ABAP Select data from SAP table OCIITM_S_PROPOSAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OCIITM_S_PROPOSAL
*  INTO TABLE @DATA(IT_OCIITM_S_PROPOSAL2).
*--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_OCIITM_S_PROPOSAL INDEX 1 INTO DATA(WA_OCIITM_S_PROPOSAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OCIITM_S_PROPOSAL>-CATALOG_RECOMMENDATION = 1.
<OCIITM_S_PROPOSAL>-EBELN = 1.
<OCIITM_S_PROPOSAL>-EBELP = 1.
<OCIITM_S_PROPOSAL>-IDNLF = 1.
<OCIITM_S_PROPOSAL>-LIFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OCIITM_S_PROPOSAL-MATKL, sy-vline,
  WA_OCIITM_S_PROPOSAL-MEINS, sy-vline,
  WA_OCIITM_S_PROPOSAL-ML_ID, sy-vline,
  WA_OCIITM_S_PROPOSAL-NETPR_IN_USD, sy-vline,
  WA_OCIITM_S_PROPOSAL-PLIFZ, sy-vline,
  WA_OCIITM_S_PROPOSAL-TXZ01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OCIITM_S_PROPOSAL 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_OCIITM_S_PROPOSAL 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_OCIITM_S_PROPOSAL INTO WA_OCIITM_S_PROPOSAL.


*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_OCIITM_S_PROPOSAL_STR, 
CATALOG_RECOMMENDATION TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
IDNLF TYPE STRING,
LIFNR TYPE STRING,
MATKL TYPE STRING,
MEINS TYPE STRING,
ML_ID TYPE STRING,
NETPR_IN_USD TYPE STRING,
PLIFZ TYPE STRING,
TXZ01 TYPE STRING,
PROPOSED_SUPPLIER TYPE STRING,
LOWER_NODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OCIITM_S_PROPOSAL_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_OCIITM_S_PROPOSAL_STR-CATALOG_RECOMMENDATION sy-vline 
WA_OCIITM_S_PROPOSAL_STR-EBELN sy-vline 
WA_OCIITM_S_PROPOSAL_STR-EBELP sy-vline 
WA_OCIITM_S_PROPOSAL_STR-IDNLF sy-vline 
WA_OCIITM_S_PROPOSAL_STR-LIFNR sy-vline 
WA_OCIITM_S_PROPOSAL_STR-MATKL sy-vline 
WA_OCIITM_S_PROPOSAL_STR-MEINS sy-vline 
WA_OCIITM_S_PROPOSAL_STR-ML_ID sy-vline 
WA_OCIITM_S_PROPOSAL_STR-NETPR_IN_USD sy-vline 
WA_OCIITM_S_PROPOSAL_STR-PLIFZ sy-vline 
WA_OCIITM_S_PROPOSAL_STR-TXZ01 sy-vline 
WA_OCIITM_S_PROPOSAL_STR-PROPOSED_SUPPLIER sy-vline 
WA_OCIITM_S_PROPOSAL_STR-LOWER_NODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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