ABAP Select data from SAP table ENT4371 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT4371 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 ENT4371. 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 ENT4371 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_ENT4371 TYPE STANDARD TABLE OF ENT4371,
      WA_ENT4371 TYPE ENT4371,
      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: <ENT4371> TYPE ENT4371.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT4371.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT4371
  INTO TABLE IT_ENT4371.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT4371
*  INTO TABLE @DATA(IT_ENT43712).
*--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_ENT4371 INDEX 1 INTO DATA(WA_ENT43712).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT4371 ASSIGNING <ENT4371>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT4371>-MANDT = 1.
<ENT4371>-KOKRS = 1.
<ENT4371>-BELNR = 1.
<ENT4371>-GJAHR = 1.
<ENT4371>-VERSN = 1.

ENDLOOP.

LOOP AT IT_ENT4371 INTO WA_ENT4371.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT4371-VRGNG, sy-vline,
  WA_ENT4371-PERAB, sy-vline,
  WA_ENT4371-PERBI, sy-vline,
  WA_ENT4371-BLDAT, sy-vline,
  WA_ENT4371-BUDAT, sy-vline,
  WA_ENT4371-CPUDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT4371 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_ENT4371 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_ENT4371 INTO WA_ENT4371.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4371-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4371-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ENT4371-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4371-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4371-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4371-VERSN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFBN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT4371-REFBN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4371-REFBN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field REFGJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ENT4371-REFGJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT4371-REFGJ.
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_ENT4371_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
VERSN TYPE STRING,
VRGNG TYPE STRING,
PERAB TYPE STRING,
PERBI TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
CPUDT TYPE STRING,
USNAM TYPE STRING,
BLTXT TYPE STRING,
STFLG TYPE STRING,
STOKZ TYPE STRING,
REFBT TYPE STRING,
REFBN TYPE STRING,
REFBK TYPE STRING,
REFGJ TYPE STRING,
BLART TYPE STRING,
ORGVG TYPE STRING,
SUMBZ TYPE STRING,
DELBZ TYPE STRING,
WSDAT TYPE STRING,
KURST TYPE STRING,
VARNR TYPE STRING,
KWAER TYPE STRING,
CTYP1 TYPE STRING,
CTYP2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT4371_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_ENT4371_STR-MANDT sy-vline 
WA_ENT4371_STR-KOKRS sy-vline 
WA_ENT4371_STR-BELNR sy-vline 
WA_ENT4371_STR-GJAHR sy-vline 
WA_ENT4371_STR-VERSN sy-vline 
WA_ENT4371_STR-VRGNG sy-vline 
WA_ENT4371_STR-PERAB sy-vline 
WA_ENT4371_STR-PERBI sy-vline 
WA_ENT4371_STR-BLDAT sy-vline 
WA_ENT4371_STR-BUDAT sy-vline 
WA_ENT4371_STR-CPUDT sy-vline 
WA_ENT4371_STR-USNAM sy-vline 
WA_ENT4371_STR-BLTXT sy-vline 
WA_ENT4371_STR-STFLG sy-vline 
WA_ENT4371_STR-STOKZ sy-vline 
WA_ENT4371_STR-REFBT sy-vline 
WA_ENT4371_STR-REFBN sy-vline 
WA_ENT4371_STR-REFBK sy-vline 
WA_ENT4371_STR-REFGJ sy-vline 
WA_ENT4371_STR-BLART sy-vline 
WA_ENT4371_STR-ORGVG sy-vline 
WA_ENT4371_STR-SUMBZ sy-vline 
WA_ENT4371_STR-DELBZ sy-vline 
WA_ENT4371_STR-WSDAT sy-vline 
WA_ENT4371_STR-KURST sy-vline 
WA_ENT4371_STR-VARNR sy-vline 
WA_ENT4371_STR-KWAER sy-vline 
WA_ENT4371_STR-CTYP1 sy-vline 
WA_ENT4371_STR-CTYP2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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