ABAP Select data from SAP table T7BGG7 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7BGG7 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 T7BGG7. 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 T7BGG7 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_T7BGG7 TYPE STANDARD TABLE OF T7BGG7,
      WA_T7BGG7 TYPE T7BGG7,
      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: <T7BGG7> TYPE T7BGG7.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7BGG7.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7BGG7
  INTO TABLE IT_T7BGG7.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7BGG7
*  INTO TABLE @DATA(IT_T7BGG72).
*--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_T7BGG7 INDEX 1 INTO DATA(WA_T7BGG72).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7BGG7 ASSIGNING <T7BGG7>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7BGG7>-MANDT = 1.
<T7BGG7>-LAUFD = 1.
<T7BGG7>-LAUFI = 1.
<T7BGG7>-BSTAT = 1.
<T7BGG7>-NSSI_RO = 1.

ENDLOOP.

LOOP AT IT_T7BGG7 INTO WA_T7BGG7.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7BGG7-PERNR, sy-vline,
  WA_T7BGG7-SUBTY, sy-vline,
  WA_T7BGG7-REQDA, sy-vline,
  WA_T7BGG7-CHILDNUMBER, sy-vline,
  WA_T7BGG7-XML_VERSION, sy-vline,
  WA_T7BGG7-CHILDNUMBERINFAMILY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7BGG7 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_T7BGG7 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_T7BGG7 INTO WA_T7BGG7.


*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_T7BGG7_STR, 
MANDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
BSTAT TYPE STRING,
NSSI_RO TYPE STRING,
PERNR TYPE STRING,
SUBTY TYPE STRING,
REQDA TYPE STRING,
CHILDNUMBER TYPE STRING,
XML_VERSION TYPE STRING,
CHILDNUMBERINFAMILY TYPE STRING,
CHILDFIRSTNAME TYPE STRING,
CHILDSURNAME TYPE STRING,
CHILDFAMILYNAME TYPE STRING,
CHILDBIRTHDATE TYPE STRING,
CHILDEGN TYPE STRING,
CHILDFLAGEGN TYPE STRING,
CHILDBIRTHDOCNUMBER TYPE STRING,
CHILDBIRTHDOCDATE TYPE STRING,
MOTHERFIRSTNAME TYPE STRING,
MOTHERSURNAME TYPE STRING,
MOTHERFAMILYNAME TYPE STRING,
MOTHEREGN TYPE STRING,
MOTHERFLAGEGN TYPE STRING,
FATHERFIRSTNAME TYPE STRING,
FATHERSURNAME TYPE STRING,
FATHERFAMILYNAME TYPE STRING,
FATHEREGN TYPE STRING,
FATHERFLAGEGN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7BGG7_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_T7BGG7_STR-MANDT sy-vline 
WA_T7BGG7_STR-LAUFD sy-vline 
WA_T7BGG7_STR-LAUFI sy-vline 
WA_T7BGG7_STR-BSTAT sy-vline 
WA_T7BGG7_STR-NSSI_RO sy-vline 
WA_T7BGG7_STR-PERNR sy-vline 
WA_T7BGG7_STR-SUBTY sy-vline 
WA_T7BGG7_STR-REQDA sy-vline 
WA_T7BGG7_STR-CHILDNUMBER sy-vline 
WA_T7BGG7_STR-XML_VERSION sy-vline 
WA_T7BGG7_STR-CHILDNUMBERINFAMILY sy-vline 
WA_T7BGG7_STR-CHILDFIRSTNAME sy-vline 
WA_T7BGG7_STR-CHILDSURNAME sy-vline 
WA_T7BGG7_STR-CHILDFAMILYNAME sy-vline 
WA_T7BGG7_STR-CHILDBIRTHDATE sy-vline 
WA_T7BGG7_STR-CHILDEGN sy-vline 
WA_T7BGG7_STR-CHILDFLAGEGN sy-vline 
WA_T7BGG7_STR-CHILDBIRTHDOCNUMBER sy-vline 
WA_T7BGG7_STR-CHILDBIRTHDOCDATE sy-vline 
WA_T7BGG7_STR-MOTHERFIRSTNAME sy-vline 
WA_T7BGG7_STR-MOTHERSURNAME sy-vline 
WA_T7BGG7_STR-MOTHERFAMILYNAME sy-vline 
WA_T7BGG7_STR-MOTHEREGN sy-vline 
WA_T7BGG7_STR-MOTHERFLAGEGN sy-vline 
WA_T7BGG7_STR-FATHERFIRSTNAME sy-vline 
WA_T7BGG7_STR-FATHERSURNAME sy-vline 
WA_T7BGG7_STR-FATHERFAMILYNAME sy-vline 
WA_T7BGG7_STR-FATHEREGN sy-vline 
WA_T7BGG7_STR-FATHERFLAGEGN sy-vline      INTO ld_text SEPARATED BY SPACE.

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