ABAP Select data from SAP table ENT7441 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT7441 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 ENT7441. 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 ENT7441 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_ENT7441 TYPE STANDARD TABLE OF ENT7441,
      WA_ENT7441 TYPE ENT7441,
      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: <ENT7441> TYPE ENT7441.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT7441.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT7441
  INTO TABLE IT_ENT7441.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT7441
*  INTO TABLE @DATA(IT_ENT74412).
*--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_ENT7441 INDEX 1 INTO DATA(WA_ENT74412).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT7441 ASSIGNING <ENT7441>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT7441>-MANDT = 1.
<ENT7441>-MOLGA = 1.
<ENT7441>-ORGMO = 1.
<ENT7441>-DAYMO = 1.
<ENT7441>-ENDDA = 1.

ENDLOOP.

LOOP AT IT_ENT7441 INTO WA_ENT7441.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT7441-SEQNO, sy-vline,
  WA_ENT7441-BEGDA, sy-vline,
  WA_ENT7441-VATYP, sy-vline,
  WA_ENT7441-VAWDY, sy-vline,
  WA_ENT7441-VAHDD, sy-vline,
  WA_ENT7441-VAHDB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT7441 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_ENT7441 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_ENT7441 INTO WA_ENT7441.


*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_ENT7441_STR, 
MANDT TYPE STRING,
MOLGA TYPE STRING,
ORGMO TYPE STRING,
DAYMO TYPE STRING,
ENDDA TYPE STRING,
SEQNO TYPE STRING,
BEGDA TYPE STRING,
VATYP TYPE STRING,
VAWDY TYPE STRING,
VAHDD TYPE STRING,
VAHDB TYPE STRING,
VAHDA TYPE STRING,
VATMC TYPE STRING,
VADPC TYPE STRING,
VATTY TYPE STRING,
BEGTM TYPE STRING,
ENDTM TYPE STRING,
HRSLO TYPE STRING,
HRSLS TYPE STRING,
HRSHI TYPE STRING,
HRSHS TYPE STRING,
COTYP TYPE STRING,
COINT TYPE STRING,
EXITA TYPE STRING,
EXITR TYPE STRING,
LGMUL TYPE STRING,
LGART TYPE STRING,
INUMB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT7441_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_ENT7441_STR-MANDT sy-vline 
WA_ENT7441_STR-MOLGA sy-vline 
WA_ENT7441_STR-ORGMO sy-vline 
WA_ENT7441_STR-DAYMO sy-vline 
WA_ENT7441_STR-ENDDA sy-vline 
WA_ENT7441_STR-SEQNO sy-vline 
WA_ENT7441_STR-BEGDA sy-vline 
WA_ENT7441_STR-VATYP sy-vline 
WA_ENT7441_STR-VAWDY sy-vline 
WA_ENT7441_STR-VAHDD sy-vline 
WA_ENT7441_STR-VAHDB sy-vline 
WA_ENT7441_STR-VAHDA sy-vline 
WA_ENT7441_STR-VATMC sy-vline 
WA_ENT7441_STR-VADPC sy-vline 
WA_ENT7441_STR-VATTY sy-vline 
WA_ENT7441_STR-BEGTM sy-vline 
WA_ENT7441_STR-ENDTM sy-vline 
WA_ENT7441_STR-HRSLO sy-vline 
WA_ENT7441_STR-HRSLS sy-vline 
WA_ENT7441_STR-HRSHI sy-vline 
WA_ENT7441_STR-HRSHS sy-vline 
WA_ENT7441_STR-COTYP sy-vline 
WA_ENT7441_STR-COINT sy-vline 
WA_ENT7441_STR-EXITA sy-vline 
WA_ENT7441_STR-EXITR sy-vline 
WA_ENT7441_STR-LGMUL sy-vline 
WA_ENT7441_STR-LGART sy-vline 
WA_ENT7441_STR-INUMB sy-vline      INTO ld_text SEPARATED BY SPACE.

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