ABAP Select data from SAP table EWASINDPRCPERIOD_DETL_LIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWASINDPRCPERIOD_DETL_LIST
*  INTO TABLE @DATA(IT_EWASINDPRCPERIOD_DETL_LIST2).
*--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_EWASINDPRCPERIOD_DETL_LIST INDEX 1 INTO DATA(WA_EWASINDPRCPERIOD_DETL_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWASINDPRCPERIOD_DETL_LIST>-MANDT = 1.
<EWASINDPRCPERIOD_DETL_LIST>-INDEXNAME = 1.
<EWASINDPRCPERIOD_DETL_LIST>-LAUFNR = 1.
<EWASINDPRCPERIOD_DETL_LIST>-VON = 1.
<EWASINDPRCPERIOD_DETL_LIST>-BIS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWASINDPRCPERIOD_DETL_LIST-STATUS, sy-vline,
  WA_EWASINDPRCPERIOD_DETL_LIST-ERDAT, sy-vline,
  WA_EWASINDPRCPERIOD_DETL_LIST-ERNAM, sy-vline,
  WA_EWASINDPRCPERIOD_DETL_LIST-AEDAT, sy-vline,
  WA_EWASINDPRCPERIOD_DETL_LIST-AENAM, sy-vline,
  WA_EWASINDPRCPERIOD_DETL_LIST-DETAIL_INDEX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWASINDPRCPERIOD_DETL_LIST 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_EWASINDPRCPERIOD_DETL_LIST 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_EWASINDPRCPERIOD_DETL_LIST INTO WA_EWASINDPRCPERIOD_DETL_LIST.


*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 STATUS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWASINDPRCPERIOD_DETL_LIST-STATUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWASINDPRCPERIOD_DETL_LIST-STATUS.
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_EWASINDPRCPERIOD_DETL_LIST_STR, 
MANDT TYPE STRING,
INDEXNAME TYPE STRING,
LAUFNR TYPE STRING,
VON TYPE STRING,
BIS TYPE STRING,
STATUS TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
DETAIL_INDEX TYPE STRING,
SYS_CELLSTYLE TYPE STRING,
SYS_CELLCOLOR TYPE STRING,
STATUS_INFO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWASINDPRCPERIOD_DETL_LIST_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_EWASINDPRCPERIOD_DETL_LIST_STR-MANDT sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-INDEXNAME sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-LAUFNR sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-VON sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-BIS sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-STATUS sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-ERDAT sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-ERNAM sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-AEDAT sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-AENAM sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-DETAIL_INDEX sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-SYS_CELLSTYLE sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-SYS_CELLCOLOR sy-vline 
WA_EWASINDPRCPERIOD_DETL_LIST_STR-STATUS_INFO sy-vline      INTO ld_text SEPARATED BY SPACE.

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