ABAP Select data from SAP table HRWPC_S_MONITORINGTASK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRWPC_S_MONITORINGTASK
*  INTO TABLE @DATA(IT_HRWPC_S_MONITORINGTASK2).
*--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_HRWPC_S_MONITORINGTASK INDEX 1 INTO DATA(WA_HRWPC_S_MONITORINGTASK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRWPC_S_MONITORINGTASK>-PERNR = 1.
<HRWPC_S_MONITORINGTASK>-INFTY = 1.
<HRWPC_S_MONITORINGTASK>-SUBTY = 1.
<HRWPC_S_MONITORINGTASK>-OBJPS = 1.
<HRWPC_S_MONITORINGTASK>-SPRPS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRWPC_S_MONITORINGTASK-ENDDA, sy-vline,
  WA_HRWPC_S_MONITORINGTASK-BEGDA, sy-vline,
  WA_HRWPC_S_MONITORINGTASK-SEQNR, sy-vline,
  WA_HRWPC_S_MONITORINGTASK-AEDTM, sy-vline,
  WA_HRWPC_S_MONITORINGTASK-UNAME, sy-vline,
  WA_HRWPC_S_MONITORINGTASK-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRWPC_S_MONITORINGTASK 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_HRWPC_S_MONITORINGTASK 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_HRWPC_S_MONITORINGTASK INTO WA_HRWPC_S_MONITORINGTASK.


*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 GJAHR, internal->external for field TMJHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRWPC_S_MONITORINGTASK-TMJHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRWPC_S_MONITORINGTASK-TMJHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MNJHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRWPC_S_MONITORINGTASK-MNJHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRWPC_S_MONITORINGTASK-MNJHR.
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_HRWPC_S_MONITORINGTASK_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
TMART TYPE STRING,
TERMN TYPE STRING,
MNDAT TYPE STRING,
BVMRK TYPE STRING,
TMJHR TYPE STRING,
TMMON TYPE STRING,
TMTAG TYPE STRING,
MNJHR TYPE STRING,
MNMON TYPE STRING,
MNTAG TYPE STRING,
TMART_TEXT TYPE STRING,
BVMRK_TEXT TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
TEXT3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRWPC_S_MONITORINGTASK_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_HRWPC_S_MONITORINGTASK_STR-PERNR sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-INFTY sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-SUBTY sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-OBJPS sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-SPRPS sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-ENDDA sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-BEGDA sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-SEQNR sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-AEDTM sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-UNAME sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-HISTO sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-ITXEX sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-REFEX sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-ORDEX sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-ITBLD sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-PREAS sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-FLAG1 sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-FLAG2 sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-FLAG3 sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-FLAG4 sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-RESE1 sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-RESE2 sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-TMART sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-TERMN sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-MNDAT sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-BVMRK sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-TMJHR sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-TMMON sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-TMTAG sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-MNJHR sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-MNMON sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-MNTAG sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-TMART_TEXT sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-BVMRK_TEXT sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-TEXT1 sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-TEXT2 sy-vline 
WA_HRWPC_S_MONITORINGTASK_STR-TEXT3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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