ABAP Select data from SAP table V_T799BATTRIB02A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T799BATTRIB02A 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_T799BATTRIB02A. 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_T799BATTRIB02A 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_T799BATTRIB02A TYPE STANDARD TABLE OF V_T799BATTRIB02A,
      WA_V_T799BATTRIB02A TYPE V_T799BATTRIB02A,
      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_T799BATTRIB02A> TYPE V_T799BATTRIB02A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T799BATTRIB02A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T799BATTRIB02A
  INTO TABLE IT_V_T799BATTRIB02A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T799BATTRIB02A
*  INTO TABLE @DATA(IT_V_T799BATTRIB02A2).
*--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_T799BATTRIB02A INDEX 1 INTO DATA(WA_V_T799BATTRIB02A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T799BATTRIB02A ASSIGNING <V_T799BATTRIB02A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T799BATTRIB02A>-MANDT = 1.
<V_T799BATTRIB02A>-MOLGA = 1.
<V_T799BATTRIB02A>-APPL = 1.
<V_T799BATTRIB02A>-HR_ATTRIBUTE = 1.
<V_T799BATTRIB02A>-HR_VALUE = 1.

ENDLOOP.

LOOP AT IT_V_T799BATTRIB02A INTO WA_V_T799BATTRIB02A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T799BATTRIB02A-ENDDA, sy-vline,
  WA_V_T799BATTRIB02A-BEGDA, sy-vline,
  WA_V_T799BATTRIB02A-HR_VALUE_TXT, sy-vline,
  WA_V_T799BATTRIB02A-SORTID, sy-vline,
  WA_V_T799BATTRIB02A-IS_DEFAULT, sy-vline,
  WA_V_T799BATTRIB02A-APPL_HIDDEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T799BATTRIB02A 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_T799BATTRIB02A 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_T799BATTRIB02A INTO WA_V_T799BATTRIB02A.


*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_T799BATTRIB02A_STR, 
MANDT TYPE STRING,
MOLGA TYPE STRING,
APPL TYPE STRING,
HR_ATTRIBUTE TYPE STRING,
HR_VALUE TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
HR_VALUE_TXT TYPE STRING,
SORTID TYPE STRING,
IS_DEFAULT TYPE STRING,
APPL_HIDDEN TYPE STRING,
IS_ACTIVATED TYPE STRING,
MOLGA_TXT TYPE STRING,
APPL_TXT TYPE STRING,
HR_ATTRIBUTE_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T799BATTRIB02A_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_T799BATTRIB02A_STR-MANDT sy-vline 
WA_V_T799BATTRIB02A_STR-MOLGA sy-vline 
WA_V_T799BATTRIB02A_STR-APPL sy-vline 
WA_V_T799BATTRIB02A_STR-HR_ATTRIBUTE sy-vline 
WA_V_T799BATTRIB02A_STR-HR_VALUE sy-vline 
WA_V_T799BATTRIB02A_STR-ENDDA sy-vline 
WA_V_T799BATTRIB02A_STR-BEGDA sy-vline 
WA_V_T799BATTRIB02A_STR-HR_VALUE_TXT sy-vline 
WA_V_T799BATTRIB02A_STR-SORTID sy-vline 
WA_V_T799BATTRIB02A_STR-IS_DEFAULT sy-vline 
WA_V_T799BATTRIB02A_STR-APPL_HIDDEN sy-vline 
WA_V_T799BATTRIB02A_STR-IS_ACTIVATED sy-vline 
WA_V_T799BATTRIB02A_STR-MOLGA_TXT sy-vline 
WA_V_T799BATTRIB02A_STR-APPL_TXT sy-vline 
WA_V_T799BATTRIB02A_STR-HR_ATTRIBUTE_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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