ABAP Select data from SAP table T5F6G into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5F6G 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 T5F6G. 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 T5F6G 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_T5F6G TYPE STANDARD TABLE OF T5F6G,
      WA_T5F6G TYPE T5F6G,
      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: <T5F6G> TYPE T5F6G.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5F6G.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5F6G
  INTO TABLE IT_T5F6G.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5F6G
*  INTO TABLE @DATA(IT_T5F6G2).
*--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_T5F6G INDEX 1 INTO DATA(WA_T5F6G2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5F6G ASSIGNING <T5F6G>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5F6G>-ITFPC = 1.
<T5F6G>-NDLOT = 1.
<T5F6G>-COENR = 1.
<T5F6G>-TELOT = 1.
<T5F6G>-PEDPA = 1.

ENDLOOP.

LOOP AT IT_T5F6G INTO WA_T5F6G.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5F6G-DDJOU, sy-vline,
  WA_T5F6G-RECNR, sy-vline,
  WA_T5F6G-SESNR, sy-vline,
  WA_T5F6G-STANR, sy-vline,
  WA_T5F6G-NDPAC, sy-vline,
  WA_T5F6G-DSMVS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5F6G 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_T5F6G 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_T5F6G INTO WA_T5F6G.


*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_T5F6G_STR, 
ITFPC TYPE STRING,
NDLOT TYPE STRING,
COENR TYPE STRING,
TELOT TYPE STRING,
PEDPA TYPE STRING,
DDJOU TYPE STRING,
RECNR TYPE STRING,
SESNR TYPE STRING,
STANR TYPE STRING,
NDPAC TYPE STRING,
DSMVS TYPE STRING,
PEDP2 TYPE STRING,
NRDEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5F6G_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_T5F6G_STR-ITFPC sy-vline 
WA_T5F6G_STR-NDLOT sy-vline 
WA_T5F6G_STR-COENR sy-vline 
WA_T5F6G_STR-TELOT sy-vline 
WA_T5F6G_STR-PEDPA sy-vline 
WA_T5F6G_STR-DDJOU sy-vline 
WA_T5F6G_STR-RECNR sy-vline 
WA_T5F6G_STR-SESNR sy-vline 
WA_T5F6G_STR-STANR sy-vline 
WA_T5F6G_STR-NDPAC sy-vline 
WA_T5F6G_STR-DSMVS sy-vline 
WA_T5F6G_STR-PEDP2 sy-vline 
WA_T5F6G_STR-NRDEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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