ABAP Select data from SAP table ENT7300 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT7300 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 ENT7300. 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 ENT7300 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_ENT7300 TYPE STANDARD TABLE OF ENT7300,
      WA_ENT7300 TYPE ENT7300,
      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: <ENT7300> TYPE ENT7300.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT7300.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT7300
  INTO TABLE IT_ENT7300.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT7300
*  INTO TABLE @DATA(IT_ENT73002).
*--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_ENT7300 INDEX 1 INTO DATA(WA_ENT73002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT7300 ASSIGNING <ENT7300>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT7300>-MANDT = 1.
<ENT7300>-ZEITY = 1.
<ENT7300>-MOFID = 1.
<ENT7300>-MOSID = 1.
<ENT7300>-SCHKZ = 1.

ENDLOOP.

LOOP AT IT_ENT7300 INTO WA_ENT7300.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT7300-ENDDA, sy-vline,
  WA_ENT7300-BEGDA, sy-vline,
  WA_ENT7300-KUGKZ, sy-vline,
  WA_ENT7300-SCHZU, sy-vline,
  WA_ENT7300-ZMODN, sy-vline,
  WA_ENT7300-KUGKN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT7300 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_ENT7300 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_ENT7300 INTO WA_ENT7300.


*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_ENT7300_STR, 
MANDT TYPE STRING,
ZEITY TYPE STRING,
MOFID TYPE STRING,
MOSID TYPE STRING,
SCHKZ TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
KUGKZ TYPE STRING,
SCHZU TYPE STRING,
ZMODN TYPE STRING,
KUGKN TYPE STRING,
BZPKT TYPE STRING,
OFFBZ TYPE STRING,
MOTTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT7300_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_ENT7300_STR-MANDT sy-vline 
WA_ENT7300_STR-ZEITY sy-vline 
WA_ENT7300_STR-MOFID sy-vline 
WA_ENT7300_STR-MOSID sy-vline 
WA_ENT7300_STR-SCHKZ sy-vline 
WA_ENT7300_STR-ENDDA sy-vline 
WA_ENT7300_STR-BEGDA sy-vline 
WA_ENT7300_STR-KUGKZ sy-vline 
WA_ENT7300_STR-SCHZU sy-vline 
WA_ENT7300_STR-ZMODN sy-vline 
WA_ENT7300_STR-KUGKN sy-vline 
WA_ENT7300_STR-BZPKT sy-vline 
WA_ENT7300_STR-OFFBZ sy-vline 
WA_ENT7300_STR-MOTTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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