ABAP Select data from SAP table DPR_TS_API_PSS_CHKLITEM_O into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DPR_TS_API_PSS_CHKLITEM_O
*  INTO TABLE @DATA(IT_DPR_TS_API_PSS_CHKLITEM_O2).
*--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_DPR_TS_API_PSS_CHKLITEM_O INDEX 1 INTO DATA(WA_DPR_TS_API_PSS_CHKLITEM_O2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DPR_TS_API_PSS_CHKLITEM_O>-CKLITEM_GUID = 1.
<DPR_TS_API_PSS_CHKLITEM_O>-DESCRIPTION = 1.
<DPR_TS_API_PSS_CHKLITEM_O>-DESCRIPTION_FC = 1.
<DPR_TS_API_PSS_CHKLITEM_O>-PARENT_GUID = 1.
<DPR_TS_API_PSS_CHKLITEM_O>-PROJECT_DEFINITION_GUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DPR_TS_API_PSS_CHKLITEM_O-PROJECT_NUMBER, sy-vline,
  WA_DPR_TS_API_PSS_CHKLITEM_O-PROJECT_NUMBER_FC, sy-vline,
  WA_DPR_TS_API_PSS_CHKLITEM_O-PROJECT_DESCRIPTION, sy-vline,
  WA_DPR_TS_API_PSS_CHKLITEM_O-PROJECT_DESCRIPTION_FC, sy-vline,
  WA_DPR_TS_API_PSS_CHKLITEM_O-PHASE_GUID, sy-vline,
  WA_DPR_TS_API_PSS_CHKLITEM_O-PHASE_NUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DPR_TS_API_PSS_CHKLITEM_O 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_DPR_TS_API_PSS_CHKLITEM_O 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_DPR_TS_API_PSS_CHKLITEM_O INTO WA_DPR_TS_API_PSS_CHKLITEM_O.


*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 PLANNED_WORK_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DPR_TS_API_PSS_CHKLITEM_O-PLANNED_WORK_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DPR_TS_API_PSS_CHKLITEM_O-PLANNED_WORK_UNIT.
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_DPR_TS_API_PSS_CHKLITEM_O_STR, 
CKLITEM_GUID TYPE STRING,
DESCRIPTION TYPE STRING,
DESCRIPTION_FC TYPE STRING,
PARENT_GUID TYPE STRING,
PROJECT_DEFINITION_GUID TYPE STRING,
PROJECT_NUMBER TYPE STRING,
PROJECT_NUMBER_FC TYPE STRING,
PROJECT_DESCRIPTION TYPE STRING,
PROJECT_DESCRIPTION_FC TYPE STRING,
PHASE_GUID TYPE STRING,
PHASE_NUMBER TYPE STRING,
PHASE_NUMBER_FC TYPE STRING,
CHECKLIST_NUMBER TYPE STRING,
CHECKLIST_NUMBER_FC TYPE STRING,
CHECKLIST_DESCRIPTION TYPE STRING,
CHECKLIST_DESCRIPTION_FC TYPE STRING,
RESPONSIBLE_ROLE_GUID TYPE STRING,
RESPONSIBLE_ROLE TYPE STRING,
RESPONSIBLE_ROLE_FC TYPE STRING,
CONSTR_TYPE_FIN TYPE STRING,
CONSTR_TYPE_FIN_FC TYPE STRING,
CONSTR_FINISH_DATE TYPE STRING,
CONSTR_FINISH_DATE_FC TYPE STRING,
CALCULATED_EARLY_FINISH_DATE TYPE STRING,
CALCULATED_EARLY_FINISH_DAT_FC TYPE STRING,
CALCULATED_LATE_FINISH_DATE TYPE STRING,
CALCULATED_LATE_FINISH_DATE_FC TYPE STRING,
RESULT_CKL_ITEM TYPE STRING,
RESULT_CKL_ITEM_FC TYPE STRING,
MAX_SEVERITY TYPE STRING,
MAX_SEVERITY_TEXT TYPE STRING,
MAX_SEVERITY_TEXT_FC TYPE STRING,
MAX_SEVERITY_ICON TYPE STRING,
URL_TO_CPRO TYPE STRING,
GROUPING TYPE STRING,
GROUPING_FC TYPE STRING,
PRIORITY TYPE STRING,
PRIORITY_FC TYPE STRING,
NUMBER_DOCS TYPE STRING,
NUMBER_OBJLINKS TYPE STRING,
NUMBER_COLLS TYPE STRING,
PLANNED_WORK TYPE STRING,
PLANNED_WORK_UNIT TYPE STRING,
CHANGEABILITY TYPE STRING,
CHANGE_ID TYPE STRING,
LOCKED TYPE STRING,
AC_SET_STATUS TYPE STRING,
AC_SET_RESPROLE TYPE STRING,
AC_CREATE_TSK TYPE STRING,
AC_DEL_ITEM TYPE STRING,
IS_ISSUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DPR_TS_API_PSS_CHKLITEM_O_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_DPR_TS_API_PSS_CHKLITEM_O_STR-CKLITEM_GUID sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-DESCRIPTION sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-DESCRIPTION_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PARENT_GUID sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PROJECT_DEFINITION_GUID sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PROJECT_NUMBER sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PROJECT_NUMBER_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PROJECT_DESCRIPTION sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PROJECT_DESCRIPTION_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PHASE_GUID sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PHASE_NUMBER sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PHASE_NUMBER_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CHECKLIST_NUMBER sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CHECKLIST_NUMBER_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CHECKLIST_DESCRIPTION sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CHECKLIST_DESCRIPTION_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-RESPONSIBLE_ROLE_GUID sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-RESPONSIBLE_ROLE sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-RESPONSIBLE_ROLE_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CONSTR_TYPE_FIN sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CONSTR_TYPE_FIN_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CONSTR_FINISH_DATE sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CONSTR_FINISH_DATE_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CALCULATED_EARLY_FINISH_DATE sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CALCULATED_EARLY_FINISH_DAT_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CALCULATED_LATE_FINISH_DATE sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CALCULATED_LATE_FINISH_DATE_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-RESULT_CKL_ITEM sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-RESULT_CKL_ITEM_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-MAX_SEVERITY sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-MAX_SEVERITY_TEXT sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-MAX_SEVERITY_TEXT_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-MAX_SEVERITY_ICON sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-URL_TO_CPRO sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-GROUPING sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-GROUPING_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PRIORITY sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PRIORITY_FC sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-NUMBER_DOCS sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-NUMBER_OBJLINKS sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-NUMBER_COLLS sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PLANNED_WORK sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-PLANNED_WORK_UNIT sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CHANGEABILITY sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-CHANGE_ID sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-LOCKED sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-AC_SET_STATUS sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-AC_SET_RESPROLE sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-AC_CREATE_TSK sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-AC_DEL_ITEM sy-vline 
WA_DPR_TS_API_PSS_CHKLITEM_O_STR-IS_ISSUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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