ABAP Select data from SAP table CRMS_MKTPL_EXKNX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS_MKTPL_EXKNX
*  INTO TABLE @DATA(IT_CRMS_MKTPL_EXKNX2).
*--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_CRMS_MKTPL_EXKNX INDEX 1 INTO DATA(WA_CRMS_MKTPL_EXKNX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS_MKTPL_EXKNX>-PROJECT_GUID = 1.
<CRMS_MKTPL_EXKNX>-PHEAD_ASSIG_GUID = 1.
<CRMS_MKTPL_EXKNX>-PITEM_ASSIG_GUID = 1.
<CRMS_MKTPL_EXKNX>-ZEXKN = 1.
<CRMS_MKTPL_EXKNX>-LOEKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS_MKTPL_EXKNX-AEDAT, sy-vline,
  WA_CRMS_MKTPL_EXKNX-MENGE, sy-vline,
  WA_CRMS_MKTPL_EXKNX-VPROZ, sy-vline,
  WA_CRMS_MKTPL_EXKNX-NETWR, sy-vline,
  WA_CRMS_MKTPL_EXKNX-SAKTO, sy-vline,
  WA_CRMS_MKTPL_EXKNX-GSBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS_MKTPL_EXKNX 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_CRMS_MKTPL_EXKNX 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_CRMS_MKTPL_EXKNX INTO WA_CRMS_MKTPL_EXKNX.


*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_CRMS_MKTPL_EXKNX_STR, 
PROJECT_GUID TYPE STRING,
PHEAD_ASSIG_GUID TYPE STRING,
PITEM_ASSIG_GUID TYPE STRING,
ZEXKN TYPE STRING,
LOEKZ TYPE STRING,
AEDAT TYPE STRING,
MENGE TYPE STRING,
VPROZ TYPE STRING,
NETWR TYPE STRING,
SAKTO TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
VBELN TYPE STRING,
VBELP TYPE STRING,
VETEN TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
AUFNR TYPE STRING,
WEMPF TYPE STRING,
ABLAD TYPE STRING,
KOKRS TYPE STRING,
KSTRG TYPE STRING,
PAOBJNR TYPE STRING,
PRCTR TYPE STRING,
PS_PSP_PNR TYPE STRING,
NPLNR TYPE STRING,
AUFPL TYPE STRING,
IMKEY TYPE STRING,
APLZL TYPE STRING,
VPTNR TYPE STRING,
FIPOS TYPE STRING,
RECID TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
GRANT_NBR TYPE STRING,
FKBER TYPE STRING,
DABRZ TYPE STRING,
AUFPL_ORD TYPE STRING,
APLZL_ORD TYPE STRING,
MWSKZ TYPE STRING,
TXJCD TYPE STRING,
NAVNW TYPE STRING,
LSTAR TYPE STRING,
PRZNR TYPE STRING,
EXTWBSELEMENT TYPE STRING,
SERVICE_DOC_TYPE TYPE STRING,
SERVICE_DOC_ID TYPE STRING,
SERVICE_DOC_ITEM_ID TYPE STRING,
KBLNR TYPE STRING,
KBLPOS TYPE STRING,
VORNR TYPE STRING,
DUMMY TYPE STRING,
BUDGET_PD TYPE STRING,
AA_FINAL_IND TYPE STRING,
AA_FINAL_REASON TYPE STRING,
FMFGUS_KEY TYPE STRING,
KBLNR_CAB TYPE STRING,
KBLPOS_CAB TYPE STRING,
FM_SPLIT_BATCH TYPE STRING,
FM_SPLIT_BEGRU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS_MKTPL_EXKNX_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_CRMS_MKTPL_EXKNX_STR-PROJECT_GUID sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-PHEAD_ASSIG_GUID sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-PITEM_ASSIG_GUID sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-ZEXKN sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-LOEKZ sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-AEDAT sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-MENGE sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-VPROZ sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-NETWR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-SAKTO sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-GSBER sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-KOSTL sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-VBELN sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-VBELP sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-VETEN sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-ANLN1 sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-ANLN2 sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-AUFNR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-WEMPF sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-ABLAD sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-KOKRS sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-KSTRG sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-PAOBJNR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-PRCTR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-PS_PSP_PNR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-NPLNR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-AUFPL sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-IMKEY sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-APLZL sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-VPTNR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-FIPOS sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-RECID sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-FISTL sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-GEBER sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-GRANT_NBR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-FKBER sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-DABRZ sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-AUFPL_ORD sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-APLZL_ORD sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-MWSKZ sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-TXJCD sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-NAVNW sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-LSTAR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-PRZNR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-EXTWBSELEMENT sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-SERVICE_DOC_TYPE sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-SERVICE_DOC_ID sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-SERVICE_DOC_ITEM_ID sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-KBLNR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-KBLPOS sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-VORNR sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-DUMMY sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-BUDGET_PD sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-AA_FINAL_IND sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-AA_FINAL_REASON sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-FMFGUS_KEY sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-KBLNR_CAB sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-KBLPOS_CAB sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-FM_SPLIT_BATCH sy-vline 
WA_CRMS_MKTPL_EXKNX_STR-FM_SPLIT_BEGRU sy-vline      INTO ld_text SEPARATED BY SPACE.

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