ABAP Select data from SAP table COCF_S_MEAS_DOC_SEL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COCF_S_MEAS_DOC_SEL
*  INTO TABLE @DATA(IT_COCF_S_MEAS_DOC_SEL2).
*--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_COCF_S_MEAS_DOC_SEL INDEX 1 INTO DATA(WA_COCF_S_MEAS_DOC_SEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COCF_S_MEAS_DOC_SEL>-POINT = 1.
<COCF_S_MEAS_DOC_SEL>-MPOBJ = 1.
<COCF_S_MEAS_DOC_SEL>-PSORT = 1.
<COCF_S_MEAS_DOC_SEL>-LOCAS = 1.
<COCF_S_MEAS_DOC_SEL>-ATINN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COCF_S_MEAS_DOC_SEL-DESIR, sy-vline,
  WA_COCF_S_MEAS_DOC_SEL-DESIRI, sy-vline,
  WA_COCF_S_MEAS_DOC_SEL-MPTYP, sy-vline,
  WA_COCF_S_MEAS_DOC_SEL-MDOCM, sy-vline,
  WA_COCF_S_MEAS_DOC_SEL-IDATE, sy-vline,
  WA_COCF_S_MEAS_DOC_SEL-ITIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COCF_S_MEAS_DOC_SEL 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_COCF_S_MEAS_DOC_SEL 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_COCF_S_MEAS_DOC_SEL INTO WA_COCF_S_MEAS_DOC_SEL.


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

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

*Conversion exit ATINN, internal->external for field ATINN
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_COCF_S_MEAS_DOC_SEL-ATINN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COCF_S_MEAS_DOC_SEL-ATINN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field RECDU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_COCF_S_MEAS_DOC_SEL-RECDU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COCF_S_MEAS_DOC_SEL-RECDU.
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_COCF_S_MEAS_DOC_SEL_STR, 
POINT TYPE STRING,
MPOBJ TYPE STRING,
PSORT TYPE STRING,
LOCAS TYPE STRING,
ATINN TYPE STRING,
DESIR TYPE STRING,
DESIRI TYPE STRING,
MPTYP TYPE STRING,
MDOCM TYPE STRING,
IDATE TYPE STRING,
ITIME TYPE STRING,
MRMIN TYPE STRING,
MRMINI TYPE STRING,
MRMAX TYPE STRING,
MRMAXI TYPE STRING,
CJUMP TYPE STRING,
PYEAR TYPE STRING,
ERNAM TYPE STRING,
READG TYPE STRING,
RECDV TYPE STRING,
RECDU TYPE STRING,
CNTRR TYPE STRING,
CDIFF TYPE STRING,
CDIFFI TYPE STRING,
CODCT TYPE STRING,
CODGR TYPE STRING,
PREST TYPE STRING,
CANCL TYPE STRING,
DIMID TYPE STRING,
INDCT TYPE STRING,
VLCOD TYPE STRING,
DOCAF TYPE STRING,
EXPON TYPE STRING,
DECIM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COCF_S_MEAS_DOC_SEL_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_COCF_S_MEAS_DOC_SEL_STR-POINT sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-MPOBJ sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-PSORT sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-LOCAS sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-ATINN sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-DESIR sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-DESIRI sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-MPTYP sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-MDOCM sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-IDATE sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-ITIME sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-MRMIN sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-MRMINI sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-MRMAX sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-MRMAXI sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-CJUMP sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-PYEAR sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-ERNAM sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-READG sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-RECDV sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-RECDU sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-CNTRR sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-CDIFF sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-CDIFFI sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-CODCT sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-CODGR sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-PREST sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-CANCL sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-DIMID sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-INDCT sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-VLCOD sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-DOCAF sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-EXPON sy-vline 
WA_COCF_S_MEAS_DOC_SEL_STR-DECIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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