ABAP Select data from SAP table WCS_SP_WAPI_LIFECYCLE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WCS_SP_WAPI_LIFECYCLE
*  INTO TABLE @DATA(IT_WCS_SP_WAPI_LIFECYCLE2).
*--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_WCS_SP_WAPI_LIFECYCLE INDEX 1 INTO DATA(WA_WCS_SP_WAPI_LIFECYCLE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WCS_SP_WAPI_LIFECYCLE>-SYSSTFLG = 1.
<WCS_SP_WAPI_LIFECYCLE>-CREA = 1.
<WCS_SP_WAPI_LIFECYCLE>-PREP = 1.
<WCS_SP_WAPI_LIFECYCLE>-CHGN = 1.
<WCS_SP_WAPI_LIFECYCLE>-PWP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WCS_SP_WAPI_LIFECYCLE-WPHO, sy-vline,
  WA_WCS_SP_WAPI_LIFECYCLE-CLSD, sy-vline,
  WA_WCS_SP_WAPI_LIFECYCLE-REJC, sy-vline,
  WA_WCS_SP_WAPI_LIFECYCLE-INAK, sy-vline,
  WA_WCS_SP_WAPI_LIFECYCLE-DLFL, sy-vline,
  WA_WCS_SP_WAPI_LIFECYCLE-TENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WCS_SP_WAPI_LIFECYCLE 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_WCS_SP_WAPI_LIFECYCLE 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_WCS_SP_WAPI_LIFECYCLE INTO WA_WCS_SP_WAPI_LIFECYCLE.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_WCS_SP_WAPI_LIFECYCLE_STR, 
SYSSTFLG TYPE STRING,
CREA TYPE STRING,
PREP TYPE STRING,
CHGN TYPE STRING,
PWP TYPE STRING,
WPHO TYPE STRING,
CLSD TYPE STRING,
REJC TYPE STRING,
INAK TYPE STRING,
DLFL TYPE STRING,
TENT TYPE STRING,
MOBI TYPE STRING,
SYSST TYPE STRING,
USRST TYPE STRING,
TLCNT_ICON TYPE STRING,
TLCNT_TEXT TYPE STRING,
LCPHASE_ICON TYPE STRING,
LCPHASE_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WCS_SP_WAPI_LIFECYCLE_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_WCS_SP_WAPI_LIFECYCLE_STR-SYSSTFLG sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-CREA sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-PREP sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-CHGN sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-PWP sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-WPHO sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-CLSD sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-REJC sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-INAK sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-DLFL sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-TENT sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-MOBI sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-SYSST sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-USRST sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-TLCNT_ICON sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-TLCNT_TEXT sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-LCPHASE_ICON sy-vline 
WA_WCS_SP_WAPI_LIFECYCLE_STR-LCPHASE_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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