDATE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-COSTCTRACTYTYPEVALDTYENDDATE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-PRODNRSCETOOLQTYCALCFMLANAME sy-vline 
WA_IACTYTYPEPWRKCTR_STR-STANDARDWORKFORMULAPARAMNAME sy-vline 
WA_IACTYTYPEPWRKCTR_STR-STANDARDWORKFORMULAPARAMETER sy-vline 
WA_IACTYTYPEPWRKCTR_STR-WORKCENTERCATEGORYCODE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-LASTCHANGEDATE sy-vline 
WA_IACTYTYPEPWRKCTR_STR-LASTCHANGEDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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