ABAP Select data from SAP table PWCCAPOPWRKDAYS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PWCCAPOPWRKDAYS
*  INTO TABLE @DATA(IT_PWCCAPOPWRKDAYS2).
*--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_PWCCAPOPWRKDAYS INDEX 1 INTO DATA(WA_PWCCAPOPWRKDAYS2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PWCCAPOPWRKDAYS-WEEKDAY, sy-vline,
  WA_PWCCAPOPWRKDAYS-VALIDITYENDDATE, sy-vline,
  WA_PWCCAPOPWRKDAYS-CAPACITYACTIVEVERSION, sy-vline,
  WA_PWCCAPOPWRKDAYS-AVAILABLECAPACITYSHIFT, sy-vline,
  WA_PWCCAPOPWRKDAYS-CAPACITYREQUIREMENT, sy-vline,
  WA_PWCCAPOPWRKDAYS-OPERATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PWCCAPOPWRKDAYS 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_PWCCAPOPWRKDAYS 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_PWCCAPOPWRKDAYS INTO WA_PWCCAPOPWRKDAYS.


*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 NUMCV, internal->external for field OPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PWCCAPOPWRKDAYS-OPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWCCAPOPWRKDAYS-OPERATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PWCCAPOPWRKDAYS-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWCCAPOPWRKDAYS-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PWCCAPOPWRKDAYS-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWCCAPOPWRKDAYS-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_PWCCAPOPWRKDAYS_STR, 
MANDT TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
CAPACITYCATEGORYALLOCATION TYPE STRING,
CAPACITYINTERNALID TYPE STRING,
WEEKDAY TYPE STRING,
VALIDITYENDDATE TYPE STRING,
CAPACITYACTIVEVERSION TYPE STRING,
AVAILABLECAPACITYSHIFT TYPE STRING,
CAPACITYREQUIREMENT TYPE STRING,
OPERATION TYPE STRING,
CALENDARDATE TYPE STRING,
SHIFTNAME TYPE STRING,
MATERIAL TYPE STRING,
ORDERID TYPE STRING,
PLANT TYPE STRING,
MRPCONTROLLER TYPE STRING,
WORKCENTER TYPE STRING,
FACTORYCALENDAR TYPE STRING,
CALENDARWEEK TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARYEAR TYPE STRING,
WORKCENTERRESPONSIBLE TYPE STRING,
WORKCENTERCATEGORYCODE TYPE STRING,
FACTORYCALENDARDATE TYPE STRING,
CALCAPACITYINPARALLEL TYPE STRING,
CEILEDCALCAPINPARELLEL TYPE STRING,
TOTOPERATINGDURATIONINSECONDS TYPE STRING,
CAPACITYSTARTTIME TYPE STRING,
CAPACITYENDTIME TYPE STRING,
ISSTARTDAY TYPE STRING,
ISENDDAY TYPE STRING,
NIGHTSPLITDATE TYPE STRING,
AVAILABLECAPACITYINTERVALDURN TYPE STRING,
WORKDAYRULE TYPE STRING,
CAPACITYREQUIREMENTORIGIN TYPE STRING,
CAPACITYREQUIREMENTUNIT TYPE STRING,
ORDERINTERNALID TYPE STRING,
ORDERTYPE TYPE STRING,
ORDERCATEGORY TYPE STRING,
PRODUCTIONVERSION TYPE STRING,
ORDERPLANNEDTOTALQTY TYPE STRING,
BASEUNIT TYPE STRING,
OPERATIONPLANNINGSTATUSCODE TYPE STRING,
OPERATIONLATESTSTARTDATE TYPE STRING,
OPERATIONLATESTSTARTTIME TYPE STRING,
OPERATIONLATESTENDDATE TYPE STRING,
OPERATIONLATESTENDTIME TYPE STRING,
OPLTSTSCHEDLDEXECSTRTTME TYPE STRING,
OPLTSTSCHEDLDEXECENDTME TYPE STRING,
OPLTSTSCHEDLDPROCGSTRTDTE TYPE STRING,
OPLTSTSCHEDLDPROCGSTRTTME TYPE STRING,
OPLTSTSCHEDLDTRDWNSTRTDTE TYPE STRING,
OPLTSTSCHEDLDTRDWNSTRTTME TYPE STRING,
REMAININGCAPREQOPSEGSETUPDURN TYPE STRING,
REMAININGCAPREQOPSEGPROCGDURN TYPE STRING,
REMAININGCAPREQOPSEGTRDWNDURN TYPE STRING,
REQUIREMENTHOURS TYPE STRING,
TOTREQUIREMENTINSECONDS TYPE STRING,
ORDERSTATUSCODE TYPE STRING,
ORDERFIRMINGSTATUSCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PWCCAPOPWRKDAYS_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_PWCCAPOPWRKDAYS_STR-MANDT sy-vline 
WA_PWCCAPOPWRKDAYS_STR-WORKCENTERINTERNALID sy-vline 
WA_PWCCAPOPWRKDAYS_STR-WORKCENTERTYPECODE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CAPACITYCATEGORYALLOCATION sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CAPACITYINTERNALID sy-vline 
