ABAP Select data from SAP table EMMA_PROCESS_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EMMA_PROCESS_DATA
*  INTO TABLE @DATA(IT_EMMA_PROCESS_DATA2).
*--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_EMMA_PROCESS_DATA INDEX 1 INTO DATA(WA_EMMA_PROCESS_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EMMA_PROCESS_DATA>-BPGUID_C = 1.
<EMMA_PROCESS_DATA>-CONSNO = 1.
<EMMA_PROCESS_DATA>-LOGHANDLE = 1.
<EMMA_PROCESS_DATA>-BPAREA = 1.
<EMMA_PROCESS_DATA>-BPCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EMMA_PROCESS_DATA-TCODE, sy-vline,
  WA_EMMA_PROCESS_DATA-PROCOBJ, sy-vline,
  WA_EMMA_PROCESS_DATA-REFOBJTYPE, sy-vline,
  WA_EMMA_PROCESS_DATA-REFSTRUCT, sy-vline,
  WA_EMMA_PROCESS_DATA-REFFIELD, sy-vline,
  WA_EMMA_PROCESS_DATA-ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EMMA_PROCESS_DATA 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_EMMA_PROCESS_DATA 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_EMMA_PROCESS_DATA INTO WA_EMMA_PROCESS_DATA.


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

*Conversion exit ALPHA, internal->external for field BPCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EMMA_PROCESS_DATA-BPCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EMMA_PROCESS_DATA-BPCODE.
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_EMMA_PROCESS_DATA_STR, 
BPGUID_C TYPE STRING,
CONSNO TYPE STRING,
LOGHANDLE TYPE STRING,
BPAREA TYPE STRING,
BPCODE TYPE STRING,
TCODE TYPE STRING,
PROCOBJ TYPE STRING,
REFOBJTYPE TYPE STRING,
REFSTRUCT TYPE STRING,
REFFIELD TYPE STRING,
ID TYPE STRING,
MAINPROC TYPE STRING,
STARTMSGNR TYPE STRING,
LOG_OPENED TYPE STRING,
WKSP_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EMMA_PROCESS_DATA_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_EMMA_PROCESS_DATA_STR-BPGUID_C sy-vline 
WA_EMMA_PROCESS_DATA_STR-CONSNO sy-vline 
WA_EMMA_PROCESS_DATA_STR-LOGHANDLE sy-vline 
WA_EMMA_PROCESS_DATA_STR-BPAREA sy-vline 
WA_EMMA_PROCESS_DATA_STR-BPCODE sy-vline 
WA_EMMA_PROCESS_DATA_STR-TCODE sy-vline 
WA_EMMA_PROCESS_DATA_STR-PROCOBJ sy-vline 
WA_EMMA_PROCESS_DATA_STR-REFOBJTYPE sy-vline 
WA_EMMA_PROCESS_DATA_STR-REFSTRUCT sy-vline 
WA_EMMA_PROCESS_DATA_STR-REFFIELD sy-vline 
WA_EMMA_PROCESS_DATA_STR-ID sy-vline 
WA_EMMA_PROCESS_DATA_STR-MAINPROC sy-vline 
WA_EMMA_PROCESS_DATA_STR-STARTMSGNR sy-vline 
WA_EMMA_PROCESS_DATA_STR-LOG_OPENED sy-vline 
WA_EMMA_PROCESS_DATA_STR-WKSP_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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