ABAP Select data from SAP table MMSRCGPNGNQTN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMSRCGPNGNQTN
*  INTO TABLE @DATA(IT_MMSRCGPNGNQTN2).
*--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_MMSRCGPNGNQTN INDEX 1 INTO DATA(WA_MMSRCGPNGNQTN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMSRCGPNGNQTN>-MANDT = 1.
<MMSRCGPNGNQTN>-SRCGPROJNEGTTNQUOTATIONUUID = 1.
<MMSRCGPNGNQTN>-SOURCINGPROJECTNEGOTIATIONUUID = 1.
<MMSRCGPNGNQTN>-SOURCINGPROJECTQUOTATIONUUID = 1.
<MMSRCGPNGNQTN>-SOURCINGPROJECTQUOTATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMSRCGPNGNQTN-SRCGPROJQUOTATIONVERSION, sy-vline,
  WA_MMSRCGPNGNQTN-BIDDER, sy-vline,
  WA_MMSRCGPNGNQTN-SRCGPROJNEGTTNTOTALTARGETAMT, sy-vline,
  WA_MMSRCGPNGNQTN-DOCUMENTCURRENCY, sy-vline,
  WA_MMSRCGPNGNQTN-SPQTNFORNEGTTNLTSTVERSIONUUID, sy-vline,
  WA_MMSRCGPNGNQTN-DUMMY_SPNGNQTN_INCL_EEW_PS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMSRCGPNGNQTN 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_MMSRCGPNGNQTN 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_MMSRCGPNGNQTN INTO WA_MMSRCGPNGNQTN.


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

*Conversion exit ALPHA, internal->external for field BIDDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMSRCGPNGNQTN-BIDDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMSRCGPNGNQTN-BIDDER.
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_MMSRCGPNGNQTN_STR, 
MANDT TYPE STRING,
SRCGPROJNEGTTNQUOTATIONUUID TYPE STRING,
SOURCINGPROJECTNEGOTIATIONUUID TYPE STRING,
SOURCINGPROJECTQUOTATIONUUID TYPE STRING,
SOURCINGPROJECTQUOTATION TYPE STRING,
SRCGPROJQUOTATIONVERSION TYPE STRING,
BIDDER TYPE STRING,
SRCGPROJNEGTTNTOTALTARGETAMT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
SPQTNFORNEGTTNLTSTVERSIONUUID TYPE STRING,
DUMMY_SPNGNQTN_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMSRCGPNGNQTN_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_MMSRCGPNGNQTN_STR-MANDT sy-vline 
WA_MMSRCGPNGNQTN_STR-SRCGPROJNEGTTNQUOTATIONUUID sy-vline 
WA_MMSRCGPNGNQTN_STR-SOURCINGPROJECTNEGOTIATIONUUID sy-vline 
WA_MMSRCGPNGNQTN_STR-SOURCINGPROJECTQUOTATIONUUID sy-vline 
WA_MMSRCGPNGNQTN_STR-SOURCINGPROJECTQUOTATION sy-vline 
WA_MMSRCGPNGNQTN_STR-SRCGPROJQUOTATIONVERSION sy-vline 
WA_MMSRCGPNGNQTN_STR-BIDDER sy-vline 
WA_MMSRCGPNGNQTN_STR-SRCGPROJNEGTTNTOTALTARGETAMT sy-vline 
WA_MMSRCGPNGNQTN_STR-DOCUMENTCURRENCY sy-vline 
WA_MMSRCGPNGNQTN_STR-SPQTNFORNEGTTNLTSTVERSIONUUID sy-vline 
WA_MMSRCGPNGNQTN_STR-DUMMY_SPNGNQTN_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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