ABAP Select data from SAP table PTARQ_ESA_ITEM_DETAIL_STRUC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTARQ_ESA_ITEM_DETAIL_STRUC
*  INTO TABLE @DATA(IT_PTARQ_ESA_ITEM_DETAIL_STRUC2).
*--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_PTARQ_ESA_ITEM_DETAIL_STRUC INDEX 1 INTO DATA(WA_PTARQ_ESA_ITEM_DETAIL_STRUC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTARQ_ESA_ITEM_DETAIL_STRUC>-ABSENCE_TYPE = 1.
<PTARQ_ESA_ITEM_DETAIL_STRUC>-BEGDA = 1.
<PTARQ_ESA_ITEM_DETAIL_STRUC>-ENDDA = 1.
<PTARQ_ESA_ITEM_DETAIL_STRUC>-BEGIN_TIME = 1.
<PTARQ_ESA_ITEM_DETAIL_STRUC>-END_TIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTARQ_ESA_ITEM_DETAIL_STRUC-ATTABS_HOURS, sy-vline,
  WA_PTARQ_ESA_ITEM_DETAIL_STRUC-VTKEN, sy-vline,
  WA_PTARQ_ESA_ITEM_DETAIL_STRUC-ABWTG, sy-vline,
  WA_PTARQ_ESA_ITEM_DETAIL_STRUC-KALTG, sy-vline,
  WA_PTARQ_ESA_ITEM_DETAIL_STRUC-HRSIF, sy-vline,
  WA_PTARQ_ESA_ITEM_DETAIL_STRUC-ALLDF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTARQ_ESA_ITEM_DETAIL_STRUC 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_PTARQ_ESA_ITEM_DETAIL_STRUC 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_PTARQ_ESA_ITEM_DETAIL_STRUC INTO WA_PTARQ_ESA_ITEM_DETAIL_STRUC.


*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_PTARQ_ESA_ITEM_DETAIL_STRUC-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTARQ_ESA_ITEM_DETAIL_STRUC-COSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORDER_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTARQ_ESA_ITEM_DETAIL_STRUC-ORDER_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTARQ_ESA_ITEM_DETAIL_STRUC-ORDER_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field WBS_ELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PTARQ_ESA_ITEM_DETAIL_STRUC-WBS_ELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTARQ_ESA_ITEM_DETAIL_STRUC-WBS_ELEMENT.
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_PTARQ_ESA_ITEM_DETAIL_STRUC_STR, 
ABSENCE_TYPE TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
BEGIN_TIME TYPE STRING,
END_TIME TYPE STRING,
ATTABS_HOURS TYPE STRING,
VTKEN TYPE STRING,
ABWTG TYPE STRING,
KALTG TYPE STRING,
HRSIF TYPE STRING,
ALLDF TYPE STRING,
ABRTG TYPE STRING,
ABRST TYPE STRING,
UMSKD TYPE STRING,
UMSCH TYPE STRING,
OBJECT_TYPE TYPE STRING,
OBJ_ID TYPE STRING,
COMP_CODE TYPE STRING,
COSTCENTER TYPE STRING,
ORDER_ID TYPE STRING,
WBS_ELEMENT TYPE STRING,
CUSTOMER01 TYPE STRING,
CUSTOMER02 TYPE STRING,
CUSTOMER03 TYPE STRING,
CUSTOMER04 TYPE STRING,
CUSTOMER05 TYPE STRING,
CUSTOMER06 TYPE STRING,
CUSTOMER07 TYPE STRING,
CUSTOMER08 TYPE STRING,
CUSTOMER09 TYPE STRING,
CUSTOMER10 TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTARQ_ESA_ITEM_DETAIL_STRUC_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_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-ABSENCE_TYPE sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-BEGDA sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-ENDDA sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-BEGIN_TIME sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-END_TIME sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-ATTABS_HOURS sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-VTKEN sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-ABWTG sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-KALTG sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-HRSIF sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-ALLDF sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-ABRTG sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-ABRST sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-UMSKD sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-UMSCH sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-OBJECT_TYPE sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-OBJ_ID sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-COMP_CODE sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-COSTCENTER sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-ORDER_ID sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-WBS_ELEMENT sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-CUSTOMER01 sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-CUSTOMER02 sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-CUSTOMER03 sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-CUSTOMER04 sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-CUSTOMER05 sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-CUSTOMER06 sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-CUSTOMER07 sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-CUSTOMER08 sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-CUSTOMER09 sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-CUSTOMER10 sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-AEDTM sy-vline 
WA_PTARQ_ESA_ITEM_DETAIL_STRUC_STR-UNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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