ABAP Select data from SAP table ENT5823 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT5823 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 ENT5823. 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 ENT5823 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_ENT5823 TYPE STANDARD TABLE OF ENT5823,
      WA_ENT5823 TYPE ENT5823,
      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: <ENT5823> TYPE ENT5823.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT5823.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT5823
  INTO TABLE IT_ENT5823.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT5823
*  INTO TABLE @DATA(IT_ENT58232).
*--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_ENT5823 INDEX 1 INTO DATA(WA_ENT58232).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT5823 ASSIGNING <ENT5823>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT5823>-MANDT = 1.
<ENT5823>-RUECK = 1.
<ENT5823>-RMZHL = 1.
<ENT5823>-ERSDA = 1.
<ENT5823>-ERNAM = 1.

ENDLOOP.

LOOP AT IT_ENT5823 INTO WA_ENT5823.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT5823-LAEDA, sy-vline,
  WA_ENT5823-AENAM, sy-vline,
  WA_ENT5823-BUDAT, sy-vline,
  WA_ENT5823-AUERU, sy-vline,
  WA_ENT5823-AUFPL, sy-vline,
  WA_ENT5823-APLZL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT5823 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_ENT5823 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_ENT5823 INTO WA_ENT5823.


*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 APLFL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5823-APLFL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5823-APLFL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_ENT5823-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5823-VORNR.
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_ENT5823_STR, 
MANDT TYPE STRING,
RUECK TYPE STRING,
RMZHL TYPE STRING,
ERSDA TYPE STRING,
ERNAM TYPE STRING,
LAEDA TYPE STRING,
AENAM TYPE STRING,
BUDAT TYPE STRING,
AUERU TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
APLFL TYPE STRING,
VORNR TYPE STRING,
LEARR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT5823_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_ENT5823_STR-MANDT sy-vline 
WA_ENT5823_STR-RUECK sy-vline 
WA_ENT5823_STR-RMZHL sy-vline 
WA_ENT5823_STR-ERSDA sy-vline 
WA_ENT5823_STR-ERNAM sy-vline 
WA_ENT5823_STR-LAEDA sy-vline 
WA_ENT5823_STR-AENAM sy-vline 
WA_ENT5823_STR-BUDAT sy-vline 
WA_ENT5823_STR-AUERU sy-vline 
WA_ENT5823_STR-AUFPL sy-vline 
WA_ENT5823_STR-APLZL sy-vline 
WA_ENT5823_STR-APLFL sy-vline 
WA_ENT5823_STR-VORNR sy-vline 
WA_ENT5823_STR-LEARR sy-vline      INTO ld_text SEPARATED BY SPACE.

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