ABAP Select data from SAP table T430H into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T430H 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 T430H. 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 T430H 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_T430H TYPE STANDARD TABLE OF T430H,
      WA_T430H TYPE T430H,
      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: <T430H> TYPE T430H.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T430H.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T430H
  INTO TABLE IT_T430H.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T430H
*  INTO TABLE @DATA(IT_T430H2).
*--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_T430H INDEX 1 INTO DATA(WA_T430H2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T430H ASSIGNING <T430H>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T430H>-MANDT = 1.
<T430H>-PLNAW = 1.
<T430H>-STEUS = 1.
<T430H>-TERM = 1.
<T430H>-LIEF = 1.

ENDLOOP.

LOOP AT IT_T430H INTO WA_T430H.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T430H-MRKKZ, sy-vline,
  WA_T430H-LTSCH, sy-vline,
  WA_T430H-PKOST, sy-vline,
  WA_T430H-TVWKZ, sy-vline,
  WA_T430H-AUTWE, sy-vline,
  WA_T430H-VART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T430H 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_T430H 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_T430H INTO WA_T430H.


*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_T430H_STR, 
MANDT TYPE STRING,
PLNAW TYPE STRING,
STEUS TYPE STRING,
TERM TYPE STRING,
LIEF TYPE STRING,
MRKKZ TYPE STRING,
LTSCH TYPE STRING,
PKOST TYPE STRING,
TVWKZ TYPE STRING,
AUTWE TYPE STRING,
VART TYPE STRING,
LODR TYPE STRING,
RUEK TYPE STRING,
RUDR TYPE STRING,
VRGD TYPE STRING,
KALKZ TYPE STRING,
KAPA TYPE STRING,
SERVICE TYPE STRING,
REWORK TYPE STRING,
SCHEDEX TYPE STRING,
WIP TYPE STRING,
WIPB_GR_CTRL TYPE STRING,
NOT_MES_REL TYPE STRING,
TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T430H_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_T430H_STR-MANDT sy-vline 
WA_T430H_STR-PLNAW sy-vline 
WA_T430H_STR-STEUS sy-vline 
WA_T430H_STR-TERM sy-vline 
WA_T430H_STR-LIEF sy-vline 
WA_T430H_STR-MRKKZ sy-vline 
WA_T430H_STR-LTSCH sy-vline 
WA_T430H_STR-PKOST sy-vline 
WA_T430H_STR-TVWKZ sy-vline 
WA_T430H_STR-AUTWE sy-vline 
WA_T430H_STR-VART sy-vline 
WA_T430H_STR-LODR sy-vline 
WA_T430H_STR-RUEK sy-vline 
WA_T430H_STR-RUDR sy-vline 
WA_T430H_STR-VRGD sy-vline 
WA_T430H_STR-KALKZ sy-vline 
WA_T430H_STR-KAPA sy-vline 
WA_T430H_STR-SERVICE sy-vline 
WA_T430H_STR-REWORK sy-vline 
WA_T430H_STR-SCHEDEX sy-vline 
WA_T430H_STR-WIP sy-vline 
WA_T430H_STR-WIPB_GR_CTRL sy-vline 
WA_T430H_STR-NOT_MES_REL sy-vline 
WA_T430H_STR-TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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