ABAP Select data from SAP table ENT2237 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT2237 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 ENT2237. 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 ENT2237 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_ENT2237 TYPE STANDARD TABLE OF ENT2237,
      WA_ENT2237 TYPE ENT2237,
      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: <ENT2237> TYPE ENT2237.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT2237.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT2237
  INTO TABLE IT_ENT2237.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT2237
*  INTO TABLE @DATA(IT_ENT22372).
*--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_ENT2237 INDEX 1 INTO DATA(WA_ENT22372).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT2237 ASSIGNING <ENT2237>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT2237>-MANDT = 1.
<ENT2237>-BUKRS = 1.
<ENT2237>-BELNR = 1.
<ENT2237>-GJAHR = 1.
<ENT2237>-BUZEI = 1.

ENDLOOP.

LOOP AT IT_ENT2237 INTO WA_ENT2237.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT2237-BSCHL, sy-vline,
  WA_ENT2237-KOART, sy-vline,
  WA_ENT2237-SHKZG, sy-vline,
  WA_ENT2237-DMBTR, sy-vline,
  WA_ENT2237-WRBTR, sy-vline,
  WA_ENT2237-KZBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT2237 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_ENT2237 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_ENT2237 INTO WA_ENT2237.


*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_ENT2237-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2237-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ENT2237-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2237-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ENT2237-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2237-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ENT2237-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2237-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field KZBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ENT2237-KZBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2237-KZBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field PSWBT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ENT2237-PSWBT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2237-PSWBT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT2237-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2237-SAKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT2237-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2237-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_ENT2237-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT2237-FIPOS.
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_ENT2237_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
BSCHL TYPE STRING,
KOART TYPE STRING,
SHKZG TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
KZBTR TYPE STRING,
PSWBT TYPE STRING,
PSWSL TYPE STRING,
SGTXT TYPE STRING,
XHRES TYPE STRING,
XKRES TYPE STRING,
XPANZ TYPE STRING,
XAUTO TYPE STRING,
XNCOP TYPE STRING,
SAKNR TYPE STRING,
HKONT TYPE STRING,
REWRT TYPE STRING,
FIPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT2237_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_ENT2237_STR-MANDT sy-vline 
WA_ENT2237_STR-BUKRS sy-vline 
WA_ENT2237_STR-BELNR sy-vline 
WA_ENT2237_STR-GJAHR sy-vline 
WA_ENT2237_STR-BUZEI sy-vline 
WA_ENT2237_STR-BSCHL sy-vline 
WA_ENT2237_STR-KOART sy-vline 
WA_ENT2237_STR-SHKZG sy-vline 
WA_ENT2237_STR-DMBTR sy-vline 
WA_ENT2237_STR-WRBTR sy-vline 
WA_ENT2237_STR-KZBTR sy-vline 
WA_ENT2237_STR-PSWBT sy-vline 
WA_ENT2237_STR-PSWSL sy-vline 
WA_ENT2237_STR-SGTXT sy-vline 
WA_ENT2237_STR-XHRES sy-vline 
WA_ENT2237_STR-XKRES sy-vline 
WA_ENT2237_STR-XPANZ sy-vline 
WA_ENT2237_STR-XAUTO sy-vline 
WA_ENT2237_STR-XNCOP sy-vline 
WA_ENT2237_STR-SAKNR sy-vline 
WA_ENT2237_STR-HKONT sy-vline 
WA_ENT2237_STR-REWRT sy-vline 
WA_ENT2237_STR-FIPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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