ABAP Select data from SAP table ENT5642 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT5642 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 ENT5642. 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 ENT5642 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_ENT5642 TYPE STANDARD TABLE OF ENT5642,
      WA_ENT5642 TYPE ENT5642,
      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: <ENT5642> TYPE ENT5642.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT5642.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT5642
  INTO TABLE IT_ENT5642.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT5642
*  INTO TABLE @DATA(IT_ENT56422).
*--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_ENT5642 INDEX 1 INTO DATA(WA_ENT56422).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT5642 ASSIGNING <ENT5642>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT5642>-MANDT = 1.
<ENT5642>-WARPL = 1.
<ENT5642>-ERKNZ = 1.
<ENT5642>-AEKNZ = 1.
<ENT5642>-ERSDT = 1.

ENDLOOP.

LOOP AT IT_ENT5642 INTO WA_ENT5642.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT5642-ERNAM, sy-vline,
  WA_ENT5642-AEDAT, sy-vline,
  WA_ENT5642-AENAM, sy-vline,
  WA_ENT5642-WPTXT, sy-vline,
  WA_ENT5642-STRAT, sy-vline,
  WA_ENT5642-ABRHO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT5642 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_ENT5642 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_ENT5642 INTO WA_ENT5642.


*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 WARPL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5642-WARPL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5642-WARPL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5642-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5642-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ENT5642-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5642-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5642-KUNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5642-KUNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5642-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5642-LANGU.
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_ENT5642_STR, 
MANDT TYPE STRING,
WARPL TYPE STRING,
ERKNZ TYPE STRING,
AEKNZ TYPE STRING,
ERSDT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
WPTXT TYPE STRING,
STRAT TYPE STRING,
ABRHO TYPE STRING,
EQUNR TYPE STRING,
TPLNR TYPE STRING,
KUNUM TYPE STRING,
LTKNZ TYPE STRING,
LVORM TYPE STRING,
ANZPS TYPE STRING,
ABNUM TYPE STRING,
LANGU TYPE STRING,
VSPOS TYPE STRING,
VSNEG TYPE STRING,
TOPOS TYPE STRING,
TONEG TYPE STRING,
SFAKT TYPE STRING,
STICH TYPE STRING,
TGOON TYPE STRING,
HORIZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT5642_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_ENT5642_STR-MANDT sy-vline 
WA_ENT5642_STR-WARPL sy-vline 
WA_ENT5642_STR-ERKNZ sy-vline 
WA_ENT5642_STR-AEKNZ sy-vline 
WA_ENT5642_STR-ERSDT sy-vline 
WA_ENT5642_STR-ERNAM sy-vline 
WA_ENT5642_STR-AEDAT sy-vline 
WA_ENT5642_STR-AENAM sy-vline 
WA_ENT5642_STR-WPTXT sy-vline 
WA_ENT5642_STR-STRAT sy-vline 
WA_ENT5642_STR-ABRHO sy-vline 
WA_ENT5642_STR-EQUNR sy-vline 
WA_ENT5642_STR-TPLNR sy-vline 
WA_ENT5642_STR-KUNUM sy-vline 
WA_ENT5642_STR-LTKNZ sy-vline 
WA_ENT5642_STR-LVORM sy-vline 
WA_ENT5642_STR-ANZPS sy-vline 
WA_ENT5642_STR-ABNUM sy-vline 
WA_ENT5642_STR-LANGU sy-vline 
WA_ENT5642_STR-VSPOS sy-vline 
WA_ENT5642_STR-VSNEG sy-vline 
WA_ENT5642_STR-TOPOS sy-vline 
WA_ENT5642_STR-TONEG sy-vline 
WA_ENT5642_STR-SFAKT sy-vline 
WA_ENT5642_STR-STICH sy-vline 
WA_ENT5642_STR-TGOON sy-vline 
WA_ENT5642_STR-HORIZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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