WA_PWCCAPOPWRKDAYS_STR-WEEKDAY sy-vline 
WA_PWCCAPOPWRKDAYS_STR-VALIDITYENDDATE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CAPACITYACTIVEVERSION sy-vline 
WA_PWCCAPOPWRKDAYS_STR-AVAILABLECAPACITYSHIFT sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CAPACITYREQUIREMENT sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPERATION sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CALENDARDATE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-SHIFTNAME sy-vline 
WA_PWCCAPOPWRKDAYS_STR-MATERIAL sy-vline 
WA_PWCCAPOPWRKDAYS_STR-ORDERID sy-vline 
WA_PWCCAPOPWRKDAYS_STR-PLANT sy-vline 
WA_PWCCAPOPWRKDAYS_STR-MRPCONTROLLER sy-vline 
WA_PWCCAPOPWRKDAYS_STR-WORKCENTER sy-vline 
WA_PWCCAPOPWRKDAYS_STR-FACTORYCALENDAR sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CALENDARWEEK sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CALENDARMONTH sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CALENDARYEAR sy-vline 
WA_PWCCAPOPWRKDAYS_STR-WORKCENTERRESPONSIBLE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-WORKCENTERCATEGORYCODE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-FACTORYCALENDARDATE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CALCAPACITYINPARALLEL sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CEILEDCALCAPINPARELLEL sy-vline 
WA_PWCCAPOPWRKDAYS_STR-TOTOPERATINGDURATIONINSECONDS sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CAPACITYSTARTTIME sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CAPACITYENDTIME sy-vline 
WA_PWCCAPOPWRKDAYS_STR-ISSTARTDAY sy-vline 
WA_PWCCAPOPWRKDAYS_STR-ISENDDAY sy-vline 
WA_PWCCAPOPWRKDAYS_STR-NIGHTSPLITDATE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-AVAILABLECAPACITYINTERVALDURN sy-vline 
WA_PWCCAPOPWRKDAYS_STR-WORKDAYRULE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CAPACITYREQUIREMENTORIGIN sy-vline 
WA_PWCCAPOPWRKDAYS_STR-CAPACITYREQUIREMENTUNIT sy-vline 
WA_PWCCAPOPWRKDAYS_STR-ORDERINTERNALID sy-vline 
WA_PWCCAPOPWRKDAYS_STR-ORDERTYPE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-ORDERCATEGORY sy-vline 
WA_PWCCAPOPWRKDAYS_STR-PRODUCTIONVERSION sy-vline 
WA_PWCCAPOPWRKDAYS_STR-ORDERPLANNEDTOTALQTY sy-vline 
WA_PWCCAPOPWRKDAYS_STR-BASEUNIT sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPERATIONPLANNINGSTATUSCODE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPERATIONLATESTSTARTDATE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPERATIONLATESTSTARTTIME sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPERATIONLATESTENDDATE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPERATIONLATESTENDTIME sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPLTSTSCHEDLDEXECSTRTTME sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPLTSTSCHEDLDEXECENDTME sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPLTSTSCHEDLDPROCGSTRTDTE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPLTSTSCHEDLDPROCGSTRTTME sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPLTSTSCHEDLDTRDWNSTRTDTE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-OPLTSTSCHEDLDTRDWNSTRTTME sy-vline 
WA_PWCCAPOPWRKDAYS_STR-REMAININGCAPREQOPSEGSETUPDURN sy-vline 
WA_PWCCAPOPWRKDAYS_STR-REMAININGCAPREQOPSEGPROCGDURN sy-vline 
WA_PWCCAPOPWRKDAYS_STR-REMAININGCAPREQOPSEGTRDWNDURN sy-vline 
WA_PWCCAPOPWRKDAYS_STR-REQUIREMENTHOURS sy-vline 
WA_PWCCAPOPWRKDAYS_STR-TOTREQUIREMENTINSECONDS sy-vline 
WA_PWCCAPOPWRKDAYS_STR-ORDERSTATUSCODE sy-vline 
WA_PWCCAPOPWRKDAYS_STR-ORDERFIRMINGSTATUSCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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