ABAP Select data from SAP table FSH_DRREQ_SO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FSH_DRREQ_SO
*  INTO TABLE @DATA(IT_FSH_DRREQ_SO2).
*--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_FSH_DRREQ_SO INDEX 1 INTO DATA(WA_FSH_DRREQ_SO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FSH_DRREQ_SO>-VBELN = 1.
<FSH_DRREQ_SO>-AUART = 1.
<FSH_DRREQ_SO>-VKORG = 1.
<FSH_DRREQ_SO>-VTWEG = 1.
<FSH_DRREQ_SO>-SPART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FSH_DRREQ_SO-POSNR, sy-vline,
  WA_FSH_DRREQ_SO-MATNR, sy-vline,
  WA_FSH_DRREQ_SO-WERKS, sy-vline,
  WA_FSH_DRREQ_SO-SGT_RCAT, sy-vline,
  WA_FSH_DRREQ_SO-ETENR, sy-vline,
  WA_FSH_DRREQ_SO-EDATU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FSH_DRREQ_SO 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_FSH_DRREQ_SO 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_FSH_DRREQ_SO INTO WA_FSH_DRREQ_SO.


*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 ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FSH_DRREQ_SO-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FSH_DRREQ_SO-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_FSH_DRREQ_SO-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FSH_DRREQ_SO-AUART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_FSH_DRREQ_SO-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FSH_DRREQ_SO-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FSH_DRREQ_SO-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FSH_DRREQ_SO-VRKME.
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_FSH_DRREQ_SO_STR, 
VBELN TYPE STRING,
AUART TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
POSNR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
SGT_RCAT TYPE STRING,
ETENR TYPE STRING,
EDATU TYPE STRING,
TOTAL_QTY TYPE STRING,
OPEN_QTY TYPE STRING,
FSH_RALLOC_QTY TYPE STRING,
FSH_ABGRU TYPE STRING,
INCPO TYPE STRING,
MAX_POSNR TYPE STRING,
WRF_CHARSTC1 TYPE STRING,
WRF_CHARSTC2 TYPE STRING,
WRF_CHARSTC3 TYPE STRING,
WRF_CHARSTC1_TXT TYPE STRING,
WRF_CHARSTC2_TXT TYPE STRING,
WRF_CHARSTC3_TXT TYPE STRING,
REQDAT TYPE STRING,
MBDAT TYPE STRING,
LMENG TYPE STRING,
DLVQTY_BU TYPE STRING,
LGORT TYPE STRING,
VBTYP TYPE STRING,
RRQQTY_BU TYPE STRING,
CRQQTY_BU TYPE STRING,
REFQTY_BU TYPE STRING,
UEPOS TYPE STRING,
REQ_DLVDATE TYPE STRING,
UMVKN TYPE STRING,
UMVKZ TYPE STRING,
VRKME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FSH_DRREQ_SO_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_FSH_DRREQ_SO_STR-VBELN sy-vline 
WA_FSH_DRREQ_SO_STR-AUART sy-vline 
WA_FSH_DRREQ_SO_STR-VKORG sy-vline 
WA_FSH_DRREQ_SO_STR-VTWEG sy-vline 
WA_FSH_DRREQ_SO_STR-SPART sy-vline 
WA_FSH_DRREQ_SO_STR-POSNR sy-vline 
WA_FSH_DRREQ_SO_STR-MATNR sy-vline 
WA_FSH_DRREQ_SO_STR-WERKS sy-vline 
WA_FSH_DRREQ_SO_STR-SGT_RCAT sy-vline 
WA_FSH_DRREQ_SO_STR-ETENR sy-vline 
WA_FSH_DRREQ_SO_STR-EDATU sy-vline 
WA_FSH_DRREQ_SO_STR-TOTAL_QTY sy-vline 
WA_FSH_DRREQ_SO_STR-OPEN_QTY sy-vline 
WA_FSH_DRREQ_SO_STR-FSH_RALLOC_QTY sy-vline 
WA_FSH_DRREQ_SO_STR-FSH_ABGRU sy-vline 
WA_FSH_DRREQ_SO_STR-INCPO sy-vline 
WA_FSH_DRREQ_SO_STR-MAX_POSNR sy-vline 
WA_FSH_DRREQ_SO_STR-WRF_CHARSTC1 sy-vline 
WA_FSH_DRREQ_SO_STR-WRF_CHARSTC2 sy-vline 
WA_FSH_DRREQ_SO_STR-WRF_CHARSTC3 sy-vline 
WA_FSH_DRREQ_SO_STR-WRF_CHARSTC1_TXT sy-vline 
WA_FSH_DRREQ_SO_STR-WRF_CHARSTC2_TXT sy-vline 
WA_FSH_DRREQ_SO_STR-WRF_CHARSTC3_TXT sy-vline 
WA_FSH_DRREQ_SO_STR-REQDAT sy-vline 
WA_FSH_DRREQ_SO_STR-MBDAT sy-vline 
WA_FSH_DRREQ_SO_STR-LMENG sy-vline 
WA_FSH_DRREQ_SO_STR-DLVQTY_BU sy-vline 
WA_FSH_DRREQ_SO_STR-LGORT sy-vline 
WA_FSH_DRREQ_SO_STR-VBTYP sy-vline 
WA_FSH_DRREQ_SO_STR-RRQQTY_BU sy-vline 
WA_FSH_DRREQ_SO_STR-CRQQTY_BU sy-vline 
WA_FSH_DRREQ_SO_STR-REFQTY_BU sy-vline 
WA_FSH_DRREQ_SO_STR-UEPOS sy-vline 
WA_FSH_DRREQ_SO_STR-REQ_DLVDATE sy-vline 
WA_FSH_DRREQ_SO_STR-UMVKN sy-vline 
WA_FSH_DRREQ_SO_STR-UMVKZ sy-vline 
WA_FSH_DRREQ_SO_STR-VRKME sy-vline      INTO ld_text SEPARATED BY SPACE.

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