ABAP Select data from SAP table T74FH into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T74FH 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 T74FH. 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 T74FH 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_T74FH TYPE STANDARD TABLE OF T74FH,
      WA_T74FH TYPE T74FH,
      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: <T74FH> TYPE T74FH.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T74FH.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T74FH
  INTO TABLE IT_T74FH.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T74FH
*  INTO TABLE @DATA(IT_T74FH2).
*--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_T74FH INDEX 1 INTO DATA(WA_T74FH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T74FH ASSIGNING <T74FH>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T74FH>-MANDT = 1.
<T74FH>-BAREA = 1.
<T74FH>-BPLAN = 1.
<T74FH>-EECON = 1.
<T74FH>-SALGR = 1.

ENDLOOP.

LOOP AT IT_T74FH INTO WA_T74FH.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T74FH-AGEGR, sy-vline,
  WA_T74FH-LOSGR, sy-vline,
  WA_T74FH-EECGR, sy-vline,
  WA_T74FH-ENDDA, sy-vline,
  WA_T74FH-BEGDA, sy-vline,
  WA_T74FH-AMTOK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T74FH 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_T74FH 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_T74FH INTO WA_T74FH.


*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_T74FH_STR, 
MANDT TYPE STRING,
BAREA TYPE STRING,
BPLAN TYPE STRING,
EECON TYPE STRING,
SALGR TYPE STRING,
AGEGR TYPE STRING,
LOSGR TYPE STRING,
EECGR TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
AMTOK TYPE STRING,
PCTOK TYPE STRING,
UNTOK TYPE STRING,
PREOK TYPE STRING,
PSTOK TYPE STRING,
BPROK TYPE STRING,
BPTOK TYPE STRING,
CMINA TYPE STRING,
CMAXA TYPE STRING,
PMINA TYPE STRING,
PMAXA TYPE STRING,
BCMIA TYPE STRING,
BCMAA TYPE STRING,
BPMIA TYPE STRING,
BPMAA TYPE STRING,
CMINP TYPE STRING,
CMAXP TYPE STRING,
PMINP TYPE STRING,
PMAXP TYPE STRING,
BCMIP TYPE STRING,
BCMAP TYPE STRING,
BPMIP TYPE STRING,
BPMAP TYPE STRING,
CMINU TYPE STRING,
CMAXU TYPE STRING,
PMINU TYPE STRING,
PMAXU TYPE STRING,
BCMIU TYPE STRING,
BCMAU TYPE STRING,
BPMIU TYPE STRING,
BPMAU TYPE STRING,
LIMIT TYPE STRING,
PTLIM TYPE STRING,
TLLIM TYPE STRING,
EECRL TYPE STRING,
EECRN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T74FH_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_T74FH_STR-MANDT sy-vline 
WA_T74FH_STR-BAREA sy-vline 
WA_T74FH_STR-BPLAN sy-vline 
WA_T74FH_STR-EECON sy-vline 
WA_T74FH_STR-SALGR sy-vline 
WA_T74FH_STR-AGEGR sy-vline 
WA_T74FH_STR-LOSGR sy-vline 
WA_T74FH_STR-EECGR sy-vline 
WA_T74FH_STR-ENDDA sy-vline 
WA_T74FH_STR-BEGDA sy-vline 
WA_T74FH_STR-AMTOK sy-vline 
WA_T74FH_STR-PCTOK sy-vline 
WA_T74FH_STR-UNTOK sy-vline 
WA_T74FH_STR-PREOK sy-vline 
WA_T74FH_STR-PSTOK sy-vline 
WA_T74FH_STR-BPROK sy-vline 
WA_T74FH_STR-BPTOK sy-vline 
WA_T74FH_STR-CMINA sy-vline 
WA_T74FH_STR-CMAXA sy-vline 
WA_T74FH_STR-PMINA sy-vline 
WA_T74FH_STR-PMAXA sy-vline 
WA_T74FH_STR-BCMIA sy-vline 
WA_T74FH_STR-BCMAA sy-vline 
WA_T74FH_STR-BPMIA sy-vline 
WA_T74FH_STR-BPMAA sy-vline 
WA_T74FH_STR-CMINP sy-vline 
WA_T74FH_STR-CMAXP sy-vline 
WA_T74FH_STR-PMINP sy-vline 
WA_T74FH_STR-PMAXP sy-vline 
WA_T74FH_STR-BCMIP sy-vline 
WA_T74FH_STR-BCMAP sy-vline 
WA_T74FH_STR-BPMIP sy-vline 
WA_T74FH_STR-BPMAP sy-vline 
WA_T74FH_STR-CMINU sy-vline 
WA_T74FH_STR-CMAXU sy-vline 
WA_T74FH_STR-PMINU sy-vline 
WA_T74FH_STR-PMAXU sy-vline 
WA_T74FH_STR-BCMIU sy-vline 
WA_T74FH_STR-BCMAU sy-vline 
WA_T74FH_STR-BPMIU sy-vline 
WA_T74FH_STR-BPMAU sy-vline 
WA_T74FH_STR-LIMIT sy-vline 
WA_T74FH_STR-PTLIM sy-vline 
WA_T74FH_STR-TLLIM sy-vline 
WA_T74FH_STR-EECRL sy-vline 
WA_T74FH_STR-EECRN sy-vline      INTO ld_text SEPARATED BY SPACE.

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