ABAP Select data from SAP table V_T7SAPBS79 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T7SAPBS79 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 V_T7SAPBS79. 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 V_T7SAPBS79 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_V_T7SAPBS79 TYPE STANDARD TABLE OF V_T7SAPBS79,
      WA_V_T7SAPBS79 TYPE V_T7SAPBS79,
      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: <V_T7SAPBS79> TYPE V_T7SAPBS79.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T7SAPBS79.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T7SAPBS79
  INTO TABLE IT_V_T7SAPBS79.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T7SAPBS79
*  INTO TABLE @DATA(IT_V_T7SAPBS792).
*--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_V_T7SAPBS79 INDEX 1 INTO DATA(WA_V_T7SAPBS792).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T7SAPBS79 ASSIGNING <V_T7SAPBS79>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T7SAPBS79>-MANDT = 1.
<V_T7SAPBS79>-QGROP = 1.
<V_T7SAPBS79>-OTYPE = 1.
<V_T7SAPBS79>-OBJID = 1.
<V_T7SAPBS79>-RELAT = 1.

ENDLOOP.

LOOP AT IT_V_T7SAPBS79 INTO WA_V_T7SAPBS79.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T7SAPBS79-MASSN, sy-vline,
  WA_V_T7SAPBS79-MASSG, sy-vline,
  WA_V_T7SAPBS79-INFTY, sy-vline,
  WA_V_T7SAPBS79-SUBTY, sy-vline,
  WA_V_T7SAPBS79-PREAS, sy-vline,
  WA_V_T7SAPBS79-ENDDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T7SAPBS79 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_V_T7SAPBS79 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_V_T7SAPBS79 INTO WA_V_T7SAPBS79.


*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_V_T7SAPBS79_STR, 
MANDT TYPE STRING,
QGROP TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
RELAT TYPE STRING,
MASSN TYPE STRING,
MASSG TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
PREAS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
ACODE TYPE STRING,
OTYPT TYPE STRING,
RELTT TYPE STRING,
MASNT TYPE STRING,
MASGT TYPE STRING,
INFTT TYPE STRING,
PREAT TYPE STRING,
QGROT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T7SAPBS79_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_V_T7SAPBS79_STR-MANDT sy-vline 
WA_V_T7SAPBS79_STR-QGROP sy-vline 
WA_V_T7SAPBS79_STR-OTYPE sy-vline 
WA_V_T7SAPBS79_STR-OBJID sy-vline 
WA_V_T7SAPBS79_STR-RELAT sy-vline 
WA_V_T7SAPBS79_STR-MASSN sy-vline 
WA_V_T7SAPBS79_STR-MASSG sy-vline 
WA_V_T7SAPBS79_STR-INFTY sy-vline 
WA_V_T7SAPBS79_STR-SUBTY sy-vline 
WA_V_T7SAPBS79_STR-PREAS sy-vline 
WA_V_T7SAPBS79_STR-ENDDA sy-vline 
WA_V_T7SAPBS79_STR-BEGDA sy-vline 
WA_V_T7SAPBS79_STR-ACODE sy-vline 
WA_V_T7SAPBS79_STR-OTYPT sy-vline 
WA_V_T7SAPBS79_STR-RELTT sy-vline 
WA_V_T7SAPBS79_STR-MASNT sy-vline 
WA_V_T7SAPBS79_STR-MASGT sy-vline 
WA_V_T7SAPBS79_STR-INFTT sy-vline 
WA_V_T7SAPBS79_STR-PREAT sy-vline 
WA_V_T7SAPBS79_STR-QGROT sy-vline      INTO ld_text SEPARATED BY SPACE.

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