ABAP Select data from SAP table SMSRD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SMSRD
*  INTO TABLE @DATA(IT_SMSRD2).
*--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_SMSRD INDEX 1 INTO DATA(WA_SMSRD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SMSRD>-MATNR = 1.
<SMSRD>-WERKS = 1.
<SMSRD>-CHARG = 1.
<SMSRD>-SOBKZ = 1.
<SMSRD>-LIFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SMSRD-PSPNR, sy-vline,
  WA_SMSRD-RMSRD, sy-vline,
  WA_SMSRD-XDBUP, sy-vline,
  WA_SMSRD-LFGJA, sy-vline,
  WA_SMSRD-LFMON, sy-vline,
  WA_SMSRD-RDLAB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SMSRD 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_SMSRD 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_SMSRD INTO WA_SMSRD.


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

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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_SMSRD-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SMSRD-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_SMSRD-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SMSRD-LFGJA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RDGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_SMSRD-RDGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SMSRD-RDGJA.
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_SMSRD_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
LIFNR TYPE STRING,
PSPNR TYPE STRING,
RMSRD TYPE STRING,
XDBUP TYPE STRING,
LFGJA TYPE STRING,
LFMON TYPE STRING,
RDLAB TYPE STRING,
RDINS TYPE STRING,
RDEIN TYPE STRING,
RDVLA TYPE STRING,
RDVIN TYPE STRING,
RDVEI TYPE STRING,
RDLAB_OLD TYPE STRING,
RDINS_OLD TYPE STRING,
RDEIN_OLD TYPE STRING,
RDVLA_OLD TYPE STRING,
RDVIN_OLD TYPE STRING,
RDVEI_OLD TYPE STRING,
RMSRDH TYPE STRING,
RDLFM TYPE STRING,
RDGJA TYPE STRING,
RDRUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SMSRD_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_SMSRD_STR-MATNR sy-vline 
WA_SMSRD_STR-WERKS sy-vline 
WA_SMSRD_STR-CHARG sy-vline 
WA_SMSRD_STR-SOBKZ sy-vline 
WA_SMSRD_STR-LIFNR sy-vline 
WA_SMSRD_STR-PSPNR sy-vline 
WA_SMSRD_STR-RMSRD sy-vline 
WA_SMSRD_STR-XDBUP sy-vline 
WA_SMSRD_STR-LFGJA sy-vline 
WA_SMSRD_STR-LFMON sy-vline 
WA_SMSRD_STR-RDLAB sy-vline 
WA_SMSRD_STR-RDINS sy-vline 
WA_SMSRD_STR-RDEIN sy-vline 
WA_SMSRD_STR-RDVLA sy-vline 
WA_SMSRD_STR-RDVIN sy-vline 
WA_SMSRD_STR-RDVEI sy-vline 
WA_SMSRD_STR-RDLAB_OLD sy-vline 
WA_SMSRD_STR-RDINS_OLD sy-vline 
WA_SMSRD_STR-RDEIN_OLD sy-vline 
WA_SMSRD_STR-RDVLA_OLD sy-vline 
WA_SMSRD_STR-RDVIN_OLD sy-vline 
WA_SMSRD_STR-RDVEI_OLD sy-vline 
WA_SMSRD_STR-RMSRDH sy-vline 
WA_SMSRD_STR-RDLFM sy-vline 
WA_SMSRD_STR-RDGJA sy-vline 
WA_SMSRD_STR-RDRUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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