ABAP Select data from SAP table OIJ_EL_CP_PROD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJ_EL_CP_PROD
*  INTO TABLE @DATA(IT_OIJ_EL_CP_PROD2).
*--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_OIJ_EL_CP_PROD INDEX 1 INTO DATA(WA_OIJ_EL_CP_PROD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJ_EL_CP_PROD>-MANDT = 1.
<OIJ_EL_CP_PROD>-VBELN = 1.
<OIJ_EL_CP_PROD>-VBTYP = 1.
<OIJ_EL_CP_PROD>-POSNR = 1.
<OIJ_EL_CP_PROD>-SEQNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJ_EL_CP_PROD-PRODUCT, sy-vline,
  WA_OIJ_EL_CP_PROD-PROD_GR, sy-vline,
  WA_OIJ_EL_CP_PROD-EXCLUDE, sy-vline,
  WA_OIJ_EL_CP_PROD-ERDAT, sy-vline,
  WA_OIJ_EL_CP_PROD-ERZEIT, sy-vline,
  WA_OIJ_EL_CP_PROD-ERNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJ_EL_CP_PROD 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_OIJ_EL_CP_PROD 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_OIJ_EL_CP_PROD INTO WA_OIJ_EL_CP_PROD.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJ_EL_CP_PROD-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ_EL_CP_PROD-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OIJ_EL_CP_PROD-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ_EL_CP_PROD-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROD_GR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJ_EL_CP_PROD-PROD_GR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ_EL_CP_PROD-PROD_GR.
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_OIJ_EL_CP_PROD_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
VBTYP TYPE STRING,
POSNR TYPE STRING,
SEQNR TYPE STRING,
PRODUCT TYPE STRING,
PROD_GR TYPE STRING,
EXCLUDE TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
AENAM TYPE STRING,
BLOIND TYPE STRING,
DELIND TYPE STRING,
TKTSELECT TYPE STRING,
_DATAAGING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJ_EL_CP_PROD_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_OIJ_EL_CP_PROD_STR-MANDT sy-vline 
WA_OIJ_EL_CP_PROD_STR-VBELN sy-vline 
WA_OIJ_EL_CP_PROD_STR-VBTYP sy-vline 
WA_OIJ_EL_CP_PROD_STR-POSNR sy-vline 
WA_OIJ_EL_CP_PROD_STR-SEQNR sy-vline 
WA_OIJ_EL_CP_PROD_STR-PRODUCT sy-vline 
WA_OIJ_EL_CP_PROD_STR-PROD_GR sy-vline 
WA_OIJ_EL_CP_PROD_STR-EXCLUDE sy-vline 
WA_OIJ_EL_CP_PROD_STR-ERDAT sy-vline 
WA_OIJ_EL_CP_PROD_STR-ERZEIT sy-vline 
WA_OIJ_EL_CP_PROD_STR-ERNAM sy-vline 
WA_OIJ_EL_CP_PROD_STR-AEDAT sy-vline 
WA_OIJ_EL_CP_PROD_STR-AEZEIT sy-vline 
WA_OIJ_EL_CP_PROD_STR-AENAM sy-vline 
WA_OIJ_EL_CP_PROD_STR-BLOIND sy-vline 
WA_OIJ_EL_CP_PROD_STR-DELIND sy-vline 
WA_OIJ_EL_CP_PROD_STR-TKTSELECT sy-vline 
WA_OIJ_EL_CP_PROD_STR-_DATAAGING sy-vline      INTO ld_text SEPARATED BY SPACE.

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