ABAP Select data from SAP table T5H4O into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5H4O 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 T5H4O. 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 T5H4O 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_T5H4O TYPE STANDARD TABLE OF T5H4O,
      WA_T5H4O TYPE T5H4O,
      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: <T5H4O> TYPE T5H4O.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5H4O.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5H4O
  INTO TABLE IT_T5H4O.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5H4O
*  INTO TABLE @DATA(IT_T5H4O2).
*--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_T5H4O INDEX 1 INTO DATA(WA_T5H4O2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5H4O ASSIGNING <T5H4O>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5H4O>-MANDT = 1.
<T5H4O>-FOLYO = 1.
<T5H4O>-SVNUM = 1.
<T5H4O>-PERNR = 1.
<T5H4O>-KKEND = 1.

ENDLOOP.

LOOP AT IT_T5H4O INTO WA_T5H4O.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5H4O-KKKAT, sy-vline,
  WA_T5H4O-SORSZ, sy-vline,
  WA_T5H4O-YEARJ, sy-vline,
  WA_T5H4O-QUART, sy-vline,
  WA_T5H4O-DBFNR, sy-vline,
  WA_T5H4O-GESCH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5H4O 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_T5H4O 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_T5H4O INTO WA_T5H4O.


*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.

*Conversion exit PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_T5H4O-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T5H4O-GBDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field FGBDT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_T5H4O-FGBDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T5H4O-FGBDT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_T5H4O_STR, 
MANDT TYPE STRING,
FOLYO TYPE STRING,
SVNUM TYPE STRING,
PERNR TYPE STRING,
KKEND TYPE STRING,
KKKAT TYPE STRING,
SORSZ TYPE STRING,
YEARJ TYPE STRING,
QUART TYPE STRING,
DBFNR TYPE STRING,
GESCH TYPE STRING,
GBDAT TYPE STRING,
BJTIP TYPE STRING,
FEOR1 TYPE STRING,
FE1TX TYPE STRING,
KKBEG TYPE STRING,
NDBSZ TYPE STRING,
ND60N TYPE STRING,
ND70N TYPE STRING,
ND60K TYPE STRING,
ND100 TYPE STRING,
BSZOS TYPE STRING,
AKPAS TYPE STRING,
NDPAS TYPE STRING,
KEKEK TYPE STRING,
KDSVN TYPE STRING,
FGBDT TYPE STRING,
JVCTR TYPE STRING,
TBATL TYPE STRING,
ELTIP TYPE STRING,
TPOSZ TYPE STRING,
WAERS TYPE STRING,
DELSS TYPE STRING,
JOBID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5H4O_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_T5H4O_STR-MANDT sy-vline 
WA_T5H4O_STR-FOLYO sy-vline 
WA_T5H4O_STR-SVNUM sy-vline 
WA_T5H4O_STR-PERNR sy-vline 
WA_T5H4O_STR-KKEND sy-vline 
WA_T5H4O_STR-KKKAT sy-vline 
WA_T5H4O_STR-SORSZ sy-vline 
WA_T5H4O_STR-YEARJ sy-vline 
WA_T5H4O_STR-QUART sy-vline 
WA_T5H4O_STR-DBFNR sy-vline 
WA_T5H4O_STR-GESCH sy-vline 
WA_T5H4O_STR-GBDAT sy-vline 
WA_T5H4O_STR-BJTIP sy-vline 
WA_T5H4O_STR-FEOR1 sy-vline 
WA_T5H4O_STR-FE1TX sy-vline 
WA_T5H4O_STR-KKBEG sy-vline 
WA_T5H4O_STR-NDBSZ sy-vline 
WA_T5H4O_STR-ND60N sy-vline 
WA_T5H4O_STR-ND70N sy-vline 
WA_T5H4O_STR-ND60K sy-vline 
WA_T5H4O_STR-ND100 sy-vline 
WA_T5H4O_STR-BSZOS sy-vline 
WA_T5H4O_STR-AKPAS sy-vline 
WA_T5H4O_STR-NDPAS sy-vline 
WA_T5H4O_STR-KEKEK sy-vline 
WA_T5H4O_STR-KDSVN sy-vline 
WA_T5H4O_STR-FGBDT sy-vline 
WA_T5H4O_STR-JVCTR sy-vline 
WA_T5H4O_STR-TBATL sy-vline 
WA_T5H4O_STR-ELTIP sy-vline 
WA_T5H4O_STR-TPOSZ sy-vline 
WA_T5H4O_STR-WAERS sy-vline 
WA_T5H4O_STR-DELSS sy-vline 
WA_T5H4O_STR-JOBID sy-vline      INTO ld_text SEPARATED BY SPACE.

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