ABAP Select data from SAP table MASSEKKOCONTRACT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MASSEKKOCONTRACT 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 MASSEKKOCONTRACT.

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 MASSEKKOCONTRACT 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_MASSEKKOCONTRACT TYPE STANDARD TABLE OF MASSEKKOCONTRACT,
      WA_MASSEKKOCONTRACT TYPE MASSEKKOCONTRACT,
      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: <MASSEKKOCONTRACT> TYPE MASSEKKOCONTRACT.


*Original SAP ECC Select statement 
SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MASSEKKOCONTRACT
  INTO TABLE IT_MASSEKKOCONTRACT.

*Select data and declare internal table using  in-line method @DATA 
SELECT *
  FROM MASSEKKOCONTRACT
  INTO TABLE @DATA(IT_MASSEKKOCONTRACT2).

*You can also declare the header/work area using the  in-line DATA declaration method 
READ TABLE IT_MASSEKKOCONTRACT INDEX 1 INTO DATA(WA_MASSEKKOCONTRACT2).


*Latest ABAP cloud SELECT statement using the FIELDS syntax. But note to following the clean core principles you should not select directly from an SAP table 
* and should instead use a CDS view or create you own CDS and use that.
SELECT FROM MASSEKKOCONTRACT
  FIELDS *
*  WHERE would go here
  INTO TABLE @DATA(IT_MASSEKKOCONTRACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MASSEKKOCONTRACT>-MANDT = 1.
<MASSEKKOCONTRACT>-EBELN = 1.
<MASSEKKOCONTRACT>-BUKRS = 1.
<MASSEKKOCONTRACT>-BSART = 1.
<MASSEKKOCONTRACT>-BSAKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MASSEKKOCONTRACT-LOEKZ, sy-vline,
  WA_MASSEKKOCONTRACT-STATU, sy-vline,
  WA_MASSEKKOCONTRACT-AEDAT, sy-vline,
  WA_MASSEKKOCONTRACT-ERNAM, sy-vline,
  WA_MASSEKKOCONTRACT-LASTCHANGEDATETIME, sy-vline,
  WA_MASSEKKOCONTRACT-PINCR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MASSEKKOCONTRACT 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_MASSEKKOCONTRACT 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_MASSEKKOCONTRACT INTO WA_MASSEKKOCONTRACT.


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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field WKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-WKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-WKURS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUSNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-AUSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-AUSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LLIEF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-LLIEF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-LLIEF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACTIVE_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-ACTIVE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-ACTIVE_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-KONNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-KONNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LBLIF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-LBLIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-LBLIF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STAFO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-STAFO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-STAFO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-LIFRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-LIFRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-LOGSY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-LOGSY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-ADDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-ADDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REVNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-REVNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-REVNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MSR_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-MSR_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-MSR_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARENT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-PARENT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-PARENT_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HANDOVERLOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-HANDOVERLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-HANDOVERLOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ID004, internal->external for field INCO2_KEY
CALL FUNCTION 'CONVERSION_EXIT_ID004_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-INCO2_KEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-INCO2_KEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ID004, internal->external for field INCO3_KEY
CALL FUNCTION 'CONVERSION_EXIT_ID004_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-INCO3_KEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-INCO3_KEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ID004, internal->external for field INCO4_KEY
CALL FUNCTION 'CONVERSION_EXIT_ID004_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-INCO4_KEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-INCO4_KEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SOURCE_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-SOURCE_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-SOURCE_LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PFM_CONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_MASSEKKOCONTRACT-PFM_CONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MASSEKKOCONTRACT-PFM_CONTRACT.
WRITE:/ 'New Value:', ld_input.
ENDFORM.