ABAP Select data from SAP table IMPEOAMWRKCTRUSR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMPEOAMWRKCTRUSR
*  INTO TABLE @DATA(IT_IMPEOAMWRKCTRUSR2).
*--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_IMPEOAMWRKCTRUSR INDEX 1 INTO DATA(WA_IMPEOAMWRKCTRUSR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMPEOAMWRKCTRUSR>-MANDT = 1.
<IMPEOAMWRKCTRUSR>-OPACTYNTWKINSTANCE = 1.
<IMPEOAMWRKCTRUSR>-OPACTYNTWKELEMENT = 1.
<IMPEOAMWRKCTRUSR>-USERID = 1.
<IMPEOAMWRKCTRUSR>-USERDESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMPEOAMWRKCTRUSR-BUSINESSPARTNERUUID, sy-vline,
  WA_IMPEOAMWRKCTRUSR-MANUFACTURINGORDER, sy-vline,
  WA_IMPEOAMWRKCTRUSR-OPACTYNTWKSEGMENTTYPE, sy-vline,
  WA_IMPEOAMWRKCTRUSR-WORKCENTER, sy-vline,
  WA_IMPEOAMWRKCTRUSR-WORKCENTERTEXT, sy-vline,
  WA_IMPEOAMWRKCTRUSR-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMPEOAMWRKCTRUSR 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_IMPEOAMWRKCTRUSR 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_IMPEOAMWRKCTRUSR INTO WA_IMPEOAMWRKCTRUSR.


*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 MANUFACTURINGORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMPEOAMWRKCTRUSR-MANUFACTURINGORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMPEOAMWRKCTRUSR-MANUFACTURINGORDER.
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_IMPEOAMWRKCTRUSR_STR, 
MANDT TYPE STRING,
OPACTYNTWKINSTANCE TYPE STRING,
OPACTYNTWKELEMENT TYPE STRING,
USERID TYPE STRING,
USERDESCRIPTION TYPE STRING,
BUSINESSPARTNERUUID TYPE STRING,
MANUFACTURINGORDER TYPE STRING,
OPACTYNTWKSEGMENTTYPE TYPE STRING,
WORKCENTER TYPE STRING,
WORKCENTERTEXT TYPE STRING,
PLANT TYPE STRING,
NROFUSROPNOPACTYASSIGNMENTS TYPE STRING,
USERISQUALIFIED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMPEOAMWRKCTRUSR_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_IMPEOAMWRKCTRUSR_STR-MANDT sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-OPACTYNTWKINSTANCE sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-OPACTYNTWKELEMENT sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-USERID sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-USERDESCRIPTION sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-BUSINESSPARTNERUUID sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-MANUFACTURINGORDER sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-OPACTYNTWKSEGMENTTYPE sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-WORKCENTER sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-WORKCENTERTEXT sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-PLANT sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-NROFUSROPNOPACTYASSIGNMENTS sy-vline 
WA_IMPEOAMWRKCTRUSR_STR-USERISQUALIFIED sy-vline      INTO ld_text SEPARATED BY SPACE.

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