ABAP Select data from SAP table OICQ9_WRK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OICQ9_WRK 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 OICQ9_WRK. 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 OICQ9_WRK 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_OICQ9_WRK TYPE STANDARD TABLE OF OICQ9_WRK,
      WA_OICQ9_WRK TYPE OICQ9_WRK,
      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: <OICQ9_WRK> TYPE OICQ9_WRK.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OICQ9_WRK.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OICQ9_WRK
  INTO TABLE IT_OICQ9_WRK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OICQ9_WRK
*  INTO TABLE @DATA(IT_OICQ9_WRK2).
*--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_OICQ9_WRK INDEX 1 INTO DATA(WA_OICQ9_WRK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OICQ9_WRK ASSIGNING <OICQ9_WRK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OICQ9_WRK>-MANDT = 1.
<OICQ9_WRK>-KNUMV = 1.
<OICQ9_WRK>-KPOSN = 1.
<OICQ9_WRK>-STUNR = 1.
<OICQ9_WRK>-ZAEHK = 1.

ENDLOOP.

LOOP AT IT_OICQ9_WRK INTO WA_OICQ9_WRK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OICQ9_WRK-FORTRMTYP, sy-vline,
  WA_OICQ9_WRK-PFIND, sy-vline,
  WA_OICQ9_WRK-FORTRMITM, sy-vline,
  WA_OICQ9_WRK-MULT1, sy-vline,
  WA_OICQ9_WRK-MULT2, sy-vline,
  WA_OICQ9_WRK-QUOSRC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OICQ9_WRK 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_OICQ9_WRK 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_OICQ9_WRK INTO WA_OICQ9_WRK.


*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 SURUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OICQ9_WRK-SURUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OICQ9_WRK-SURUOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field REFUOM1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OICQ9_WRK-REFUOM1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OICQ9_WRK-REFUOM1.
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_OICQ9_WRK_STR, 
MANDT TYPE STRING,
KNUMV TYPE STRING,
KPOSN TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
FORTRMTYP TYPE STRING,
PFIND TYPE STRING,
FORTRMITM TYPE STRING,
MULT1 TYPE STRING,
MULT2 TYPE STRING,
QUOSRC TYPE STRING,
QUOTYP TYPE STRING,
QUOTNO TYPE STRING,
TRMEXIT TYPE STRING,
EXGRTTY TYPE STRING,
SURCHARGE TYPE STRING,
SURCURR TYPE STRING,
SURPRUN TYPE STRING,
SURUOM TYPE STRING,
ITEMVAL TYPE STRING,
ITEMCURR TYPE STRING,
QUOTVAL TYPE STRING,
SURVAL TYPE STRING,
OIGNSTRAQ TYPE STRING,
OIGNSTRAS TYPE STRING,
RNDQUOT TYPE STRING,
RNDSUR TYPE STRING,
RNDITEM TYPE STRING,
CALCTYP TYPE STRING,
REFVAL1 TYPE STRING,
REFUOM1 TYPE STRING,
_DATAAGING TYPE STRING,
UPDKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OICQ9_WRK_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_OICQ9_WRK_STR-MANDT sy-vline 
WA_OICQ9_WRK_STR-KNUMV sy-vline 
WA_OICQ9_WRK_STR-KPOSN sy-vline 
WA_OICQ9_WRK_STR-STUNR sy-vline 
WA_OICQ9_WRK_STR-ZAEHK sy-vline 
WA_OICQ9_WRK_STR-FORTRMTYP sy-vline 
WA_OICQ9_WRK_STR-PFIND sy-vline 
WA_OICQ9_WRK_STR-FORTRMITM sy-vline 
WA_OICQ9_WRK_STR-MULT1 sy-vline 
WA_OICQ9_WRK_STR-MULT2 sy-vline 
WA_OICQ9_WRK_STR-QUOSRC sy-vline 
WA_OICQ9_WRK_STR-QUOTYP sy-vline 
WA_OICQ9_WRK_STR-QUOTNO sy-vline 
WA_OICQ9_WRK_STR-TRMEXIT sy-vline 
WA_OICQ9_WRK_STR-EXGRTTY sy-vline 
WA_OICQ9_WRK_STR-SURCHARGE sy-vline 
WA_OICQ9_WRK_STR-SURCURR sy-vline 
WA_OICQ9_WRK_STR-SURPRUN sy-vline 
WA_OICQ9_WRK_STR-SURUOM sy-vline 
WA_OICQ9_WRK_STR-ITEMVAL sy-vline 
WA_OICQ9_WRK_STR-ITEMCURR sy-vline 
WA_OICQ9_WRK_STR-QUOTVAL sy-vline 
WA_OICQ9_WRK_STR-SURVAL sy-vline 
WA_OICQ9_WRK_STR-OIGNSTRAQ sy-vline 
WA_OICQ9_WRK_STR-OIGNSTRAS sy-vline 
WA_OICQ9_WRK_STR-RNDQUOT sy-vline 
WA_OICQ9_WRK_STR-RNDSUR sy-vline 
WA_OICQ9_WRK_STR-RNDITEM sy-vline 
WA_OICQ9_WRK_STR-CALCTYP sy-vline 
WA_OICQ9_WRK_STR-REFVAL1 sy-vline 
WA_OICQ9_WRK_STR-REFUOM1 sy-vline 
WA_OICQ9_WRK_STR-_DATAAGING sy-vline 
WA_OICQ9_WRK_STR-UPDKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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