ABAP Select data from SAP table EDEX_AGGR_MON into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDEX_AGGR_MON
*  INTO TABLE @DATA(IT_EDEX_AGGR_MON2).
*--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_EDEX_AGGR_MON INDEX 1 INTO DATA(WA_EDEX_AGGR_MON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDEX_AGGR_MON>-DOCNUM = 1.
<EDEX_AGGR_MON>-ICON_DEXTASK = 1.
<EDEX_AGGR_MON>-ICON_WB = 1.
<EDEX_AGGR_MON>-DEXDUEDATE = 1.
<EDEX_AGGR_MON>-DEXPROC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDEX_AGGR_MON-DEXPROCTXT, sy-vline,
  WA_EDEX_AGGR_MON-DEXSERVPROV, sy-vline,
  WA_EDEX_AGGR_MON-DEXSERVPROVTXT, sy-vline,
  WA_EDEX_AGGR_MON-DEXSERVPROVSELF, sy-vline,
  WA_EDEX_AGGR_MON-DEXSERVPROVSELFTXT, sy-vline,
  WA_EDEX_AGGR_MON-NUM_MSG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDEX_AGGR_MON 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_EDEX_AGGR_MON 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_EDEX_AGGR_MON INTO WA_EDEX_AGGR_MON.


*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_EDEX_AGGR_MON_STR, 
DOCNUM TYPE STRING,
ICON_DEXTASK TYPE STRING,
ICON_WB TYPE STRING,
DEXDUEDATE TYPE STRING,
DEXPROC TYPE STRING,
DEXPROCTXT TYPE STRING,
DEXSERVPROV TYPE STRING,
DEXSERVPROVTXT TYPE STRING,
DEXSERVPROVSELF TYPE STRING,
DEXSERVPROVSELFTXT TYPE STRING,
NUM_MSG TYPE STRING,
NUM_SUCCESS_MSG TYPE STRING,
NUM_ERROR_MSG TYPE STRING,
NUM_CORR_MSG TYPE STRING,
NUM_WAIT_MSG TYPE STRING,
NUM_SUCCESS_WB TYPE STRING,
NUM_ERROR_WB TYPE STRING,
NUM_WAIT_WB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDEX_AGGR_MON_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_EDEX_AGGR_MON_STR-DOCNUM sy-vline 
WA_EDEX_AGGR_MON_STR-ICON_DEXTASK sy-vline 
WA_EDEX_AGGR_MON_STR-ICON_WB sy-vline 
WA_EDEX_AGGR_MON_STR-DEXDUEDATE sy-vline 
WA_EDEX_AGGR_MON_STR-DEXPROC sy-vline 
WA_EDEX_AGGR_MON_STR-DEXPROCTXT sy-vline 
WA_EDEX_AGGR_MON_STR-DEXSERVPROV sy-vline 
WA_EDEX_AGGR_MON_STR-DEXSERVPROVTXT sy-vline 
WA_EDEX_AGGR_MON_STR-DEXSERVPROVSELF sy-vline 
WA_EDEX_AGGR_MON_STR-DEXSERVPROVSELFTXT sy-vline 
WA_EDEX_AGGR_MON_STR-NUM_MSG sy-vline 
WA_EDEX_AGGR_MON_STR-NUM_SUCCESS_MSG sy-vline 
WA_EDEX_AGGR_MON_STR-NUM_ERROR_MSG sy-vline 
WA_EDEX_AGGR_MON_STR-NUM_CORR_MSG sy-vline 
WA_EDEX_AGGR_MON_STR-NUM_WAIT_MSG sy-vline 
WA_EDEX_AGGR_MON_STR-NUM_SUCCESS_WB sy-vline 
WA_EDEX_AGGR_MON_STR-NUM_ERROR_WB sy-vline 
WA_EDEX_AGGR_MON_STR-NUM_WAIT_WB sy-vline      INTO ld_text SEPARATED BY SPACE.

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