ABAP Select data from SAP table V_T51T8 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T51T8 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_T51T8. 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_T51T8 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_T51T8 TYPE STANDARD TABLE OF V_T51T8,
      WA_V_T51T8 TYPE V_T51T8,
      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_T51T8> TYPE V_T51T8.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T51T8.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T51T8
  INTO TABLE IT_V_T51T8.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T51T8
*  INTO TABLE @DATA(IT_V_T51T82).
*--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_T51T8 INDEX 1 INTO DATA(WA_V_T51T82).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T51T8 ASSIGNING <V_T51T8>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T51T8>-MANDT = 1.
<V_T51T8>-MOLGA = 1.
<V_T51T8>-TXFRM = 1.
<V_T51T8>-ENDDA = 1.
<V_T51T8>-BEGDA = 1.

ENDLOOP.

LOOP AT IT_V_T51T8 INTO WA_V_T51T8.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T51T8-TMTOT, sy-vline,
  WA_V_T51T8-TIMUN, sy-vline,
  WA_V_T51T8-CORRN, sy-vline,
  WA_V_T51T8-CRNFR, sy-vline,
  WA_V_T51T8-P001X, sy-vline,
  WA_V_T51T8-P002X, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T51T8 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_T51T8 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_T51T8 INTO WA_V_T51T8.


*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_T51T8_STR, 
MANDT TYPE STRING,
MOLGA TYPE STRING,
TXFRM TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
TMTOT TYPE STRING,
TIMUN TYPE STRING,
CORRN TYPE STRING,
CRNFR TYPE STRING,
P001X TYPE STRING,
P002X TYPE STRING,
P006X TYPE STRING,
CMPAD TYPE STRING,
WKSAD TYPE STRING,
MTFRM TYPE STRING,
SCFRM TYPE STRING,
TAXAU TYPE STRING,
FRMTY TYPE STRING,
ATTXT TYPE STRING,
ATTX2 TYPE STRING,
ATTX3 TYPE STRING,
FRMN1 TYPE STRING,
FRMN2 TYPE STRING,
FRMNM TYPE STRING,
ATTX4 TYPE STRING,
NPFLG TYPE STRING,
FPINT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T51T8_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_T51T8_STR-MANDT sy-vline 
WA_V_T51T8_STR-MOLGA sy-vline 
WA_V_T51T8_STR-TXFRM sy-vline 
WA_V_T51T8_STR-ENDDA sy-vline 
WA_V_T51T8_STR-BEGDA sy-vline 
WA_V_T51T8_STR-TMTOT sy-vline 
WA_V_T51T8_STR-TIMUN sy-vline 
WA_V_T51T8_STR-CORRN sy-vline 
WA_V_T51T8_STR-CRNFR sy-vline 
WA_V_T51T8_STR-P001X sy-vline 
WA_V_T51T8_STR-P002X sy-vline 
WA_V_T51T8_STR-P006X sy-vline 
WA_V_T51T8_STR-CMPAD sy-vline 
WA_V_T51T8_STR-WKSAD sy-vline 
WA_V_T51T8_STR-MTFRM sy-vline 
WA_V_T51T8_STR-SCFRM sy-vline 
WA_V_T51T8_STR-TAXAU sy-vline 
WA_V_T51T8_STR-FRMTY sy-vline 
WA_V_T51T8_STR-ATTXT sy-vline 
WA_V_T51T8_STR-ATTX2 sy-vline 
WA_V_T51T8_STR-ATTX3 sy-vline 
WA_V_T51T8_STR-FRMN1 sy-vline 
WA_V_T51T8_STR-FRMN2 sy-vline 
WA_V_T51T8_STR-FRMNM sy-vline 
WA_V_T51T8_STR-ATTX4 sy-vline 
WA_V_T51T8_STR-NPFLG sy-vline 
WA_V_T51T8_STR-FPINT sy-vline      INTO ld_text SEPARATED BY SPACE.

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